2021 Honda Pilot Electrical Problems

The following warning lights: adaptive cruise control problem, lane keeping assist, collision mitigation system, road departure mitigation problem, auto high beam problem

The auto-idle feature on this vehicle stalls out the engine on a regular basis, causing risk of accident from surrounding traffic. When breaks applied for red light, stop sign, traffic, etc., the auto-idle feature first engages and powers down the engine, however upon releasing the breaks, the engine stalls out, shifts into neutral, and the battery light comes on.

While driving on the freeway at a slow speed due to two freeways merging, my Honda Pilot suddenly stopped/stalled. When I tried to restart the car by pressing the Auto Idle Stop button to vehicle did not start. It took three times of pressing the Auto Idle Stop button for the engine to restart.

I have two issues. First issue is the car will hit an intermediately not start once shut off and will take a few times of making sure the car is completely shut off opening your doors letting it power down before being able to restart. The next issue is the forward collision notification will randomly beep at every car that goes by specifically white cars.

My 2021 Honda Pilot SE has developed a failure of the forward-facing Multipurpose Camera Unit (mounted behind the rearview mirror).

All I did was simply change my battery. Up until this point the car had run perfect and no issues or warnings. Now after placing the correct AGM battery the dash has lit up like Christmas.

The camera in the windshield used for collision mitigation, cruise control, lane keep assist, auto high beams, etc. has been found to have gone bad and need replaced by the Honda service center near me. The dashboard indicates all of these issues and disables the use of these safety features.

While driving the CMBS (crash mitigation braking system) turns on at random timed intervals causing sudden breaking and jerking of the steering wheel towards center. This causes severe safety issues including increasing the chances of a wreck due to wheel jerk movements during turning and sudden breaking.

No FIRENo INJURIES0 DEATHS0 The collision mitigation braking system problem, adaptive cruise control problem, lane keeping assist problem, road departure mitigation system problem and auto high-beam problem. All these are keep showing on my dashboard. It is stated that this is the Multi Point Camera RADAR avg cost repair 2000.OO

This seems to be an on going problem for many Honda owners according to the forums. My Adaptive Cruise Control, lane keeping assistant, collision mitigation, road departure mitigation, and auto high beams have all gone out after going to the car wash. I have cleaned the windshield but I find it crazy that this is a common problem and there is no recall.

The side curtain airbags deployed while I was sitting in the passenger's side of the car looking into the glove compartment for about ten minutes with the car being completely off and parked in the driveway. The Ignition was off and there was glitching and clicking sounds seconds before the airbags deployed. This could have happened at any point while driving on the street or the freeway.

My push start is not starting the car. Then while driving the car will shut off on parkway, at a light and won't start. This has been going on since I purchased the vehicle 9/23 I have warranty and th auto dealership keep acting like they fixed it yet the haven't.

Brake system light on, Adaptive Cruise Control problem and Road Departure mitigation system problem error messages. Brakes light turn on randomly, even when car is off. This intermittently causes issues with acceleration pedal not responding while driving as well as being able to start vehicle without depressing brake pedal which is a major danger if kids are inside and pushes the button.

Vehicle spontaneously caught fire. There were no known/indicated issues with the vehicle. Vehicle was eventually extinguished by the fire dept.

I have a 2021 Elite and have been experiencing issues with the Auto Engine Idle Shut Off for the past year. The engine with shuts off normally when I come to a stop when I have the system engaged. The problems begin when I take my foot off the brake expecting the engine to start up again.

ACC, LKAS, collision mitigation system problem, road departure mitigation system, and auto high beam problem warnings all appear on instrument panel. None of these systems work. Have replaced battery and problem not fixed.

This is regarding the MOST FAKRA Service Cables Safety Recall which affects the display in my car. It started off with the radio cutting out but has progressed to the display not working which affects the rear camera. I believe this is extremely dangerous.

