Electrical System Problems of Volkswagen Tiguan - part 1

My name is [xxx], and I am writing today to express my complete frustration mentally and financially with a cpo 2021 Volkswagen Tiguan (VIN [xxx]) I purchased xxx. To date my vehicle has been in for service multiple times – countless times for an issue with the infotainment system and driver warning indicators that is still unresolved and again for months waiting on a new engine due to an oil consumption issue that was finally resolved November of 2025 (case xxx). My recent service visit on xxx was due to a “12 v battery not charging” error message. The vehicle was immediately taken to vw of [xxx] where we were advised it would be 3 weeks before my vehicle would even be looked at (which is atrocious) and not to drive it because further damage would be caused with no alternative solution offered for transportation. I then had the vehicle towed to a repair shop where I was advised the alternator “fried a 400-amp fuse and killed the battery, which should not happen, especially on a vehicle that has less than 50,000 miles on the odometer. ” I paid $1,605. 37 for a new alternator, 400-amp fuse and battery. Completely appalling and disappointing considering I take excellent care of my vehicle and it is supposedly an inspected, certified pre-owned vehicle – that’s a lemon in my opinion! I am seeking reimbursement for this huge expense for a vehicle that should not have these issues! I look forward to a resolve to this urgent complaint. Regards, information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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The infotainment mib3 system failed. Infotainment screen is completely black and non functional. This has put my family at risk because I can’t see my backup camera and have very limited visibility through rear view mirror when backing up. I also lost safety features such as rear cross traffic warning, rear auto braking, ability to see pedestrians or vehicles when backing up, and the emergency cell call system. My car also no longer can access navigation or carplay which makes navigation dangerous on my small phone. Failure of mib3 infotainment brain was confirmed by vw dealer. Car is under factory warranty but part is backordered with no eta so I’m forced to drive an unsafe car. Was denied a loaner vehicle. This failure happened 1 day after overhead console spontaneously broke and fell down from headliner. Error lights now persist on the dashboard.

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During hot weather the vehicles electrical will shut down while driving displaying a message saying check starter system and I will loose all lighting and brake lights and turn signals and hvac systems and engine will shut off also I was going down the highway when this happened to me and it only happens in hot weather. This has been happening since we purchased the vehicle Volkswagen refuses to fix it and the 2020 models are on recall for this same issues.

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The 2026 vw Tiguan infotainment system blacks out due to thermal failure at ambient temps as low as 100 deg f this creates a total loss of driver controls including windshield defrost and demise systems posing an immediate visibility hazard vw refused to repair becuase defective hardware does not store a diagnostic trouble code on reboot. Prevents any driver action to clear fogged windshield. Or operate fan speeds to do so.

Component(s) affected: electrical system: ignition: switch, exterior lighting: brake lights, electrical system: instrument panel summary: when the interior cabin or ambient temperature becomes hot, a critical ignition/electrical failure occurs. The dashboard displays error: "ignition has switched, please safely stop the vehicle. " immediately following, a total electrical shutdown occurs: the instrument cluster goes black, and all external signaling—including the brake lights and turn signals—stops operating. While mechanical engine propulsion is maintained, the driver is left with zero visibility of vehicle metrics and zero exterior signaling to warn trailing traffic. When restarting, the vehicle fails to crank on the first attempt and displays: "check the starter system. " the vehicle functions normally once the cabin cools down or during cold weather. Safety risk & consequences: this defect poses an immediate and severe crash hazard. Operating a moving vehicle without functioning brake lights or turn signals deprives surrounding motorists of critical indicators, drastically increasing the risk of a rear-end collision. Additionally, a complete loss of the instrument cluster impairs the driver’s awareness of vehicle speed and critical safety alerts. Diagnostic & context: an independent certified mechanic diagnosed the issue as a failure of the ignition switch electrical component (not the mechanical tumbler). Thermal expansion causes the electrical contacts to fail, triggering the systemic shutdown. The mechanic noted this part is on a severe nationwide backorder, indicating widespread failure. A known safety recall exists for the vw jetta for an identical thermal ignition switch failure; however, the vw Tiguan—which utilizes the exact same turn-key ignition switch part—is not included. Multiple online automotive forums document identical hot-weather electrical failures among other Tiguan owners, proving this is a systemic hazard that warrants a safety recall.

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Keyless system warning continuously goes off. Lane assist continually is unavailable start stop system continually unavailable dealership has serviced the vehicle and warning indicators continue to go off.

Electrical screen fail. Makes backup camera turn black and turns off while using. Off and on repeatedly while in use. Very dangerous.

