MyCarTSB

2012 Hyundai Sonata Cruise Control Problems

47 owner-reported cruise control complaints from NHTSA data

47
Complaints
6
Crashes
Jan 2016Dec 2020
Date Range

Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.

Owner Complaints (47)

mediumVEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM
Filed: Jan 2023

When I start the vehicle in the morning I leave the neighborhood going around 15mph and the car loses power. I have to let off the gas completely then reapply but it still continues to studder. I applied the slapstick sift mode and noticed it does this in first and fourth gear. In automatic you can’t see it

NHTSA #: 11500793
mediumVEHICLE SPEED CONTROL,SERVICE BRAKES
Filed: Nov 2022

Driving on a freeway when check brake warning appeared. Car speed dropped down to drastically. Alarm was chirping and brakes made a bad grinding noise

NHTSA #: 11494823
mediumVEHICLE SPEED CONTROL,SERVICE BRAKES,ENGINE
Filed: Nov 2022

The car starts alarming out of nowhere while driving at 70 mph on the interstate and the Hybrid System Warning - Safely Stop and Do Not Drive along with the wrench, battery light and engine light all appearing on the dashboard to pull over and do not drive when this occurred I lost total control of the vehicle. The brake peddle goes all the way to the floor enabling me to stop and I lost the ability to steer the vehicle as the power steering went out as well while this was happening. I almost got killed as I was on the highway driving at 70 mph. I immediately put on my hazards lights to signal to other drivers that I was having mechanical problems. Thank GOD I was able to pull over without anyone hitting me from behind. I have had major major issues with this car since I purchased it the engine seized up on me in the same manner back in 2020 and the engine was replaced. Then there was an issue with the transmission and that was also replaced. Then the brake booster also failed and had to be replaced as well. Hyundai aught to be ashamed of the production of this vehicle as it is truly a severe risk to the lives of the consumers not just the person who is driving this vehicle but also to those who may be behind someone driving as this could cause a major accident and people could be killed. These cars need to be recalled and they need to get down to what is causing these issues in order to fix the problem. I pray that you all make Hyundai do a recall on this vehicle as I have googled and see that there has been many others that have encountered these same issues. I am filing this complaint in hopes of you all getting involved to do something about this. Any help with this will be greatly appreciated.

NHTSA #: 11492621
mediumVEHICLE SPEED CONTROL
Filed: Oct 2022

Approx july 2022 My sonata began to malfunction, first the steering wheel buttons stopped working intermittently off and on unable to turn on and set cruise control, unable to use hands free phone options as well as unable to navigate cluster features, as the time goes on the problem gets worse and eventually do not function ever. I replaced the steering wheel buttons which fixed the issue temporarily only now the vehicle will engage cruise control, accelerate dramatically and continue to gain speed. I am unable to disengage cruise control via the brake pedal, or cancel option or steering wheel. If I depress the brake pedal it will begin to decelerate but once I let off the brake pedal the engine will revv high and gain speed again. Buttons begin to function in a reverse order meaning press cancel, cruise turns on, press set button, cruise will set, press set button cruise will disengage etc. The only way to disengage cruise and rapid acceleration in this dangerous scenario is to Press the on off cruise control button. Immediately stopped vehicle had it towed to dealership, they stated that they could not replicate the problem, however their diagnosis for the problem was due to incorrect brake fluid put in the vehicle and suggested to completely replace the entire brake system of the vehicle I declined as I felt that was not the problem in fact bizarre diagnosis. Only hyundai dealership has ever put any brake fluid in my vehicle... this is completely dangerous as when vehicle suddenly accelerated I was unable to turn it off I almost rear ended a vehicle on the freeway going 70 mph. I no longer feel safe in the vehicle and it sits collecting dust while I make monthly payments.

NHTSA #: 11490933
mediumVEHICLE SPEED CONTROL,SERVICE BRAKES,ENGINE
Filed: Jan 2022

After the recent recall repairs, the car started to intermittently getting a message on the dashboard saying ‘Hybrid System Warning - Safely stop and do not drive’ and ‘Check brakes’ and the brake lights came on with a loud chiming beep, the car would stop accelerating and would not go beyond 10 mph, also the breaks would fail to apply correctly and made a loud screeching sound when applied. It used to do have this issue without any warning, while driving or stopped at the light, without any distinguishing pattern. However, it used to go away when the car was restarted multiple times. However now the message is on continuously and doesn’t go away with the restarting the car. After taking to the dealership, they said that the repairs would cost $3000 as the Hydraulic Power Assembly unit has failed. After looking for the issue online, I have found that a lot of the 2011-14 Hyundai Sonata Hybrid have this same issue and seems to be a manufacturing defect. This is a huge life risk for the owners of this car since it can happen while on the freeway and pose a life threatening risk to their life. It is also a huge financial burden for the owners for a manufacturing defect. I would like you to investigate these issues and provide us with a appropriate solution.

NHTSA #: 11446145
mediumVEHICLE SPEED CONTROL
Filed: Jul 2021

The contact owns a 2012 Hyundai Sonata. The contact stated while driving 70 mph, the accelerator pedal was depressed however, the vehicle failed to respond. The vehicle decelerated independently with the Electronic Stability Control warning light illuminated. The contact was able to drive to the residence. The vehicle was not diagnosed or repaired. A dealer was not contacted. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 15V759000 (Exterior Lighting) however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 141,000.

NHTSA #: 11427103
mediumVEHICLE SPEED CONTROL
Filed: Jul 2021

Driving in traffic in town and accelerator pedal quit working. Deceleration happened until I went from 40 mph to 2mph. Then able to accelerate back up to 30mph and happened again until I coasted to a stop. Traction control light came on after second incident. Car was in park and still on. Turned car off, took key outside vehicle and exited vehicle. Car locked itself and brake lights came on and stayed on. This is a danger!!! Can cause an accident, driver has no control over vehicle at random times. Traumatic and scared to drive vehicle now.

