2020 Volkswagen Tiguan Electrical Problems

Mileage when the problem started

Owner reports

Selected complaints filed with NHTSA by 2020 Volkswagen Tiguan owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2020 Volkswagen Tiguan. The contact stated that water was entering the rear seat of the vehicle. The contact stated that the water intrusion had caused a short circuit in the vehicle and the vehicle was driving with Reduced Engine power. The contact stated that the water intrusion also disrupted the Bluetooth functionality. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the gateway control module needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 21V947000 (Electrical System, Structure). The failure mileage was approximately 63,000.

I am writing to report a serious safety concern regarding my Volkswagen Tiguan 2020. The dome light in my vehicle has completely broken off, melting the plastic from the screws, and was hanging by the electrical wires. This issue poses multiple safety hazards: 1.Injury Risk: While driving, the dome light unlatched and fell and struck me on the side of my head, causing a distraction and injury. 2.Visibility Obstruction: When the dome light is hanging, it completely blocks the view through the windshield and rearview mirror, significantly increasing the risk of an accident. I have taken my vehicle to the dealership, and they confirmed that this is a common problem with this model. They have seen and replaced the dome light on many other vehicles of the same model. Despite this being a known issue, there were no warning lights or indicators to alert me to the impending failure. …

I am experiencing the Driver Door Control Switch / EBS error. When this occurs my emergency break activates when I am driving, throwing me into a complete stop unexpectedly, pulls several check engine lights and a series of loud distracting alert sounds. This is extremely dangerous on the road and I've almost been rear-ended multiple times. I have brought my vehicle in to Volkswagen and European Specialty Auto Shop and they were not able to replicate the issue thus we're not able to help me. There are several forums online that point to this being a recall issue with Volkswagen and yet my VIN number is showing as not affected. It is my understanding that this issue is being caused by a faulty driver door wiring harness. It is random when this issue occurs. Forums online have led me to believe it is due to weather fluctuations. At this point I no longer feel safe driving my vehicle. …

The windshield wipers have been acting up, turning on unexpectedly when I use the turn signals, with no input from me, or when I drive over bumps, which seriously blocks my view and creates a danger on the road, especially in bad weather or during turns. This problem started showing up in October 2023 when the car had about 16,000miles, still under the 4-year/50,000-mile warranty. I took it to a dealership that month, but they checked the turn signals, scanned for faults, and found nothing, yet the issue didn't go away. I tried again in September 2024 with another appointment, but the dealership wanted $250 for a diagnostic and to keep the car overnight, so I couldn't proceed. The car and wiper system can be inspected if needed. There were no warning lights or messages beforehand; the trouble began in October 2023. Only the first dealership looked at it, with no fix. …

Car beeped and displayed warning stating that Ignition will turn off and Check Starter System on four separate occasions, resulting in loss of all electrical power including but not limited to headlights, brake lights, console display, speedometer, dashboard lights, turn signals, hazard lights a/c, etc. The center console felt very warm. The car needed to be pulled over and ignition turned off for a prolonged period of time before restarting or else the issue would continue. The car does not always start right back up upon first try. It is unsafe to drive a car without any working electronics, especially at night. It is difficult and unsafe to pull over to a safe space without any working electronics, especially at night. Brought car to Vw dealer and they removed and replaced the ignition switch actuator.

The overhead console in the vehicle detached on its own in October 2022 and will not stay secured. This has prevented my ability to see out of the front windshield and therefore hindered my safe operation of the vehicle. The dealer confirmed the issue but would not cover it under warranty, claiming that it was my fault for installing a dash camera. However, no wires are near the roof liner and the installation of my dash camera has nothing to do with the overhead console. The dealership then charged me $155 plus tax for this "assessment". Please see the attached files showing this is a known issue with the vehicle that Volkswagen will not properly address and cover. I have contacted VW Customer Service multiple times by US Mail and have still not received any type of response.

When the car is parked under the Sun on hot days. The car will lose the power and we get message on Dashboard "Check Starter System" When this happens and car is running, it will lose power, No AC, No Lights, No Brake Lights, No Hazard Lights, Speedometer will not work but Engine is running and you can drive the car. It is extremely dangerous to drive it that way. Some folks reported that replacing faulty ignition switch resolve the issue but it needs to be properly investigated and issue official recall on all VW models which are experiencing the issue. Its on VW Tiguan, Golf, Jetta for sure. Please see the video of issue [redacted]

I currently reside in Texas where it get HOT during the summer months. I recently got this car back in May. Recently when it's hot outside my car had cut off one day in traffic and said please check starter system. All electrical components of the car shut off completely. The engine will start run. But the AC, lights, back up camera, windows stop working. I have an appt to drop the car off at the dealership. I been seeing this is an ongoing problem for. VW vehicles I have seen multiple stories about this happening mainly in 2019-2020 jettas. This needs to be an investigation on VW and this problem.

The auto break feature will illuminate on the dashboard and then send my car to a screeching halt. It takes me on average 5 seconds to regain control of my brakes. It has happened exiting businesses (small curbs) but also on the main streets with no one else around going upwards of 45 mph. The infotainment system that houses the parking and rear view safety features as well as navigation also does not work when the car is left outside in weather above 80 degrees. The AC is also unable to cool when the weather is above 80 degrees all of these 'safety features' make the car dangerous.

The roof console (the console that controls the sunroof) detached overnight and was dangling at eye level by a couple wires. It cracked right at the screws. My guess is it has to do with heat resistance and thin plastic. If this had happened while driving, it would have been an immediate and serious safety hazard as it would have blocked my line of sight through the windshield. A quick Google search reveals what seems to be a common issue that's occurred in nearly identical manners: https://www.volkswagenownersclub.com/threads/2020-tiguan-overhead-console-detached.130458/

Electrical complaints in other Tiguan years