2018 Volkswagen Tiguan Electrical Problems

Your parking brake suddenly engaged on its own while driving, and your airbag warning light came on. When you tried to turn off the engine, the key wouldn't work properly, and once stopped, you couldn't get the driver's door to unlock. Your dealer found that the main wiring harness and the driver's door wiring harness had failed, which is why multiple electrical features weren't working. The dealer reset the warning codes but didn't replace the damaged harnesses, and warned you the problems would return until those parts are replaced.

Water leaked into your Tiguan through a factory seam in the HVAC area and damaged the airbag control module, causing your airbags to stop working. Your airbag warning light is on, and the dealership confirmed water accumulated at the module due to failed seam seal tape at the cowl support. This is a serious safety issue because your airbags won't deploy in a crash. The fix involves replacing the airbag control module and resealing the body seam to prevent future water intrusion.

One time the car Just Lost power on the freeway and the e-card engine light came on and the cat Ran rugh and stalled and jerked hard almost causing me to cause a serious accident...I took it to vw and explained the severity and they bypassed that And installed a new water pump..2months later the same thing happened exactly to where I was very lucky and very upset...and took it to them once again and explained more issues where I'm urging .

Engine keeps failing and dings while driving non-stop. Causes the vehicle to think there is another vehicle near me and activates the emergency braking in the middle of the highway almost causing me to crash. I have taken the vehicle to dealer and told it is fixed about 8 times now

Micro switch in driver door module I believe is the cause. I cannot open the door even when hitting the unlock button on the keys or inside the vehicle. All other doors will unlock and open fine but not the driver door.

On normal driving collision light come on and brakes lock for few seconds

Tl* the contact owns a 2018 volkswagen tiguan. The contact received notification of NHTSA campaign number: 18v467000 (visibility). The contact stated that she was unable to open the front driver's door and smelled a burning odor.

While driving, no object or anything in the front, the car emits a beep, red flashing collision signal, and slams on the brake. The day is clear, sunny, and daytime. This happened multiple times.

Tl* the contact owned a 2018 volkswagen tiguan. While driving 50 MPH, smoke and flames were seen coming from the dashboard. The contact was able to pull the vehicle over to the shoulder.

There is a recall for sunroof lighting: from vw website: high humidity in the panoramic sunroof ambient lighting bar LED module (caused by environment or by leaving the sunroof open) could lead to a local short circuit. If this happens, there is a risk of a fire. So, I bought higher model because I wanted this feature, but now I cannot use it because vw is going to disconnect it?

The safety alert that stops your car in case of a collision stops my car with none or thing in front or on the side of it. My backup camera stays on consistently when driving forward. The electronic middle console constantly freezes up and won't allow me to do anything or goes completely black.

Epc light came on and engine started to stall

Tl* the contact owns a 2018 volkswagen tiguan. While driving 45 MPH, the vehicle stalled without warning, the vehicle was able to coast over to the side of the road and the engine was turned off. When the vehicle was restarted, the engine started to vibrate.

2018 tiguan was purchased new in april - mid may car would not start, all warning lights went on. Car eventually turned on. A few days later while driving (on the road), car stopped completely, all warning lights went on.

On September 19th 2025, while driving on the highway at normal speed, the instrument cluster fuel gauge misread the fuel level and indicated that the tank still had fuel. Without any warning light or low-fuel alert, the vehicle suddenly lost power because it was actually out of gas. I was traveling with my boyfriend and our three dogs. We became stranded on the shoulder of a busy highway as vehicles passed at 70–80 mph. The outside temperature was about 85-90 at the time. This created a serious safety hazard: The cluster’s inaccurate fuel reading prevented me from knowing we were nearly empty. The engine shut down unexpectedly, leaving limited steering and braking control as we coasted to the shoulder. We were exposed to high-speed traffic and extreme heat while waiting for assistance. Additional cluster/safety issues observed: No audible turn-signal “click” or indicator sound when using the blinker. No warning chime if the car is left running when the driver exits (for example, if the ignition is on but the door is opened or the key is removed). The vehicle is out of warranty, but the dealership diagnosed a failed instrument cluster and quoted about $2,500 for replacement. Why This Is a Safety Concern: The instrument cluster provides critical driver alerts. Inaccurate fuel readings, lack of turn-signal audio, and the absence of an engine-on warning chime all reduce driver awareness and can directly lead to dangerous situations on the road. Requested Action: I urge NHTSA to investigate whether the 2018 Volkswagen Tiguan’s instrument cluster/fuel-level system and related warning features contain a design or manufacturing defect and to consider a recall or other remedy to prevent accidents or injuries.

Vehicle sending transmission alarms and also exit vehicle in P mode only alarm. First had issue around 25,000 miles and gear shift assembly was replaced under warranty for what I was told was a faulty sensor. Same issue returned at 100,000 miles and Volkswagon is replacing the gear shift assembly again at customers expense. I was told by Volkswagon that the car is safe to drive.