NHTSA #: 11423515
mediumVEHICLE SPEED CONTROL,ENGINE
Filed: Feb 2021

VEHICLE IN MOTION, LESS THAN 40 MPH ON A CITY STREET WITH A SLIGHT INCLINE, LESS THAN THREE MILES FROM HOME. VEHICLE STARTED TO OPERATE SLUGGISHLY WITHOUT WARNING, WITH LACK OF POWER WHEN ACCELERATING. THE CHECK ENGINE LIGHT STARTED FLASHING, ACCELERATION SEVERELY DECREASED AND WAS UNABLE TO GO OVER 20 MPH (CAR WAS PLACED IN LIMP/ENGINE PROTECTION MODE). I SLOWLY DROVE THE CAR HOME AND WAS ABLE TO TROUBLESHOOT THE ISSUE. CONNECTED ON OBD2 SCANNER AND IMMEDIATELY RECEIVED A DTC P1326; INDICATING THE KNOCK SENSOR DETECTION SYSTEM PLACED THE CAR IN LIMP MODE DUE TO A DETECTED KNOCK/VIBRATION IN THE MOTOR. FURTHER RESEARCH PROVED SERVICE CAMPAIGN 953 (TSB 19-01-002H-1) WAS ALREADY OPENED IN LATE 2018 TO HELP RESOLVE THE P1326 ISSUE AND MANY 2011-2018 SONATAS WERE RECALLED TO GET A SOFTWARE UPDATE FOR THE KSDS; AS AN EARLY PREVENTIVE MEASURE FOR POSSIBLE FAULTY BEARINGS/RODS IN THE MOTOR. I HAD THE VEHICLE TOWED TO MY LOCAL HYUNDAI DEALERSHIP TO GET THE KSDS SOFTWARE UPDATE AFTER RECEIVING THE P1326 DTC. THE SERVICE TECH SAID MY VIN WAS NOT PART OF A RECALL OR CAMPAIGN AND CHARGED ME $173 TO UPDATE THE SOFTWARE AND CLEAR LIMP MODE. THE HYUNDAI TSB CLEARLY STATES THIS UPDATE IS FREE TO THE CUSTOMER AND APPLIES TO ALL SONATAS FROM 2011-2018; REGARDLESS IF THE VEHICLE WAS NOT PART OF THE ORIGINAL RECALL.

NHTSA #: 11396123
mediumVEHICLE SPEED CONTROL,ENGINE,FORWARD COLLISION AVOIDANCE
Filed: Feb 2021

I'M CONCERNED ABOUT THIS RECALL DUE TO THE FACT THAT I CAN TELL THE DIFFERENCE IN MY CAR AND I'M JUST TRYING TO BE SAFER WHILE DRIVING SO IF I CAN GET ANY INFORMATION ABOUT THIS THAT WOULD BE GREAT

NHTSA #: 11394576
mediumVEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM
Filed: Dec 2020

I HAD A VERY SCARY INCIDENT FRIDAY NIGHT, 12/18/20 ABOUT 8:30PM. I WAS ABOUT TO MERGE ONTO THE 5 FWY NORTH TO GO HOME, AND AS I AM COMING OUT OF THE TURN, AND ACCELERATING TO ANTICIPATE THE FLOW OF TRAFFIC, I SEE A BIG RIG IN MY REAR VIEW MIRROR IN THE DISTANCE. NATURALLY, I STEP ON THE GAS TO PUNCH IT, TO GIVE MYSELF AND THE RIG PLENTY OF DISTANCE AS TO NOT COLLIDE. MY CAR REVVED UP AND DECELERATES TO ABOUT 2MPH . I PANICKED AND MANAGED TO COAST THE CAR TO THE SHOULDER AS FAR RIGHT AS I COULD AND THE RIG BARRELS DOWN PAST ME. I WAS AFRAID TO COMPLETELY STOP ON THE SHOULDER OF THE FWY, AND THE CAR LASTED LONG ENOUGH TO COAST TO THE NEXT EXIT. I AM ABLE TO CONTINUE STEERING MY CAR CLOSE TO THE SHOULDER AT A CRAWLING PACE, AND TURNED ON MY HAZARD LIGHTS. I HAD PEOPLE MAD BEHIND ME, BUT I COULD NOT SPEED UP. I MANAGED TO COAST TO THE NEAREST EXIT, COME DOWN THE RAMP, AND STOP BRIEFLY WITH JUST ENOUGH MOMENTUM TO STEER LEFT ONTO TELEGRAPH IN COMMERCE, AND MY CAR COMPLETELY DIES IN THE FIRST LANE. THIS IS THE SECOND TIME MY CAR JUST DIES ON ME WHILE I AM DRIVING! FIRST TIME WAS THREE YEARS AGO IN DECEMBER 2017 . THE CAR HAD INITIALLY DIED WHILE MAKING A LEFT TURN. HOWEVER, AFTER TURNING THE CAR OFF AND WAITING A FEW MINUTES, I WAS ABLE TO TURN THE CAR ON AND DRIVE NO MORE THAN 30 MPH TO THE SAME DOWNEY HYUNDAI. THE ISSUE WAS UNDER FULL WARRANTY AND REPAIRED, BUT NOW A SECOND TIME? WORSE YET, THIS HAPPENED WHILE EXCELERATING ONTO THE FREEWAY. I DON'T WANT TO DRIVE AROUND IN A CAR THAT HAS REPEATED RECALLS FOR VARIOUS ISSUES. I ALSO DON'T WANT TO WORRY OF MY CAR DYING ON ME A THIRD TIME. MY SONATA IS CURRENTLY AT DOWNEY HYUNDAI AND THEY HAVE STARTED DIAGNOSTICS AND WILL HAVE A BETTER READING AS TO WHAT HAPPENED. I HAVE LOST ALL CONFIDENCE IN THIS VEHICLE AND WORRIED FOR MY SAFETY AND THAT OF ANY PASSENGERS I MAY HAVE WITH ME.

NHTSA #: 11384495
mediumVEHICLE SPEED CONTROL,UNKNOWN OR OTHER,ENGINE
Filed: May 2020

AFTER HAVING TO HAVE MY ENGINE REPLACED DUE TO MY CRANK SHAFT GETTING CLOGGED WITH METAL PIECES ON THE HIGHWAY AND DESTROYING THE ENGINE. I'VE BEEN HAVING ISSUES WITH THE REPLACEMENT ENGINE FEELING LIKE IT'S STALLING OUT OR LOSING THROTTLE EITHER DURING A TURN OR SHORTLY AFTER. IT'S NEVER POPPED AND ERROR CODE AND ONLY HAPPENS NOW AND THEN. *TR

NHTSA #: 11324543
mediumVEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC),ENGINE
Filed: Jul 2019

MY CAR'S CHECK ENGINE LIGHT CAME ON AND I TOOK IT TO THE SHOP FOR DIAGNOSING. THE CODE P1326 CAME UP AND NOBODY CAN FIGURE OUT THE PROBLEM. MY CAR DOESN'T ACCELERATE PROPERLY AND TAKE A MINUTE TO SHIFT GEARS AND DRIVE PROPERLY. THERE HAS BEEN OPEN COMMUNICATION ON THE ISSUE BY OTHER PEOPLE.