When driving, the vehicle self shifted into neutral and was unresponsive. All of the dash warning lights came on and I was not able to apply throttle or shift the car into drive. I had to coast in neutral to the side of the road. This is a safety issue and there was a high possibly of crashing if it wasn’t on a rural road. This is the second time this has happened. The first time vw service said nothing had occurred and gave me my vehicle back.

The contact owns a 2025 Volkswagen Tiguan. The contact stated that while driving approximately 55-60 mph, the vehicle suddenly became inoperable; the power steering became inoperable, and the brake pedal became difficult to depress. The message "no key fob detected" illuminated. The vehicle was taken to the dealer, but the failure could not be duplicated. No repairs were performed. The manufacturer was notified of the failure. The failure mileage was unavailable. The VIN was unavailable.

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I was driving in 4 lane town traffic going under 10 mph and the hazard lights came on by themselves, and the car died. Propulsion stopped. Fortunately I was able to pull onto a striped median, and once I was over shock, 3-5 ish minutes, I started the car and drove to the dealership. I don’t remember any warning message, and it seems like the steering and brakes were hard once it was dieing, but I was so shocked it’s hard to remember exactly. This happened in rainy weather, about 65 degrees around [xxx] on [xxx], in bentonville, ar. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My vehicle is experiencing a severe safety hazard where the emergency braking system suddenly slams on the brakes while driving in traffic, pulling into traffic, or backing up. When this happens, the car unexpectedly shuts off, and no warning lights or error messages appear on the dashboard. This has almost caused an accident multiple times, making the vehicle incredibly dangerous to drive. I previously took it to the dealership, but they told me they could not find an issue and advised me to continue driving it while documenting the dates and times it happens on paper. However, I refuse to continue driving this vehicle and put my children's lives at risk just to collect data.

Tha back up camera system is glitching out. We reset the system but is keeps freezing/blacking out after about 30 seconds. This is known issue with this model of Volkswagen.

-after turning the car on and driving a short distance, the driver dashboard made a warning sound and flashed a warning about my 'ignition system' turning itself off. After that, the entire dash (the speedometer, gas gauge, the infotainment system, the internal climate controls, etc. ) went blank. The warning told me to immediately pull the car over and turn it off. Because of this, the car's external brake lights and turn signal indicators also do not work. -because this error is happening while the vehicle is moving and is on the roadway, I am driving blind in traffic without a way to signal lane changes or when I am coming to a stop. -the car has been worked on three separate times (the alternator was replaced twice and the battery once) for this issue, but the issue is still happening. It only happens when the weather gets to be above 80 degrees. -the vehicle was taken to autonation Volkswagen on July 6, 2026, and the service worker who I talked to said he's seen similar issues with Volkswagens in his two and a half years that he's worked in the service department (which lines up with the vw recall for other vehicles) after I described the issue to him. He confirmed those cases also happened when the outside temperatures were high. -no, no warning messages were displayed prior to the issue spontaneously happening back in may 2026. The first warning message I got was accompanied by the dashboard going completely black. -there is a vw safety recall (vw campaign 28h7) and a NHTSA recall (23v604) for the following vw models produced between 2019 - 2020: golf, golf alltrack, golf gti, golf sportswagen, and the jetta in the united states. -vw customer care (called on July 6, 2026) declined to take down my complaint and said they could not enter my VIN to track the error for future recalls because I quote "didn't have a vw customer account. " they provided me with a case number (#07599604) but I'm not sure anything was logged, and I didn't qualify for 'goodwill'.

Since purchasing this new 2025 Volkswagen Tiguan, I have experienced repeated electrical and drivability defects despite multiple repair attempts by an authorized Volkswagen dealership. The vehicle has been out of service approximately 70+ days, including a transmission replacement, a loose ball joint and suspension repairs. Defects include repeated check engine lights, remote start failures, false "door ajar" warnings, intermittent warning messages, vibration while driving, and hard shifting. The vehicle also shut off while I was reversing and had to be shifted into park before it would restart. Before taking the vehicle back, I asked the dealership whether it was safe to drive and did not receive a response. After the vehicle was retrieved from the dealership for the 4th time, several defects recurred within approximately 44 minutes, and the check engine light returned the following night. I believe these recurring defects present a safety risk to me, my passengers, and other motorists.

Out 2026 Tiguan se line the first day when we drove the veh home it had a bad vibration and brake problems hvac system locking up unable to control the fan speed was raining out and the fan speed was inoperative had to pull over due to fogged up windows . The brake system when stopped at a light in traffic it will not hold the veh moves forward while the brake pedal is depressed firmly and in stop and go traffic the brake pedal gets hard . When backing up the the brakes violently apply scares you . The veh had only 384 miles on it the first time in the said they fixed now several weeks later it is back for the same problem . They said they do not know how to fix it .

