2019 Volkswagen Tiguan

Error code: "Driver door contact switch". When this comes on randomly I can't unlock or lock my doors. I have had to climb out of my car through the passenger side door after parking because the driver's side won't unlock. Fault: "Auto parking break" When this comes on I can't turn on or off the parking brake. Sometimes when I'm driving and there is a bump or a change in surface level the parking break comes on. My car stops all of a sudden and cars behind me swerve not to hit me. I have noticed that the issues can go as fast as they come on. They only really happen in cold weather. Last year (2022) was the first year that things happened. I took my car in to see what Volkswagen could do. They said that because the error codes weren't running then they couldn't diagnose the issue. They also said that they have never heard of this before. However, when the error codes are on it's unsafe to drive the car. I have read that other Volkswagens have this issue. The link below is one example. https://knightlawgroup.com/volkswagen-tiguan-wiring-harness-automatic-braking-problems/

My problem does not involve a crash but involves frequent DELAYED ACCELERATION in warm and cold weather, due to Drive-by-Wire technology or software. My VW service department does not acknowledge the problem and considers this delayed acceleration as turbo lag! Really, turbo lag at idle and no forward movement! Example sitting in parking lot at idle, auto trans in D drive. I stopped to let out my wife of car and I depressed accelerator pedal and nothing happened for six second delay, the motor continued at idle, 1000 rpm, than after approx., full six seconds (i was counting) then car raced off and I had to brake. This issue occurs from full stop warm or cold and from idle to 1800 rpm and up to 25mph and from first week of ownership beginning in October 2019. This had been reported up to eight times and only serviced by the selling VW dealership. The internet is full of remarks from VW owners of multiple VW models with same 4 cylinder turbo and many other European and Japanese manufacturers. I suggest these cars with 4 cylinder and turbo be investigated. I previously owned a 2016 GMC Terrain with drive by wire that never in three years displayed this similar issue.

While driving at night the cars IP displayed a warning "ignition system shutdown please check your start system", the Instrument panel and information display then went dark with no symbiology speed, revs or turn signals. The head lights and tail lights shut off and cabin fan and side windows stopped working. The engine continued to run so I was able to safely exit the highway but was a stressful and dangerous moment. When the vehicle was taken for repair VW service says issue was caused by a malfunctioning battery which was replaced at my cost with an OEM part. this has not fixed the issue though and I am attempting to get a new appointment for service.

The contact owns a 2019 Volkswagen Tiguan. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The battery was jump started and the vehicle restarted. The vehicle was taken to the dealer where it was diagnosed that the battery needed to be replaced. The vehicle was then taken to two independent mechanics who tested the battery and determined that the battery did not need to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 40,000.

Rooftop leakage , consistent with rain and snow and 2/3 inches of water sitting on the right side passenger floor and that side is wet for a long time and sometimes mold was formed. Car is now smelling bad. We never crossed our mind about blaming the roof leak but drivers blaming each other for leaving the window a jar or kids spilling water bottles in the car. Now the car was parked in the driveway sitting tight and right. And today, checked the car to move, saw 2/3 inches of water from last week rain with storm IAN. So the problem of manufacturing fault has been with us since we bought it in 2019.