NHTSA #: 11228909
mediumVEHICLE SPEED CONTROL,SERVICE BRAKES
Filed: Jun 2019

LAST NIGHT AFTER PARKING, MY BREAK LIGHTS REMAINED LIT. MY FATHER AND I BOTH CHECKED EITHER ANYTHING INSIDE WAS DEPRESSING THE BRAKE PEDAL, AND THE EMERGENCY BREAK WAS NOT ENGAGED. I DROVE ABOUT 20 MILES TO WORK THE NEXT MORNING (LIGHTS STILL ON). PARKED AT WORK, LIGHTS STAYED ON. I WAS DRIVING ON HIGHWAY AND TRIED TO ACCELERATE AROUND 50 MPH. CAR BRAKED/DECELERATED INSTEAD OF ACCELERATING. I EXITED HIGHWAY IMMEDIATELY AND PULLED INTO A NEIGHBORHOOD. I AM ABLE TO PULL THE LEVER TO CHANGE INTO R/N/D WITHOUT PRESSING THE BRAKE DOWN (YOU SHOULD HAVE TO PRESS BREAK FIRST BEFORE SWITCHING). I KNOW THIS WAS A RECALL ISSUE FOR ELANTRAS AND SONATAS AT SOME POINT, BUT I DON'T BELIEVE IT INCLUDED MY CARS YEAR. THERE HAVE BEEN SO MANY RECALL THINGS, IT SEEMS MAYBE HYUNDAI JUST MAKES FAULTY PRODUCTS. 2012 HYUNDAI SONATA. 78,000 MILES. TRACTION LIGHT ALSO ILLUMINATED WHILE DRIVING THIS AM, BUT PERHAPS UNRELATED AS IT WAS FOGGY AND SO MAYBE SLIPPERY?

NHTSA #: 11222962
mediumVEHICLE SPEED CONTROL,SERVICE BRAKES
Filed: Jun 2019

WHILE DRIVING AND PRESSING THE ACCELERATOR IT ACTS AS IF ITS NOT GETTING ANY GAS, SO WHEN I REMOVE MY FOOT AND REPRESS IT, IT MOVES RIGHT ALONG. IT HAS HAPPENED 2 TIMES IN THE LAST 24 HOURS. NOW, I EXITED THE CAR AND WENT INTO THE HOUSE AND THE BRAKE LIGHTS ARE STILL ON.

NHTSA #: 11217300
mediumVEHICLE SPEED CONTROL
Filed: May 2019

WHILE DRIVING AT ANY SPEED WITH THE GAS PEDAL DEPRESSED, THE CAR WILL SUDDENLY SLOW DOWN WHEN I HIT A POTHOLE OR BUMP IN THE ROAD. IT DOES THE SAME THING WHEN USING CRUISE CONTROL. FOR EXAMPLE, I'LL BE DRIVING 50MPH AND I'LL HIT A BUMP IN THE ROAD AND MY RPM AND SPEED WILL DROP. IF I TAKE MY FOOT OFF OF THE GAS THEN RE PRESS IT, IT RE ENGAGES AND ACCELERATES AGAIN.

NHTSA #: 11207664
mediumVEHICLE SPEED CONTROL,TRACTION CONTROL SYSTEM
Filed: Mar 2019

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHEN THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE WOULD NOT ACCELERATE. IN ORDER TO GET THE VEHICLE TO DRIVE, THE CONTACT HAD TO RELEASE AND DEPRESS THE ACCELERATOR PEDAL QUICKLY. IN ADDITION, THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. VICTORVILLE HYUNDAI (14821 PALMADALE RD A, VICTORVILLE, CA 92392) STATED THAT THE VEHICLE WAS NOT INCLUDED IN AN UNKNOWN RECALL REGARDING THE BRAKES. THE MANUFACTURER WAS CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 180,000.

NHTSA #: 11192200
mediumVEHICLE SPEED CONTROL,ENGINE
Filed: Dec 2018

HAD MOTOR REPLACED FROM A PREVIOUS RECALL, 4DAYS AFTER THIS FIX I NOTICED A ROUGH IDLE. WENT TO NUMEROUS SHOPS INCLD DEALERSHIP WAS TOLD BY DEALERSHIP THAT RECALL WAS DONE AND ANY OTHER REPAIRS WOULD BE OUT OF POCKET. PROBLEM HAS PROGRESSED FROM ROUGH IDLE AND ENGINE NOISE TO POOR ACCELERATION AND MISTIMED BOOSTS. AS IN WHEN ENTERING HIGHWAY CAR DOESNT ACCELERATE VERY FAST VERY LONG DELAY BEFORE BOOST INTIATES. ONCE AT DESIRED SPEED WHEN SLOWING DOWN CAR BOOSTS WITHOUT PRESSURE TO ACCELERTATOR!!! NOW THAT WINTER HAS ARRIVED, SPORADICALLY ON COLD START CAR IDLES EVEN ROUGHER AND SOUNDS AS IF IT WITH SHUT OFF. WHEN DRIVING IN TRAFFIC CAR IDLES ROUGH THEN SHUTS OFF!! NO POWER STEERING! NO LIGHTS ! NO POWER! THIS HAPPENED WHILST CAR IS IN DRIVE AND IN MOTION! I TRY TO AVOID HWYS AND NIGHT TIME DRIVING WHEN I CAN AS IM SCARED TO DEATH OF THIS CAR. I PURCHASED IT USED IN DEC2017 11 DAYS LATER INTIAL ISSUES BEGAN WITH CAR LOOSING POWER. NOW AFTER ISSUE WAS "FIXED" BY REPLACEMENT MOTOR SAME INTERMEDIATE LOST OF POWER ISSUES AGAIN BUT WITH THE ADDED BOOSTING ISSUE AS WELL NOW.

