2020 Volkswagen Jetta Electrical Problems

Your car is throwing multiple error codes and failing to start repeatedly—you've had to clear the codes with a diagnostic scanner each time to get it running again. Most concerning, your car shut off completely while driving on the highway at 65 mph with cruise control on, forcing you to pull over and restart it. You've noticed a recall exists for 2019 and 2020 Jettas related to the ignition switch, but your 2020 doesn't appear to be included, and the dealer is now pointing to a faulty proximity sensor. This issue requires diagnosis and repair of the ignition and proximity sensor systems, likely involving replacement of the faulty sensor and possibly software updates or ignition switch service.

Your car intermittently displays an "Emergency services unavailable" warning along with steering and braking system warning lights, even though the dealer previously found no problem. Now that your warranty has expired, the dealer says you need a new telematics control unit (a computer module that handles vehicle communication systems). Fixing this will likely involve replacing the telematics control unit and reprogramming it to your vehicle.

Your car's SOS emergency button isn't working — it won't activate when you press it, and it wouldn't send a signal if your vehicle were stolen. The module that controls this feature has failed and the replacement part is on backorder from the manufacturer.

Your car's built-in navigation system and Apple CarPlay display your location incorrectly, sometimes showing you hundreds of feet away from where you actually are. This problem appears to happen periodically and has been reported by many owners online. Volkswagen has released software updates to address it, but the issue persists for many users.

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.

Incident Occurred in May. Was on Reddit and saw someone say to report any issues to NHTSA 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.

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.

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.

The problem I am facing is with making calls in the car both via android auto and Bluetooth. When making a phone call, if the volume is adjusted during the call, the other person will hear a very bad echo of their own voice. The echo only occurs when the call volume is adjusted, and I can't hear it in my own car. I have been to the dealer twice to diagnose this issue, and talked to VW Customer Care, neither has been able to fix the problem or determine why it's happening. The first visit I didn't know that changing the volume caused the issue, during one of the trips they replaced the microphone and tried multiple phones (iPhone and Android), neither fixed the problem. I purchased this car used with around 10k miles on it from VW and have had the issue ever since. This is NOT A SAFETY ISSUE, it’s just very annoying.

VEHICLE WAS STATIONARY IN PARKING SPOT AND UPON IGNITION BEGAN REVVING UNCONTROLLABLY AND THREW UP ERROR CODES "ENGINE SPEED MAX. 4000 RPM" AND "START-STOP SYSTEM ERROR", ALONG WITH EPC AND ENGINE LIGHTS. THE BRAKE WAS ALSO DEPRESSED. UPON PUTTING INTO REVERSE THE PARKING BRAKE WAS AUTOMATICALLY ENGAGED WHILE THE ENGINE CONTINUED TO REV. SOON AFTER, ENGINE WOULD SPUTTER BUT NOT TURN OVER WITH THE SAME ERROR CODES ON DISPLAY.

THE HILL HOLD ASSIST DID NOT DISENGAGED QUICKLY WHEN STOPPED ON AN INCLINE, BURNING THE CLUTCH TO GET THE VEHICLE TO MOVE FORWARD. THIS CAUSED SMOKING FROM THE HOOD OF THE CAR AND WE WERE THEN FORCED TO PULL TO THE SIDE OF A VERY CONGESTED HIGHWAY AND WAIT FOR THE SMOKING TO STOP AND GIVE THE CLUTCH A BREAK. THIS HAS NOW CAUSED PREMATURE CLUTCH WEAR.

VEHICLE IS BRAND NEW AND HAS BEEN IN MY POSSESSION FOR 7 DAYS. CAR-NET MODULE AND BLUETOOTH AUDIO MODULES HAVE BOTH FAILED. CAR-NET FAILED ON DAY 5, BLUETOOTH ON DAY 6. PRESCRIBED RESOLUTION INVOLVES PULLING THE APPROPRIATE FUSE TO RESET THE SYSTEM. AFTER THIS PROCEDURE, SYSTEM FAILED TO RESET.

THE EPC LIGHT COMES ON RANDOMLY AT HIGHWAY SPEEDS WHEN REVVING UP THE ENGINE TO OVERTAKE CARS. THE ENGINE SUDDENLY BOGS DOWN AND ENGINE RPMS ARE LIMITED TO 3000 WHEN LIGHT IS ON. IT COULD BE A POTENTIALLY DANGEROUS SITUATION BECAUSE THE CAR WILL NOT WANT TO ACCELERATE AND FORCES ME TO GET OFF THE FREEWAY. THE ONLY WAY FOR THE LIGHT TO COME OFF IS TO TURN OFF THE CAR AND TURN IT BACK ON. I VISITED A LOCAL VW DEALER AND THEY INFORMED ME OF A FAULT CODE P227900 INTAKE AIR SYSTEM LEAK PASSIVE/SPORADIC. THEY PERFORMED AN AIR INTAKE SYSTEM TEST AND FOUND NO PROBLEMS. THIS IS THE THIRD TIME THIS EPC LIGHT COMES ON. IF IT HAPPENS A 4TH TIME I WILL ONCE AGAIN TAKE IT TO THE DEALER IF SOMETHING COMES ON. IT IS VERY FRUSTRATING THAT I CAN'T REV MY CAR AT HIGHWAY SPEEDS OR ELSE THIS LIGHT KEEPS TURNING ON.

2 SEPARATE INCIDENTS INVOLVING THE EPC. ONE WAS ABOUT 10 DAY'S AGO, JULY 9TH GETTING ON THE FREEWAY IN HOUSTON. CAR THREW UP NUMEROUS ERROR CODES, IT AUTOMATICALLY SLAMMED ON THE BRAKES UPON ENTERING THE MIDDLE LANE OF THE FREEWAY, GAVE AN EPC ERROR CODE, TRANSMISSION ERROR CODE, AND START/STOP ERROR CODE. I GOT IT TO THE NEAREST DEALERSHIP, MONTROAD VOLKSWAGEN OFF I-45. THEY CLAIM THEY COULD FIND NOTHING WRONG AFTER SITTING ON IT FOR 24 HOURS & SENT ME ON MY WAY. FAST FORWARD TO LAST NIGHT, NOW 10 DAY'S LATER, JULY 19TH, COMING BACK HOME FROM DALLAS, A NEARLY 600 MILE ROUND TRIP & ANOTHER EPC CODE CODE COMES UP & SAYS FAULT: ELECTRONIC PARKING BRAKE WHEN I WENT TO PARK THE CAR & HEAD INSIDE. NOW I'VE ONLY HAD THIS CAR A MONTH, IT SHOULDN'T HAVE ALL THESE KINDS OF ISSUES & IT DEEPLY CONCERNS ME.