The car stopped at a light on a busy street in [xxx] (in the middle lane), then the engine stopped, and my wife could not restart it. I went as fast as possible and met her. I was eventually able to get it started. This is the third time we have had problems like this. I did the same thing for me and another time for my wife. I believe it is the stop-start capability, but I can't say for sure. We have also had bad engine oil burning problems and electrical problems. All of these (I now know, but did not before) are recurring problems for 2019 Tiguans. The cylinder head was rebuilt last year, associated with a similar instance. I am now fully aware that the 2019 Tiguans are known to experience all of these problems, but when I brought my car in on previous occasions, that never got mentioned. I am told xyz is an issue, then billed for repairs. The car was originally leased, and when I purchased it at the end of the lease, I also purchased a full premium warranty. When the issue happened in may of 2025, the policy eventually covered this, but it took over a month of justifications and records before the third-party insurance company agreed to cover the repairs. All of this said, I am no longer comfortable that this car is safe for my wife to drive, as the issues that are repeating are known issues, and yet Volkswagen seems to sweep these under the rug from both a manufacturer and dealership perspective. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

While driving on the highway in my 2023 Volkswagen Tiguan (approximately 70,068 miles), the epc warning light and oil warning light illuminated and the vehicle began to stall/lose power. I exited the highway immediately and shut the vehicle down safely. A substantial amount of engine oil leaked from underneath the vehicle after stopping. The vehicle was towed to a Volkswagen dealership. Dealer diagnosis included: * cracked oil pan, * oil separator failure, * and timing chain cover leak. The dealership advised there was no metal contamination found in the oil or filter and no confirmed catastrophic internal engine failure at this time, though the long-term condition of the engine cannot be guaranteed after the oil-loss event. I am submitting this report because the sudden oil-loss event and stalling condition occurred while driving on the highway and created a potential safety hazard.

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Vehicle was just turned on and put into reverse. Dash and infotainment center lights flashed and shut off. Vehicle rolled backwards uncontrollably down a sloped driveway. Steering and brakes were not properly functioning. Vehicle came to a stop when it struck a parked vehicle in its path.

The problem occurred immediately after picking my car up from a valet on 5/17/2026 around 9:00pm. The valet had pulled my car up to the front of the seattle park ‘n fly valet by sea-tac airport. I pulled out onto International blvd, and within a few seconds, the accelerator pedal became completely unresponsive. I was able to coast the car into the denny’s parking lot just north of the valet lot (about 0. 2 mi north of the valet). Everything else seemed to work just fine, except for the accelerator pedal (brakes worked just fine). I turned off the engine, and when I tried to restart the car, it was turning over but wouldn’t start. I called out someone to jump the battery, but the battery was fine. We then disconnected and reconnected the battery, and this resolved the issue and I was able to restart the car and drive away. It was dangerous that I was able to pull out onto a road, just to immediately lose any ability to accelerate. I’m lucky there was a nearby parking lot and I didn’t pull into busy traffic. Something seems to have happened at the valet, that was then triggered as soon as I pulled out onto the road. My guess is they tried to start the car and use the twist shifter in some combination that caused a fault that only triggered once I started to get up to speed. It’s strange because they were able to pull my car up to the front of the lot just fine, and I was able to pull out onto the roadway just fine, but the loss of acceleration only happened once I tried to get it up to speed.

Center roof console fell out while driving vw states it out of extended warranty charging $200 for repair I find this very dangerous.

When it is really hot outside 90 and above my car does messes up. As I'm driving my car will throw the code pull over and check starter system. Everything turns off, and then it takes minutes from my car to restart. It has happened multiple times when I'm in traffic at a stop light or driving and it throws the code as my car is moving. I have taken it to shops and still no auto shop can figure out the fix. Happened for the first time a year ago, and now its happening constantly.

The vehicle logged code p0491 due to a clogged cylinder head internal port at 28,000 miles (26,000 at the time vehicle was inspected. ) Volkswagen's official repair protocol requires a complete engine cylinder head replacement. The vehicle's onboard computer has disabled the factory-installed remote start system as a result of this engine fault.

*after a oil change only runs 2,000 miles a month and check engine light on for low oil. When car turns in morning turns on fine after I work for 8hrs turn back on and white smoke comes from the exhaust. Window sometimes wont work. Has been taken to dealership but they did not find anything. We first thought oil was not been done and took it again and they did oil change again same problem keeps happening . Tomorrow 7/1/2026 will be taken again after two attempts *check engine light came on with a "check oil level ". Problem start to appear on may 7 2026. Car was seen by the dealership for a oil change on 5/9/2026 , on 06/16/2026 check engine light came back with a "low oil level", on 6/18/2026 oil was change at a shop and today 6/30/2026 light is back on not even a month on my last dealership oil change miles dont match my original miles " 36,063 thank you!.