NHTSA #: 11160859
mediumVEHICLE SPEED CONTROL
CrashFiled: Oct 2018

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHILE PULLING INTO A PARKING SPACE AT APPROXIMATELY 10 MPH, THE VEHICLE ACCELERATED INDEPENDENTLY AND CRASHED INTO A CURB AND A HANDICAP SIGN. AFTERWARDS, THE VEHICLE ACCELERATED RAPIDLY WITHOUT WARNING WHILE IN REVERSE. AS A RESULT, THE CONTACT CRASHED INTO A PARKED VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. FAIRFAX HYUNDAI (10925 FAIRFAX BLVD, FAIRFAX, VIRGINIA 22030, (703) 352-0444) WAS MADE AWARE OF THE CRASH AND REQUESTED THAT A TEST DRIVE BE CONDUCTED. THE VEHICLE WAS TAKEN TO A BODY REPAIR SHOP TO BE EVALUATED FOR THE DAMAGES. THE MANUFACTURER WAS NOT MADE AWARE OF THE CRASH. THE VEHICLE WAS NOT DIAGNOSED. THE FAILURE MILEAGE WAS APPROXIMATELY 57,000.

NHTSA #: 11141846
mediumVEHICLE SPEED CONTROL,ENGINE
Filed: Oct 2018

AFTER DRIVING FOR A FEW MINUTES ON HIGHWAY, MY 2012 SONATA HYBRID WILL START TO JUMP AND BUCK. IT SLOWLY LOSES POWER AND WHEN IT REACHES LOWER SPEEDS (UNDER 40 MPH) AS I TRY TO ACCELERATE IT WILL FEEL LIKE IT'S TRYING TO CATCH THE NEXT GEAR BUT WON'T. I WILL CONTINUE TO LOSE POWER SO I HAVE TO TRY TO LEAVE HIGHWAY OR PULL OVER, WHICH CAN BE DANGEROUS ON A HIGH SPEED ROAD. IT HAS HAPPENED THREE TIMES SINCE AUGUST 2018. JUST TOOK BACK TO DEALERSHIP BUT FIRST TWO TIMES THEY SAID THEY COULD NOT REPLICATE PROBLEM WHILE TEST DRIVING IT AND ALL DIAGNOSIS INDICATED THE CAR IS FINE. I SEE IN SOME WEB SITES THAT OTHER USERS NATION-WIDE HAVE HAD THE VERY SAME PROBLEM BUT WITH NO RESOLUTION AT HAND. THIS IS A VERY CONCERNING SAFETY ISSUE AS THE LAST TIME IT HAPPENED THE CAR BEHIND ME ALMOST RUN INTO ME AS MY CAR LOST POWER AND SPEED RAPIDLY AND STARTED TO BUCK/STUTTER.

NHTSA #: 11132911
mediumVEHICLE SPEED CONTROL
Filed: Jul 2018

WHEN ATTEMPTING TO INITIATE CRUISE CONTROL ON THE HIGHWAY ONLY THE ON/OFF BUTTON WILL WORK, SHOW WITH THE ILLUMINATION OF THE CRUISE LIGHT ON THE DASH CONSOLE. THE SET AND RESUME BUTTONS WILL ONLY WORK APPROXIMATELY 30% OF THE TIME AND THE CANCEL BUTTON NEVER WORKS. WHEN THE SYSTEM IS ALLOWING ME TO SET IT THE ONLY WAY TO DISENGAGE IT IS VIA THE BRAKE.

NHTSA #: 11111107
mediumVEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM
Filed: Apr 2018

I SCANNED AND I GOT THIS C1202 AND ALSO P0087

NHTSA #: 11084439
mediumVEHICLE SPEED CONTROL
Filed: Jan 2018

SPEED CONTROL INTERMITTENTLY NOT WORKING. NOW DOESN'T WORK AT ALL. HAVE HAD IT CHECKED MULTIPLE TIMES BUT BECAUSE IT'S INTERMITTENT THEY SAID NOTHING COULD BE DONE.

NHTSA #: 11064959
mediumVEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM
Filed: Sep 2017

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHILE DRIVING HIGHWAY SPEEDS, THE VEHICLE EXPERIENCED A LOSS OF POWER WITHOUT WARNING. THE VEHICLE WAS TAKEN TO SOUTH BAY HYUNDAI (20433 HAWTHORNE BLVD, TORRENCE, CA) WHERE IT WAS DIAGNOSED THAT THE ACCELERATOR PEDAL ASSEMBLY AND FUEL PUMP WERE DEFECTIVE AND NEEDED TO BE MODIFIED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 56,052.

NHTSA #: 11024206
mediumVEHICLE SPEED CONTROL,WHEELS
Filed: May 2017

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHILE DRIVING 40 MPH, THE CONTACT HEARD A KNOCKING NOISE COMING FROM THE FRONT DRIVER'S SIDE TIRE. THE CONTACT ALSO HEARD A CLICKING SOUND WHEN DEPRESSING THE ACCELERATOR PEDAL. THE VEHICLE WAS TAKEN TO JIM BURKE HYUNDAI (1424 5TH AVE N A, BIRMINGHAM, AL 35203), BUT THE DEALER WAS UNABLE TO REPLICATE THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 73,700.

NHTSA #: 10992318
mediumVEHICLE SPEED CONTROL
CrashFiled: Feb 2017

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. AFTER THE CONTACT'S FOOT WAS REMOVED FROM THE BRAKE PEDAL, THE VEHICLE EXPERIENCED UNINTENDED ACCELERATION THAT RESULTED IN A FRONT END COLLISION. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS TOWED TO THE DEALER. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS APPROXIMATELY 25,656.

NHTSA #: 10948916
mediumVEHICLE SPEED CONTROL,ENGINE
Filed: Jul 2016

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT 5 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE HESITATED BEFORE ACCELERATING. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THERE WERE METAL SHAVINGS IN THE OIL PAN. THE TECHNICIAN STATED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS PREVIOUSLY REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 15V568000 (ENGINE). THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 56,000.

NHTSA #: 10891641
mediumVEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
Filed: May 2016