I was driving my Pilot and came to a stop during stop and go traffic on a highway. Normally the auto stop/start feature would stop the engine and start it again when I released the brake, but at this stop the vehicle stopped the engine and lost all power. The car went completely dead.

The car shuts down when coming to an idle such while stopping at a light. All systems are powered down including the hazard lights, front and tail lights and windows. The car has so far restarted after multiple attempts at the start button.

With the auto idle feature engaged (disengaging requires manually turning off the system with each vehicle start) while at a stop light the auto idle feature shut the engine off. Typically, when you release the brake the car start back up and you can begin to accelerate.

Auto braking applies randomly cause brakes to lock up happens when driving in any conditions. This problem has already caused a minor accident with my vehicle due to brakes locking up and no throttle

Your car's auto idle stop feature activated at a red light, and when you lifted your foot off the brake, the engine stalled unexpectedly. The car shifted into Park and wouldn't respond to shifting into Neutral or Drive. Your dashboard and controls became unresponsive — the radio volume wouldn't adjust and the ignition button didn't work immediately. After finally turning off the car, it struggled to start when you tried to restart it, and the battery warning light was on. This electrical issue may require diagnostic testing to identify the root cause affecting your engine, transmission, and electrical systems.

Your car's electrical system is malfunctioning, causing all electrical components—including lights—to repeatedly flash on and off. This happens mostly when the car is parked and unattended, and the vehicle may turn itself on and off rapidly. The owner is concerned this could potentially cause an electrical fire. The issue has persisted for 2 years and is no longer covered by warranty.

Your car's auto idle stop feature caused the engine to stall while stopped at a red light, leaving you unable to move. When you tried to restart the engine, it wouldn't start immediately and required two restart attempts before the car would run again. This issue may involve diagnosing the idle stop system, battery, or starter motor.

The infotainment system screen would simply not illuminate when the car is started. Also the auto engine shut off, chooses not to restart the engine when your foot is removed from the break peddle.

Wife was driving car and it stalled when slowing down for a red light. No check engine light or dash warning notices. Car then displayed instructions to restart the car Tried to restart 4 or 5 times.

Car is slow to start or doesn't start at all, particularly after frequent engine stops/starts or when engine has idled for a period of time. Battery has been replaced. Symptom comes and goes, but seems to get worse with frequent engine stops/starts (I.e., driving to different locations with short stays at each, or with the automatic engine shut off)

The contact owns a 2021 Honda Pilot. The contact stated that while at a complete stop with the START/STOP feature activated, the engine shut off while depressing the accelerator pedal. There was no warning light illuminated.

The Auto Idle Stop (AIS) feature on my 2021 Honda Pilot intermittently causes the engine to shut off at a stop and fail to restart. When this happens the vehicle remains completely unresponsive until I shift into Park and manually restart the engine.This has happened multiple times in traffic and at intersections, creating a huge safety risk.

The contact owns a 2021 Honda Pilot. The contact stated that the idle STOP/START system suddenly activated while idling at a stop sign, stop light, and driving at slower speeds of approximately 5 MPH. The vehicle stalled while the failure occurred, causing the contact to make several attempts to restart the vehicle.

I have had numerous issues with the car stalling while in idle- it will shut off but still display all the warning lights on the dash. It would require the car engine to be restarted. Has happened at stop signs, stop lights, carpool lights.

When going from stop light, car died in middle of intersection. Couldn’t get it started. Had it towed to dealership.Dealer did diagnostics and couldn’t find any issue.

Last week the the security alarm went off for no reason. The following day, I arrived to work and parked my car. 45 minutes later, I am notified my headlights were on.

Auto restart stalls the car when reengaging the engine after coming to a full stop

The car engine autorestart causes all sorts of problems. We have repeatedly had the warning come on and the engine stop while at a light or paused in moving traffic. We have replaced the battery and other parts.