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The vehicle experiences sudden loss of motive power during acceleration. Between 30–60 mph, the transmission fails to upshift correctly, causing the engine rpms to spike to 5000 while the vehicle fails to gain speed. This creates a severe safety hazard when merging into high-speed traffic. Additionally, the infotainment system frequently blackouts and reboots while driving, and there are intermittent malfunctions with the power windows and door locks. Authorized dealerships have been unable to resolve these persistent safety defects after multiple repair attempts.

While driving my car, I get a loud beep and all of a sudden it says system switch failure pull over safely. It seems to do this on hot days. We thought it was maybe the battery and replaced that at $280. It was fine for about a week and then started doing it again. Everything on my dashboard goes completely blank my ac stops working I cannot see my gauges. Nothing works. It’s very scary especially when you’re driving. You can’t see your speed. Even the manual speed goes out my gas meter doesn’t work. None of the meters work. I just bought this car six months ago. This is absolutely insane and after looking up what is going on with my car this seems to be a very common occurrence which would make me wonder if the ignition switches need to be replaced or the 645 relay is faulty, but it’s not adding up something absolutely needs to be done. It’s an unsafe occurrence that could potentially kill someone while they’re driving.

The vehicle will randomly shut off while driving. A message will appear stating "check the starting system" attempts to restart the engine are unsuccessful. The engine will start, stall after about 2 seconds and the message "check starting system" will display. The first time it happened, I was turning a corner at a rather dangerous intersection and the vehicle stalled. It took about three attempts before the engine would remain running. When the engine would stall the dash would go dark and the engine would not remain running this happened about a month ago in hot weather. It occurred again on April 25th, 2026 way worse this time. The temperature in the area reached 91 degrees fahrenheit. My vehicle was sitting outside in the heat for at least 5 hours, same issue, the vehicle would then proceed to stall in the middle of the freeway, I was able to coast to the breakdown lane where the vehicle would remain unable to start and the message "check starter system" would display. Looking on NHTSA webpage before filing a complaint, it seems that this is a rather common issue. Vw had a recall for other models (campaign 28h7) for models such as the jetta, golf and other like models. This is a really dangerous issue and could end up getting someone seriously injured or worse killed in a collision if my vehicle stalls like this. The vehicle is scheduled for a service appointment in the near future (local vw dealer is at least 2 weeks out before they can even look at my vehicle) after viewing this information, I can't help but believe it is possible the 28h7 recall is affecting more models than anticipated.

The travel assist warning displays frequently depending on where hands are positioned on steering wheel. Sound is a distraction while driving and hand placement can to unsafe to avoid the warning being triggered. I have had the steering wheel replaced due to the issue but now with the new steering wheel the problem is back.

2018 vw Tiguan. The fuel injector harness failed. There is a NHTSA letter stating 2018-2019 Tiguans had this issue and there’s an extended warranty up to 120,000 miles. My Tiguan is at 91,000 miles, but vw is saying the warranty isn’t assigned to my VIN. So there’s a warranty for this exact issue and year, but my vehicle isn’t covered. This warranty obviously needs to be extended by build date as it’s a pretty costly repair.

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When I’m stopped, the car sometimes shuts off. The horn works intermittently. When I start the car, it feels like it’s going to stall. At times, all of the dashboard warning lights come on. Also, when I’m backing out of my driveway with nothing behind me, the car will sometimes automatically brake hard.

When I am driving my vehicle, I get an alert that the "ignition switched off, please safely stop the video". All electrical power to the vehicle subsequently drops off. This is the same issue that the 2018-2019 vw jetta's were recalled for in 2023.

So we took it into Volkswagen in texarkana texas. They had the car for an entire week. They said they updated something. The first day we got it back. My daughter drove it and the lane assist turned off. The dealership told us it’s a known issue and then it happens when it’s in the sun well, this was at night at eight something p. M. I’m attaching a photo. If this is a known issue because we called another dealership in another town there might need to be a recall, issued or figure out what the problem is or maybe this is just a lemon, but I want to keep documenting it because I keep taking it in and it’s not being fixed. What would you suggest we do next?.

Parking brake violently engaging with every stop.

When driving car will read error code that states there is problem with the starter and shuts off all electric components while engine is still running. Has happened multiple times since initial incident.

When the weather is warm or hot the car will drive less than a mile then cuts off but still drives. No air conditioning no radio or camera works how car shuts off but can still drive.

Travel assist not available notification pops up on the dashboard and makes a loud distracting ding noise randomly and repeatedly. Volkswagen has no fix for it except “replace the steering wheel” which I’ve done twice. They need to push a software update so I can silence this thing.