HYUNDAI BREAK SWITCH, HYUNDAI BREAK LIGHTS, SUNROOF, AIR CONDITIONING BREAK SWITCH GONE OUT FOUR TIMES. TOOK TO SAVANNAH HYUNDAI TO BE FIXED. NO FIX AS CAR CONTINUALLY DOES NOT ACCELERATE IN THE MIDDLE OF NOWHERE - ON THE HIGHWAY OR WHEN GETTING READY TO PULL OUT IN FRONT OF TRAFFIC - VERY UNSAFE. I HAVE CONTACTED HYUNDAI CORP CONCERNING THIS ISSUE SINCE 2015. SAVANNAH HYUNDAI SERVICE MANAGER MIKE TOLD US THAT WE WERE NOT ALLOWED TO RETURN FOR REPAIRS BECAUSE THEY GOT FRUSTRATED TRYING TO FIGURE OUT. BREAK LIGHT NEVER WORKS. HAD THIS REPAIRED 3 TIMES. SAVANNAH HYUNDAI PUT NEW SUNROOF ON. FOUR MONTHS LATER IT WONT OPEN OR CLOSE. WE HAVE PAID FOR EVERYTHING OVER AND OVER AND OVER USING OUR EXTENDED WARRANTY AND COPAYS. EVEN IF HYUNDAI OR SAVANNAH HYUNDAI PREVIOUSLY FIXED SOMETHING AND IT WAS EVEN WITHIN 90 TO 120 DAYS THAT THE REPAIR WAS BAD, THEY NEVER OFFERED TO FIX WITHOUT CHARGE. ALWAYS MADE US REPAY FULL DEDUCTIBLE AND COSTS.. CAR DOES NOT TURN ON AIR CONDITIONING SYSTEM INTERMITTENTLY. TRIPS GET AWFULLY HOT. SOMETIMES STARTING UP CAR AND RESTARTING FIXES. SAVANNAH HYUNDAI NEVER ABLE TO FIX. SAVANNAH HYUNDAI HAS REPORTED ON TWO OCCASIONS THAT OUR CAR HAS SERIOUS ELECTRICAL ISSUES. THEY BELIEVE THIS IS RELATED TO SUNROOF AND BRAKE LIGHT. THIS CAR HAS BEEN HAVING ISSUES BEFORE 60,000 MILES AND STIL LHAS UNDER 90,000 AND SAME ISSUES REPEATEDLY. THIS CAR IS NOT SAFE!!!!!!!!!!!!!!!!!!!!!!!!!! CAR IS UNSAFE. CURRENTLY EMAILED DAVID ZUKOWSKI OF HYUNDAI, OTHER HYUNDAI OUTLETS, MESSAGE HYUNDA ON FB. UNRESOLVED.

NHTSA #: 10863981
mediumVEHICLE SPEED CONTROL,ENGINE
Filed: Apr 2016

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THAT THE SPEED AND RPMS WOULD FLUCTUATE INDEPENDENTLY WHILE DRIVING VARIOUS SPEEDS. THE FAILURE WAS INTERMITTENT. THE DEALER WAS UNABLE TO LOCATE THE CAUSE OF THE FAILURE. THE MANUFACTURER WAS NOTIFIED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 27,000.

NHTSA #: 10862064
mediumVEHICLE SPEED CONTROL
Filed: Mar 2016

CAR COULD NOT START WITHOUT PRESSING ACCELERATION PEDAL THIS MORNING (03/30/2016). AFTER PRESSING ACC PEDAL AND TURNING THE KEY ENGINE STARTED. IT REPEATED THE SAME WAY WHEN CAR WAS STARTED GOING TO HOME. ALTHOUGH, IT TOOK MUCH LONGER TO START THE ENGINE. DROVE HOME AND THEN TOOK KID TO SOCCER PRACTICE. ON TRAFFIC LIGHT, WHEN GREEN LIGHT WAS ON, I WAS TURNING RIGHT BUT CAR SUDDENLY ACCELERATED WITHOUT CONTROL. I MOVED GEAR TO NEUTRAL AND RPM PIKED TO AT 2500. I HAVE A VIDEO OF IT AFTER I STOPPED ON RED LIGHT. CAR HAS 71086 MILES AND IS IN "PREFECT" CONDITION. CHECK ENGINE LIGHT WAS ON FOR COUPLE OF DAYS BUT THERE WAS NO MIL CODE PRESENT. AFTER I TURNED THE ENGINE OFF AND THEN ON, CHECK ENGINE LIGHT WENT OFF AND NO CODES WERE PRESENT, NOT EVEN PENDING ONES.

NHTSA #: 10852590
mediumVEHICLE SPEED CONTROL
Filed: Mar 2016

CAR WAS NOT DRIVEN FOR 7 DAYS. FIRST DAY, ON A WAY TO WORK, CHECK ENGINE LIGHT WENT ON. ON A WAY HOME, AT GREEN TRAFFIC LIGHT, I WAS MAKING LEFT TURN, ACCELERATION PEDAL WAS PRESSED AND CAR ACCELERATED AS INTENDED BUT AFTER HALF A SECOND ACCELERATION PEDAL STOPPED WORKING AND CAR SLOWLY MOVED FORWARD ONLY BY INERTIA. ACCELERATION PEDAL WAS NON FUNCTIONAL, AND ENGINE WAS RUNNING AT IDLE. I WAS ABLE TO SAFELY STOP THE VEHICLE ON A STOP LANE, PAST INTERSECTION, WITH ENGINE STILL RUNNING AND NON-FUNCTIONAL ACCELERATION PEDAL. THEN, I SHUT OFF THE ENGINE AND STARTED IT AGAIN. ACCELERATION PEDAL WAS WORKING WITHOUT PROBLEM. MIL CODES WERE: P2135 P0221, P2106, P0121 AND P2110. TOOK IT TO THE HYUNDAI DEALERSHIP IN NEW HUDSON, MI WHERE SOME INCOMPETENT MECHANIC COULD NOT EVEN DIAGNOSE WHAT WAS THE CAUSE BLAMING THE CAR BATTERY. CAR BATTERY IS HOLDING CHARGE, CURRENTLY AT 12.4V AND ALTERANTOR IS CHARGING BATTERY WITH 14.2-14.4V. CAR STARTS WITHOUT ANY PROBLEM AND HESITATION. THERE WERE NO CARS COMING FROM OPPOSITE DIRECTION AT INTERSECTION SO WE WERE NOT IN IMMINENT DANGER WHEN ACCELERATION PEDAL LOST CONTROL.