The contact owns a 2021 Honda Pilot. The contact stated that the infotainment screen and the rearview camera screen intermittently failed to activate while the vehicle was shifted into reverse. The vehicle was taken to the local dealer, and the contact was informed that the VIN was not included in NHTSA Campaign Number: 23V431000 (Back Over Prevention).

While stopped at an intersection, the car died, the transmission shifted to neutral automatically and the radio would not turn on. The AGM battery was replaced approximately one year ago when a similar situation took place.

The contact owns a 2021 Honda Pilot. The contact stated that the vehicle was repaired under NHTSA Campaign Numbers: 23V174000 (VISIBILITY), 24V064000 (AIR BAGS), and under TSB: 0101T0. The contact stated that the dealer did not repair all the recalls.

Component inspected by Honda dealer It’s the forward camera it has already malfunctioned and no longer works I only have 62,000 miles on my pilot. This seems excessive there is definitely a defect in these vehicles. The incident is the warning lights that came up and no longer worked

The front camera which controls all of the safety features went out! 1 week ago. It has been confirmed and I am now having to pay almost $2700.00 to have it fixed.

Vehicle: 2021 Honda Pilot VIN: [XXX] Complaint: My 2021 Honda Pilot continues to have the same issues described in NHTSA Recall 23V-431 (backup camera / infotainment coaxial cable defect). The recall was marked “completed” about two years ago, but the safety problem persists.

The contact owns a 2021 Honda Pilot. The contact stated that after coming to a complete stop, the START/STOP function activated and turned the vehicle off; however, while attempting to drive from the stop, the engine failed to restart. After waiting 5-10 minutes, the vehicle was able to restart and returned to normal functionality, but the failure became a regular occurrence.

The contact owns a 2021 Honda Pilot. The contact stated that while temporarily stopped at a traffic light or a stop sign, the vehicle occasionally shifted into neutral, or the vehicle shut off unintendedly. There was no warning light illuminated.

The BCM body control module is not working. My wife is scared to drive thinking it can turn on lights wipers and other components. For being a Farley new car it’s crazy to think it’s defected.

Vehicle when trying to start locks up, have had the battery alternator starter checked, changed the brake switch and still having issues with hard start to my 2021 Honda Pilot. When this happens all the lights come on. I push the Idle/Start switch when I do get it started so that it does shut off when I’m at a red light or stop sign.

The contact owns a 2021 Honda Pilot. The contact stated that after idling at a red light, the Auto Start failed to operate as designed. The contact had to shift to park(P), and several attempts were needed to restart the vehicle before the contact was able to continue driving.

Engines sometimes fails to start again after being turned off briefly. Will have so turn off all electrical and push button to start multiple times before it engine starts again

After contacting the dealer several times, I’ve been told the parts for the recall are unavailable and it has been more than 6 months. The recall is over air bags that may not deploy correctly. Additionally, the electrical panel is periodically going out, the electrical on the seat isn’t working, and the car charger isn’t working.

Autostart failed several times then starter ultimately failed. Taken to dealer and repaired at my cost.

The sensors stopped working when the infotainment screen went out. It goes out all the time. Honda knows of this issue but does nothing to repair.

Audio and backup camera panel popping noise and disconnects whole panel causing it to go black , which includes the backup camera. Extreme safety issue with no backup camera .

Our vehicle continues to randomly turn off and not go while driving. Whenever the idle start/stop is engaged, the vehicle will randomly not restart when traffic is moving. When this occurs you must completely turn off the vehicle, wait a few seconds, restart the vehicle, wait a few seconds, then attempt to place back into drive before being able to move.

1) Recall 2020-22 multi-model seat weight sensor safety recall. Called since February 2024 when it was posted. I called the dealership and was told that I will received a postcard by mail.

The truck lights came on, with no reason, ACC and LKAS dealer wants to charge 200 just to diagnose, I keep hearing many have thir problem, honda needs to fix this problem that they know they have.

