2020 Volkswagen Jetta electrical problems

Filed Sep 10, 2026 · Electrical · SC

On 2 separate occasions (in recent 2 months); the car would not restart and error messages would include printing the electrical parking brake engagement. Attempts to reset were futile. Car had to be towed. After 2nd incident, the VW dealership identified that the ground wire for the electrical harness that runs through fuse box and engine was severely overheated resulting in inability to start. There are no recalls on this item; from a safety standpoint, this could happen while driving and a loss of power could result with overheated ground wire condition. This is a potential very unsafe condition and a costly repair item. In comparison, the non-start stop button vehicles have experienced the same condition, and recalls were performed on 2018-2021 Jetta’s. The same exact case, severely overheated ground wires requiring complete replacement of main wiring harness.

Filed Jan 27, 2025 · Body, Electrical · NJ

When I start the car Multiple times the car will throw over half of all the error code and could not start the vehicle. Driving in the highway doing 65mph with the cruise control on the car completely shut off and I had to limp it to the shoulder and was unable to start the car. Each time I cleared the fault codes then was able to start the car. If I didn’t have my scanner I would have had to get towed each time to the dealer. I see there is an ignition switch recall on the 2019 and the 2020 cars but for some reason I don’t see my 2020 included in that. Now the proximity sensor is at fault and I have to take it to the dealer again. Please let me know what I should do

Filed Dec 29, 2024 · Electrical · FL

Vehicle has been displaying "Emergency services unavailable" along with lights for steering and braking systems, Intermittently since new. The dealer stated no problem found.. Now that the vehicle is out of warranty they tell me it needs a new computer module. I believe they said Telematics control unit.

Filed Jul 2, 2024 · Electrical · IL

The built-in navigation and apple carplay periodically show the wrong location, offset by several hundred feet from the real one. A huge number of cases on the Internet, Volkswagen does nothing about it. They update the software, but it doesn't help.

Filed Mar 23, 2024 · Electrical · TX

The SOS emergency that is supposed to work when you press the button or if your car is stolen the module failed and on months of back order

Filed Nov 8, 2023 · Electrical, Engine · 65,789 miles · IL

The contact owns a 2020 Volkswagen Jetta. The contact stated while driving 70-80 MPH, the electronic parking brake engaged independently. The message "Driver's Side Door Fault" and a message indicating that the auto Start/Stop feature was unavailable were displayed. The contact stated that the failure had been recurring while driving at various speeds, while making turns, and while coming to a complete stop. The vehicle was taken to the dealer, where it was diagnosed that the driver's side door wiring harness had failed and caused the module to experience an electrical shortage. The dealer informed the contact that the electronic parking brake had engaged because the door was securely closed while driving. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 65,789.

Filed Oct 4, 2023 · Electrical · MD

Incident Occurred in May. Was on Reddit and saw someone say to report any issues to the federal safety agency so that's what I'm doing At the end of the month in May (2023) when starting my car after work that had been sitting in the sun, it turned on but then turned off about 10 seconds later saying "ignition switch off safely stop the vehicle" then it flashed to another screen saying "please check the starter system." I waited about 10 minutes then I was able to start my car with no issue. Then after leaving work I pulled onto the highway and the issue happened again while going 60+ mph. Everything cut off and it gave me the same message. My jetta is a manual so it was still in gear and could keep driving but it was super sketchy. I immediately pulled off the road and when I came to a stop the car completely shut off. Then I waited another 10 minutes. Started my car again and the exact same thing happened and I had to pull off the highway. After that I was able to start the car without it happening again and I drove straight to the Volkswagen dealer to have them fix it. I left the the next day to go to a work conference out of state and returned the following Sunday to my car which was now fixed. Part P2532 was replaced in the ignition switch. Luckily I have a 4 year 40,000 mile warranty so I didn't have to pay anything.

Filed Jul 11, 2023 · Electrical · CA

I live in a very hot area where the temperatures rise to well above 100°. My dashboard gets hot. I imagine that the computer system is in the dashboard after the car has been in the sun I get into my vehicle start my engine things seem fine and then I’m driving down the street and the whole front panel turns off. The air turns off, the stereo turns off most importantly, the air turns off and there is an ecosystem set in my car, where the engine turns off while I’m idling. . The air turns off, the stereo turns off most importantly, the air turns off and there is an ecosystem set in my car, where the engine turns off while I am at a lot of times the whole car will turn off. I cannot see any of the gauges and I can’t roll the windows down for air most of the time, the car will continue to drive down the street, but under very dangerous and uncomfortable conditions. Below I’m going to add today’s date because it’s the most recent time that it happened but it happens. Every day doesn’t happen at night doesn’t happen in the morning because the car was cool overnight. Let me be clear that the engine is not overheating. It is the computer system. Just like when an iPhone is too hot to work.

Filed Jul 3, 2023 · Electrical · 25,000 miles · KY

The contact owns a 2020 Volkswagen Jetta. The contact stated while exiting a parking lot, the instrument panel went blank without warning. The contact turned off the vehicle and after several attempts was able to restart the vehicle. The vehicle was taken to the dealer for a diagnostic test however, no cause for the failure was found. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 25,000.

Filed Dec 22, 2022 · Driver assistance, Electrical · GA

Hit a pot hole in the road and vehicle completely shut down and will not crank. Diagnostic code U0100 is saying that the ecm and pcm are no longer communicating. If I had been on the highway or in a high traffic area that could have been a life threatening situation as everything is run through the electronics of the car.