NHTSA #: 10846204
mediumVEHICLE SPEED CONTROL
CrashFiled: Feb 2016

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE LUNGED FORWARD WITHOUT WARNING, CONTINUED TO ACCELERATE, AND CRASHED INTO A POWER POLE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE AND STATED THAT THE VEHICLE WAS WORKING UP TO SPECIFICATIONS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 53,000. UPDATED 04/13/16*LJ UPDATED CONSUMER STATED ON 1/31/16 DROVE TO CHURCH PULLED INTO PARKING SPOT WHILE BRAKING SLOWLY AND STOPPING WHEN CAT LURCHED OVER CURB AND SPED ACROSS CHURCH LOT HITTING 2 SIGNS AND ELECTRIC POLE BEFORE STOPPING- IN SEPT 2015- IT LUNGED AND TOOK IT TO DEALER TO HAVE OIL CHANGED AND HAD THEM OK THE PROBLEM- DEALER SAID NOTHING WAS ON WRONG. ON 10/15 WHEN PARKING CAR LUNGED AGAIN AND HIT A TREE- CONSUMER DID NOTHING, CONSUMER FIXED THE CAR HERSELF BECAUSE DEALER WOULD NOT ADMIT THERE WAS A PROBLEM. UPDATED 06/05/18*JB

NHTSA #: 10837681
mediumVEHICLE SPEED CONTROL
Filed: Jan 2016

2012 HYUNDAI SONATA LIMITED 2.0T CAR LOOSES BOOST WHEN STARTED AFTER BEING LEFT UNUSED OVERNIGHT OR COLD WEATHER. 8500 MILES. APPARENTLY, THE WASTEGATE IS STAYING OPEN. I GIVE IT GAS AND THE ACCELERATION STAYS FLAT LIKE ITS ALL ENGINE. THIS USUALLY HAPPENS WHEN BEING IN A RAMP TO ENTER THE HIGHWAY. THE CAR ACCELERATION GOES FLAT AND REVOLUTIONS GO UP TO 5000 TO 6000. CAR STAYS AT 50-6-MPH. CAR WENT TO THE DEALER FOR 5 DAYS AND GAVE IT BACK BECAUSE THEY DIDN'T FIND ANYTHING. TOLD THEM ABOUT THE WASTEGATE ACTUATOR SENSOR BUT NO RESPONSE. WHEN LOOKING IN THE INTERNET ABOUT THIS ISSUE, THERE IS A PAGE HTTP://WWW.CARGURUS.COM/CARS/DISCUSSION-T41526_DS522751 WHERE MANY PEOPLE ARE COMPLAINING ABOUT THE SAME ISSUE AND, THE PROBLEM IS, THAT THE CAR DOESN'T LIT THE "CHECK ENGINE" LIGHT SO THE DEALER CANNOT SCAN THE PROBLEM. THIS IS A VERY DANGEROUS SAFETY ISSUE BECAUSE YOU MIGHT GET RUN OVER BY A TRUCK WHEN GOING IN THE HIGHWAY.

NHTSA #: 10821940
mediumVEHICLE SPEED CONTROL
CrashFiled: Jan 2016

EMAIL LETTER FROM CONSUMER TO THE ADMINISTRATOR RE HYUNDAI'S FLOUTING OF THEIR AGREEMENT WITH NHTSA BY REFUSING TO HONOR THE SONATA RECALL FOR SUDDEN UNINTENDED ACCELERATION. *SMD THE CONSUMER HAD PLACED THE VEHICLE INTO PARK, WITH HER FOOT FIRMLY ON THE BRAKE, WHEN SUDDENLY THE VEHICLE VIOLENTLY LURCHED FORWARD AT SIGNIFICANT SPEED AND HIT AND BROKE A SPLIT-RAIL FENCE AND POST. *JB

NHTSA #: 10838282
mediumVEHICLE SPEED CONTROL
Filed: Jan 2016

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE IDLED, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE HESITATED TO ACCELERATE. IN ADDITION, THE VEHICLE LUNGED FORWARD AND THE CONTACT WAS ABLE TO AVOID A COLLISION. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT AN ECU UPGRADE NEEDED TO BE PERFORMED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 42,800.

NHTSA #: 10817720
mediumVEHICLE SPEED CONTROL
Filed: Oct 2015

CRUISE CONTROL WILL NOT SET, ACCEL, OR CANCEL INTERMITTENTLY WITH DAILY USE OF THE CAR. IT WORKS USUALLY WHEN YOU FIRST START DRIVING THE CAR BUT NOT ALWAYS. THE CANCEL BUTTON RARELY WORKS AT ALL AND THERE HAVE BEEN INSTANCES WHEN THE ONLY WAY I COULD CANCEL CRUISE CONTROL WAS BY HITTING THE BRAKE PEDAL. SEVERAL NEAR COLLISIONS BECAUSE OF THE FAILURE OF THE SWITCHES ON THE STEERING WHEEL WORKING. I'VE TAKEN IT TO THE DEALER REPEATEDLY TO HAVE IT REPAIRED AND THEY SAY THEY CAN'T DUPLICATE THE PROBLEM. I BOUGHT THE CAR NEW AND JUST RECENTLY HAD IT AT THE DEALERSHIP AGAIN AND NOW THEY SAY THEY WON'T COVER IT UNDER WARRANTY AND THAT IT WOULD BE CUSTOMER PAY. HYUNDAI HAS A DATABASE SHOWING WHEN I'VE HAD IT IN TO BE LOOKED AT. TODAY'S VISIT WAS AT ROSEVILLE HYUNDAI IN ROSEVILLE, CA (916) 677-3636 SERVICE ADVISOR 7713 CALDEN, CHRISTOPHER. OCTOBER 17, 2015 WORK ORDER 146002

NHTSA #: 10783105
mediumVEHICLE SPEED CONTROL,ENGINE
Filed: Mar 2015

WHEN ATTEMPTING TO ACCELERATE THE VEHICLE TO GET ONTO THE FREEWAY THE ENGINE LOST ALL POWER. THIS INCIDENT HAS HAPPENED MULTIPLE TIMES ON MULTIPLE OCCASIONS, EACH TIME HYUNDAI AND THE DEALERSHIP HAVE FAILED TO IDENTIFY AND FIX THE PROBLEM. EACH POWER FAILURE EVENT HAS BEEN A NEAR ACCIDENT. I AM CONCERNED FOR THE MY PASSENGERS AND MY OWN SAFETY. THE VEHICLE HAS RECEIVED ALL REGULAR MAINTENANCE, OIL CHANGES AND RECALLS. A CASE HAS BEEN OPENED WITH HYUNDAI CUSTOMER SUPPORT. *TR

NHTSA #: 10691536
mediumVEHICLE SPEED CONTROL
Filed: Sep 2014

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED WHILE DRIVING 55 MPH WITH THE CRUISE CONTROL ACTIVATED, THE CANCEL CRUISE CONTROL BUTTON WAS PRESSED BUT THE VEHICLE FAILED TO STOP. THE CONTACT HAD TO APPLY THE BRAKES IN ORDER TO DISENGAGE THE CRUISE CONTROL. THE PROBLEM RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO A DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 22,425. ..UPDATED 10/21/14 *BF THE CONSUMER STATED THE VEHICLE WAS REPAIRED. THE CRUISE CONTROL MODULE WAS REPLACED. UPDATED 7/15/2015*JS