The contact owns a 2021 Honda Pilot. The contact stated while driving approximately 55 MPH, the contact stated that several unknown warning lights started flashing. The contact stated that the Cruise Control and the Lane Departure and Lane Assist were inoperable.

The battery has gone bad twice (second replacement only took nine months) since an update was applied to the auto engine restart function. The car will work for some amount of time after the battery is replaced and then begin to not restart (shut off) at a light after the auto engine shutoff is engaged from the brake. It progressively gets worse until we replace the battery.

Problem Dealer said recall for airbags risk/ seat sensor cannot be fixed due to unable to get parts.

The contact owns a 2021 Honda Pilot. The contact stated that while the idle stop system was deactivated, while idling at a stop light the vehicle suddenly turned off after releasing the brake pedal and shifted into neutral. The vehicle was eventually restarted and operated normally.

When I’m stopped and try to drive my car it sometimes dies. It’s a big safety concern and happens often and when I have my kids in the car. I can’t get it to start again for a little while.

There appear to be more than one issue. When using the auto idle feature, my car will turn off completely. Meaning the engine turns off and it is difficult to restart.

The contact owns a 2021 Honda Pilot. The contact stated that the Auto Idle feature on the vehicle intermittently failed to operate as needed. The contact stated that the vehicle failed to restart upon the depression of the accelerator pedal.

The contact owns a 2021 Honda Pilot. The contact stated that the information center was not connecting. There were no warning lights illuminated.

Audio system popping noise affecting the dashboard system and audio system not working loss of power controls to use any of the systems digital components including speed control backup camera entire audio system

2021 Honda Pilot Black Edition with 37,007 miles. Navigation screen will display "Network Communication Lost" and "MOST Net Off" before completely shutting down for 5-10 minutes at a time, only to do the same thing after resetting.

There is speaker cracking noise and monitor goes black when using navigation. This is distracting and dangerous do to myself as a driver and others. It is distracting and concerning that a new vehicle goes crazy and Honda has no idea how to fix this.

My 2021 Honda Pilot's Idle-Stop System has been failing at random and dangerous times. The engine shuts off when Idle-Stop is engaged and as expected. However and until recently; when I release my foot from the break, nothing happens.

My car, a 2021 Honda Pilot, has a feature called "Idle-Stop" where the engine stops when the break is depressed, when the break is released, the engine is supposed to start back up. Twice in the past week, while at an intersection, the Idle-Stop has engaged, stopping the engine, but failed to start the engine back up.

When the automatic engine shut-off is engaged during traffic stops, sometimes the power to the vehicle shuts off. It can happen at stop signs with out warning. The vehicle usually powers back up in Park.

New car battery and car died while waiting at a light. The vehicle idle/stop system kicked in but car was not able to restart. While lights were still available on dashboard, the emergency hazards would not show nor could I put the car in neutral.

The car's automatic engine shut-off feature when stopped at a red light failed to reengaged after removing foot from break the car shut down and the transmission button shifted into neutral and displayed a message that you must put your foot on the brake and shift the car to Park. The battery indicator light was flashing and everything turned off in the car.

Our Pilot is brand new - we started noticing popping and cracking sounds from the dashboard. It is pretty loud. We thought it was possibly the radio but it continues with the radio off.

The contact owns a 2021 Honda Pilot. The contact stated while driving 30 MPH, he noticed that several warning lights illuminated and remained illuminated. The contact continued driving to his residence.

Loud popping and crackling noise emitting from speakers. Cannot turn them off, and causes major interruptions in navigation, radio, entertainment. Dealer said Falkra wiring is faulty, but is back-ordered, and could not even give us an estimate of when it would arrive.

There is an issue with the electrical system in this car. The radio has intermittent static on any station and hands free calls drop after a short period. I have Googled this and it is a very common complaint on this type/year vehicle.

The dash crackles sometimes a little and other times it crackles constantly all across the dash. If the radio is playing, it interferes with the radio or using the Bluetooth. At first it seemed like something hit the windshield and now it's worse and crackles all the time.