Door lock system Child trapped inside due to vehicle locking itself with keys in car after putting child in car seat and bag inside. Fire department used a slim jim through window to press unlock button; however, the vehicle would not unlock via interior door button. Fire department had to pull interior door handle to unlock, taking an additional 45 minutes to free child trapped inside. The problem has been reproduced. Without the ignition on, door locks will not attempt to unlock the vehicle unless the vehicle is already unlocked. Dealer confirmed issue and is stating there are numerous low voltage fault codes including the battery and passenger front and rear door latches. Vehicle has been inspected by the manufacturers dealer on 7/9/2024 at fire department's recommendation during incident. There were not any warning lamps, messages or other symptoms of the problem prior to or after the failure.

EPC electronic power control light is on and indicates speed of 40 mph, transmission light on, car aggressively vibrating.

Solo prendieron la luz

EPC electronic power control light is on and indicates speed of 40 mph

fuel injector wire hardness failed , very costly to fix

The front passenger door locking system does not function properly. The door intermittently is unable to be unlocked or opened from the outside and must manually be opened from the inside. The door also intermittently doesn't lock. This is a safety concern for thieves. If in immediate danger, ie. accident, no one is able to open the passenger door to access the person. No indication lights appear on the vehicle.

While driving down the highway, my car completely shut off and shut down while going 45mph. Due to everything shutting off, there were no brake lights, hazards, blinkers, etc that I was able to use to warn other drivers of what was happening, therefore I was almost hit multiple times. It turned back on, then back off while driving, 4 more times until the final time when it would not turn back on or turn over at all, I had to pull off the road and it wouldn’t turn back on again. At this time I got the battery tested and it was bad. I bought the new battery and the new battery didn’t change anything. It still was doing the same thing, not turning on at all. Not even trying to turn over to turn on. I had my vehicle towed to the Volkswagen dealership in Ocala on college road. While at this shop, they have told me that the NEW battery is what has cause the issues, which is incorrect as the issues began BEFORE I got a new battery. They are also saying that because I got a new battery that they will not cover the repairs under my warranty. I had to get in a new battery for my safety after almost being hit on the highway due to the electronics or other issues being faulty in the car.

At 48k miles, fuel efficiency began to significantly drop. At next start up, engine would not turn over and EPC light came on. I waited 30 minutes, unlocked the steering wheel and was able to start the vehicle and EPC light turned off.

Like many other complaints I have read, an error appears saying the engine had exceeded 4000rpm, when it does not. Then the car drops down to 10 MPH and will not exceed. The car shakes uncontrollably.

Tl* the contact owns a 2018 volkswagen tiguan. The contact stated that the outside temperature sensor was not operating properly. The contact stated that the vehicle displayed improper temperature readings and the sensor also controlled the vehicle's cooling fans.

Leaking sunroof drain causes the computer to mulfunction and report multiple car issues, like: fault: electronic parking brake error: ABS/electronic stabilization control (esc) error: airbag this happens every time there is a heavy rain

Tl* the contact owns a 2018 volkswagen tiguan. The contact stated that the seat belt indicator flashed and a chime was heard even when the driver's seat belt was secured. Flow volkswagen of charlottesville (1313 richmond rd, charlottesville, va 22911, (434) 296-4147) was notified several times, but was unable to replicate the failure.

Frontal brake assist is engaging without necessity. One incident occurred slowing driving through an empty parking garage while slowly following another car about a car length ahead. My dash warning lights turned on and the vehicle stopped.

This car is dangerous! I had vehicle for 4 months and have only driven 411 miles car has started to hesitate when pulling out into traffic, it almost feels like it shuts off for a solid 4 seconds before it decides to accelerate. Gas mileage reads 100mpg, we all know that's not possible...

I bought a car from vw south orlando 7 month ago and since than I had a lot of issue with the car engine light was going on and off I been their like 5 times now and just pissing me off I want a replacement car

Nothing but problems with my sister's leased 2018 tiguan.... Repeated service calls...constantly in the shop...currently a whopping 10 recalls...airbag not working... No help from volkswagen..called customer service...pushed number as directed...

Vehicle engages automatic braking system without any prompting...no other vehicle anywhere in sight. It has happened on a rural two lane road, with a farm on one side and woods on the other and has also happened on a 4 lane road within city limits, but no vehicle in front of me, but one to the rear passenger side in the lane heading in the same direction.

Stop/start function on new tiguan is behaving erratically. On a couple of occasions, when the foot brake is applied the car stops, but will not start again when foot is lifted off the brake. Brake goes hard and will not depress.

Ignition was on, doors locked with key inside but no one was in the car or locked the doors.

The vw-equipped entertainment center does not have the proper processing power to effectively use apple carplay. Since new, when attempting to use apple carplay, the entertainment system will freeze, malfunction, or otherwise fail after the iphone is plugged in.