NHTSA #: 10639079
mediumVEHICLE SPEED CONTROL
Filed: Sep 2014

BOUGHT A BRAND NEW 2012 SONATA A COUPLE OF YEARS AGO, AND THE ENGINE SERVICE LIGHT WAS ILLUMINATED LAST SATURDAY MORNING AFTER I TRIED THREE TIMES TO START THE CAR. ON HIGHWAY I HAD TROUBLE REACHING 45 MPH, THE LOWEST SPEED LIMIT. IT'S CAUSED BY LOW FUEL PRESSURE. I DID SOME ONLINE SEARCHING AND FOUND THAT SONATA 2006 HAD THE RECALL OF FUEL PUMP FAILED PREMATURELY. I CAN NOT BELIEVE THE SAME ISSUE IS HAPPENING TO THEIR 2012 ONES. AM I THE ONLY ONE WHO HAVE THIS PROBLEM WITH 2012 SONATA? THIS PARTICULAR ISSUE IS NOT COVERED UNDER WARRANTY. I CALLED THE DEALER AND MADE AN APPOINTMENT A WEEK AWAY. OBVIOUSLY THEY HAVE LOTS OF CARS TO SERVICE. IRONICALLY, I JUST RECEIVED THEIR RECALL LETTER ON 2012 SONATA FOR THEIR "INABILITY TO PLACE THE TRANSAXLE INTO THE PARK POSITION". HAVE TO RENT A CAR BECAUSE MINE MIGHT GET STRANDED ANYWHERE AT ANY TIME. WORST-CASE SCENARIO: REAR-ENDED BY CARS THAT ARE DRIVING AT A PERFECTLY NORMAL SPEED. *TR

NHTSA #: 10633591
mediumVEHICLE SPEED CONTROL,SERVICE BRAKES,ENGINE
Filed: Apr 2014

WHEN I APPLIED BREAK MY RPM IDLE GOES UP. I DON'T KNOW IF THAT IS SAFE I SHOW IN OTHER CAR RPM GOES DOWN. I TOOK TO DEALER GOT OIL CHANGE. AND I ASKED WHY THIS HAPPENS. HE TOLD ME TO CHACK ECO SYSTEM. I CHACK ECO SYSTEM IT WAS ON OFF POSTION. I ASK HIM WHEN I BOUGHT CAR I NEVER SHOW RPM GO UP WHEN I HATE BREAK. THERE NO ENGINE SING COMESUP ON DASHBOARD EITHER. THIS REALLY SAFETY CONCERN FOR MY FAMILY. RPM SHOULD NOT GO UP WHEN U HATE BREAKS. IT'S SHOULD BRING RPM DOWN. RPM SHOULD GO UP WHEN U HATE GAS PADEL. I GET THIS. BUT WHEN I GO TO ANY SPEED. AND TRIED TO APPLIED BREAK IT SHOULD DROP RPM SHOULD NOT GO UP.

NHTSA #: 10583362
mediumVEHICLE SPEED CONTROL
CrashFiled: Jan 2014

I HAD JUST PULLED INTO A SMALL RURAL PARKING LOT AND PARKED FACING A WOOD FENCE IN THE AFTERNOON. I HAD MY FOOT ON THE BRAKE AND PUT THE CAR INTO PARK. THE CAR SUDDENLY LURCHED FORWARD ABOUT TEN FEET, KNOCKING OVER A WOOD FENCE POST AND INCURRING $3,000 DAMAGE TO THE CAR. I STILL HAD MY FOOT ON THE BRAKE, AND SLAMMED IT INSTANTLY AS THE CAR LURCHED. FORTUNATELY, NO PERSON WAS WALKING ALONG THE SIDEWALK, AND I HAD MY SEAT BELT IN PLACE. I INSISTED THE CAR BE TOWED TO THE NEAREST HYUNDAI DEALER RATHER THAN TO A LOCAL REPAIR SHOP, SINCE I WANTED TO FIND THE CAUSE OF THIS ACCELERATION MALFUNCTION. THE DEALER SAID THEY FOUND NOTHING WRONG, OTHER THAN THE FRONT END DAMAGE. I INSISTED THAT HYUNDAI NATIONAL SEND OUT AN ENGINEER TO CHECK THE CAR. I HAVE ALSO FOUND A REPORT ON THE INTERNET FROM KMOV.COM NEWS IN ST. LOUIS 2/28/13, THAT THREE LOCAL OWNERS THERE EXPERIENCED SUDDEN UNINTENDED ACCELERATION. THE CASE DETAILED IN THE NEWS REPORT WAS EXACTLY LIKE MY EXPERIENCE OF SUDDEN LURCHING ACCELERATION FROM A PARKED POSITION, BUT THE HYUNDAI ENGINEER REPORTED NOTHING WAS WRONG. HOWEVER, OUR EXPERIENCE DOCUMENTS AN UNINTENDED ACCELERATION PROBLEM UNRELATED TO DRIVER ERROR. I HAVE TOLD HYUNDAI THAT I WILL ABSOLUTELY NOT CONTINUE TO DRIVE THIS CAR.

NHTSA #: 10560988
mediumVEHICLE SPEED CONTROL
Filed: Sep 2013

CAR IN PARK, KEY IN IGNITION-MOTORIDLING--WIFE AND I AWAITING TO BOARD FERRY CAR SUDDENLY REVVED VERY HIGH WITH TACH OVER 5--CHECKED CAR WAS IN PARK NO OBSTRUCTION (MAT ETC..) OR FOOT TOUCHING GAS PEDAL--KILLED IGNITION TO STOP UNCONTROLLED REVVING OF ENGINE. FOUR WITNESSES TI INCIDENT--TWO IN CAR, TWO STANDING NEXT TO VEHICLE. CALLED DEALER IMMED AND MADE APPOINTMENT TO HAVE CAR CHECKED---FIRST UNCONTROLLED INCIDENT ON CRUISE CONTROL APRIL OF 2013, SECOND SUDDEN INCREASE AUGUST 5TH 2013 AGAIN ON CRUISE CONTROL--DEALER FOUND BRAKE SWITCH PROBLEM AFTER 8-05-13 SUDDEN SURGE BUT CLAIMS "CAN"T REPLICATE ADDITIONAL SURGES.. CRUISE CONTROL USED ON WAY TO FERRY. CAR TAKEN TO DEALER 8-26-13 AGAIN THEY CAN'T REPLICATE. OCCURS WHEN IN CRUISE CONTROL MORE THAN 20-30 MIN. OR MORE--PERHAPS WIRING OR MODULES HEATING UP--DEALER NO HELP!!!!!! *TR