While driving for about an hour on the freeway the sound to my bluetooth audio quit. Then the apple carplay would not connect. When I got to the grocery store tryin to maneaver into a parking spot the backup camera did not work when I put in reverse.

We were driving our 2019 Honda Pilot and at a traffic light the car failed to restart after the auto stop-start system shut off the engine. This happened when I started to step on the gas so we could have been rear-ended by the car behind us. The brakes also appeared stuck when I tried to depress them so I could restart the car.

Car does not want to start even though the batter and alternator are good (tested by tow truck company). Restarts fine once batter is disconnected and then reconnected again. This has now happened twice.

Honda’s Auto Idle Stop system shuts vehicle off when at a full stop and fails to restart after removing foot from the brake. Instead, when you remove your foot off the brake, the vehicle switches to neutral or park and does not restart despite following on screen instructions to restart (Example: switch to park, put foot on the brake, and press start button).

rearview camera images ot appear on the dashboard screen

When stopped at a stop light the auto idle stop turned the car off. When we tried to go at the green light the car wouldn't move. The transmission shifted to neutral and was stuck.

My 2021 Honda Pilot SE FWD would not restart after the auto off/on turned my engine off at a stop light. Of course this happened at a busy intersection causing backup and an unsafe environment to get out and inspect the vehicle. The car had to be jump started by a kind individual.

screen stopped working suddenly. will randomly flash bright blue or a gray static, then go back to black.

Auto start/stop feature turned off the engine at a stoplight. When the light turned green and the brake pedal was released, the engine did not restart. There also appeared to be some sort of electrical malfunction since the start stop button would not turn off the ignition system in an attempt to reset the vehicle.

The car on multiple occasions (4 separate incidents) after stopping at a red light or stop sign and the auto stop system stopped the engine, once the brake pressure is released, the car would auto start then immediately shift into neutral and completely shut off (engine, electrical, etc). Driver would have to coast/stop at side of road and turn car off and on again.

Starter bad

None of the safety sensors were working.

While driving at freeway speed the gauge cluster including speedometer, gear selection, and navigation system shut off. The speedometer area was blank and the navigation screen said "network connection lost" No MOST network. It began to come back on a minute or 2 later.

Infotainment screen goes blank all the time. Nothing at all on the screen including back up camera. Now it is causing the other sensors not to work so you don't know if you are close to hitting something.

The infotainment screen was black and not working at all so no back up camera. Also all the sensors warning you that you are getting to close to hitting something stopped working.

The infotainment system has some major wiring issues that cause the screen to go black and disconnect which then renders the back up camera useless. There is a potential class action lawsuit over this issue. Lots of Honda Pilot owners have this same issue.

Center infotainment system screen shorts out and goes dark. Back up camera will not work and it is unsafe to back up as you can't see below the rear window.

Infotainment system is crackling through the speakers and then the whole screen goes black and nothing works including the back up camera.

Auto start-stop system failed. The car completely shutoff when the engine idle was engaged in the middle of traffic.

Infotainment systems makes a crackling sound then the whole system will shut down and screen goes black. Nothing with the system will work including the back up camera.

Like others have reported, similar to the odyssey we own that did have a recall to fix the issue, the vehicle fails to restart after it idles at a light. Causing very stressful situation in traffic because it take 10-20 seconds to get vehicle going. Happened 5 times in 6 months.

The infotainment screen went black. No back up camera available.

Two weeks ago, the audio in my 2021 Pilot became very distorted also as if the car was losing power. On my way to work this morning, I reached a red light, came to a complete stop, and the vehicle went into idle mode as normal. However, while in idle mode the vehicle turned completely off just as I was about to release the brakes to start driving again.

The Entertainment system makes popping and crackling sounds and will cut out. This is very distracting while driving. It does not allow you to use the screen at all including to view backing up.

I was about to cross the border I was not driving faster than 3 MPH when a few functions stop working