NHTSA #: 10543116
mediumVEHICLE SPEED CONTROL
Filed: Jun 2013

THE CRUISE CONTROL FAILS TO ENGAGE EVERY TIME YOU PRESS IT. SOMETIMES IT WORKS, SOMETIMES IT DOESN'T. DEALER REPLACED THE SWITCH SAYING IT WAS BAD. PROBLEM PERSISTED SO I TOOK IT BACK IN. THEY CANNOT REPLICATE IT SINCE IT IS INTERMITTENT THEREFORE I CANNOT GET THIS FIXED. *TR

NHTSA #: 10514837
mediumVEHICLE SPEED CONTROL,EQUIPMENT
Filed: Feb 2013

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE AT A COMPLETE STOP, THE VEHICLE SUDDENLY ACCELERATED. THE CONTACT MENTIONED THAT IN ORDER TO MAINTAIN CONTROL OF THE VEHICLE, HE ENGAGED THE BRAKES AND SHIFTED INTO NEUTRAL. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THEY WOULD CONTACT HIM AT A LATER DATE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 18,000. N UPDATED 4/24/13 *CN THE CONSUMER STATED THE FAILURE COULD NOT BE DUPLICATED. THE CONSUMER TRADED THE VEHICLE IN. THE MANUFACTURER REQUESTED THE VEHICLE BE HELD FOR FURTHER INSPECTION. THE VEHICLE WOULD, INTERMITTENTLY, NOT SHIFT INTO SECOND GEAR. THE AIR CONDITION MALFUNCTIONED. UPDATED 06/05/2013 *JS

NHTSA #: 10500507
mediumVEHICLE SPEED CONTROL
Filed: Sep 2012

MY 2012 HYUNDAI SONATA TURBO HAS THE FOLLOWING PERSISTENT ISSUE. WHEN THE VEHICLE SITS OVER NIGHT, IN COOL WEATHER CONDITIONS OF ABOUT 60 DEGREES AND/OR LOWER, UPON FIRST START IN THE MORNING IT WILL NOT REV PAST 4000 RPM (WHILE DRIVING) AND AS A RESULT IT DOESN'T HAVE THE POWER TO MERGE ONTO THE HIGHWAY IN A MANNER THAT I WOULD CONSIDER SAFELY. I KNOW OF A TECHNICAL SERVICE BULLETIN THAT HYUNDAI HAS RELEASED THAT'S SUPPOSE TO RESOLVE THIS ISSUE HOWEVER, I ALSO HAVE KNOWLEDGE OF ABOUT 10 VEHICLES WITH THIS SAME ISSUE, SOME THE ISSUE PERSISTED EVEN AFTER THE DEALER CLAIMED TO HAVE REPAIRED IT. WHAT I CONSIDER THE MAIN SAFETY ISSUE TO BE IS; THERE IS NO INDICATION/ALERT WITHIN THE VEHICLE'S DASHBOARD ILLUSTRATING THE ISSUE AFFECTING THE ACCELERATION/PERFORMANCE. MY VEHICLE HAS NORMAL POWER CITY STREETS OR AT ABOUT 30 MPH OR LESS. I DISCOVERED THE ISSUE WHEN TRYING TO MERGE ONTO A HIGHWAY, DUE TO LACK OF ACCELERATION POWER (WHICH MY VEHICLE SHOULD/DID HAVE), I WAS NEARLY REAR-ENDED BY A 18 WHEELER AS I WAS TRYING TO GET UP TO HIGHWAY SPEED. THIS IS A HUGE SAFETY ISSUE. NO CHECK ENGINE LIGHT HAS EVER TURNED ON. MY VEHICLE HAS NEVER BEEN IN AN ACCIDENT AND HAS ABOUT 13,000 MILES ON IT NOW. I WOULD GREATLY APPRECIATE YOUR ATTENTION ON THIS HAZARDOUS MATTER. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA #: 10477225
mediumVEHICLE SPEED CONTROL
Filed: Aug 2012

I WAS DRIVING DOWN A HILL THAT WAS NOT VERY STEEP, IN GOOD WEATHER, WITH CRUISE CONTROL ON AT 60 MPH. AS THE CAR WENT DOWN THE HILL, THE SPEED INCREASED TO 80,AT WHICH POINT IN TIME I USED MY BRAKE TO SLOW DOWN. THE SAME THING HAS HAPPENED ON NUMEROUS OCCASIONS WITH ME ALONE AND WITH OTHERS IN THE CAR, INCLUDING A STAFF MEMBER OF THE DEALERSHIP, WHO TOLD ME THAT THIS WAS NORMAL BEHAVIOR FOR A HYUNDAI SONATA AND FOR THE CRUISE CONTROL ON HIS OWN VEHICLE. IF I CANCEL CRUISE CONTROL IN THE MIDDLE OF A HILL, SPEED DECREASES OR HOLDS STEADY --IT DOES NOT ACCELERATE. *TR

NHTSA #: 10470060
mediumVEHICLE SPEED CONTROL
CrashFiled: May 2012

TL* THE CONTACT OWNS 2012 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING 2 MPH, HE APPLIED SLIGHT PRESSURE TO THE ACCELERATOR PEDAL AND THE VEHICLE SURGED FORWARD. THE VEHICLE CRASHED INTO THE WALL OF A GARAGE AS A RESULT. THERE WERE NO INJURIES. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE VEHICLE WAS TOWED TO A REPAIR SHOP FOR INSPECTION BUT THE FAILURE WAS UNKNOWN AT THE MOMENT. THE VEHICLE WAS BEING REPAIRED. THE FAILURE MILEAGE WAS 4,500. UPDATED 07/13/12 *BF

NHTSA #: 10458935
mediumVEHICLE SPEED CONTROL
Filed: Jan 2012

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THAT WHEN DEPRESSING THE ACCELERATOR PEDAL, HIS FOOT WOULD SWELL, CAUSING HIM TO PAY LESS ATTENTION TO THE ROAD. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THEY ADVISED HIM THAT THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS CONTACTED AND THEY OFFERED NO ASSISTANCE. THE CONTACT ONLY EXPERIENCED THIS PROBLEM WHILE DRIVING HIS VEHICLE. THE FAILURE MILEAGE WAS APPROXIMATELY 30. THE VIN WAS UNAVAILABLE.

NHTSA #: 10444386

Other 2012 Hyundai Sonata Issues