2021 VOLKSWAGEN TIGUAN Electrical System Problems

In July, Chicagoland was very hot and my car stays in the garage. The piece that holds the sun roof control panel on the ceiling melted and came partially off. It’s been hanging since then since I was told it wasn’t ready to be fixed yet since there is no recall. I’ve been waiting but now my SOS feature is inoperable.

I’ve had my Volkswagen Tiguen since 2021 fresh off the lot. I have been the only owner of the car at about 30,000 miles my head gasket blew, causing the engine to go into default after weeks in the dealer. They replaced the head gasket and stitched it up, the head gasket blew again at this point I was still under warranty so they agreed to replace the engine. It drove fine after the engine was replaced this year 2025. I started to have a whole host of problems. It began to jerk and hesitate at acceleration. My engine light came on with continuous jerking upon acceleration for weeks until I started to lose power in my engine. I couldn’t go over 50 60 mph. I would always pull the car over power it off and power it back on just to see if it would change and it didn’t do much I had a local mechanic add oil to each tire also drain the engine, which had shards of metal in it. And basically stitch the car back together until we can figure out the bigger issues. It’s only been a day since the oil was added to each tire. I had a very violent jerk of the engine, which made it feel and sound like I blew a tire I got out to look at the tire and it was just fine. It was the backfire of the engine going into the exhaust that caused such the violent jerk. Happy that no one was on the road. If somebody was behind me it would’ve easily been an accident. Most of these dealerships know exactly what’s going on and have been avoiding the big conversation of what to do next they rather just replace and Band-Aid these things into the consumer just gives up. I have two small children and this is the only means of transportation. I’m fearful that I’ll be stuck with a car note for a car. I can’t drive.

Mechanical trunk lid emergency release will not release from the rear of the vehicle. The locking mechanism failed and lid will not open.

Upon starting my 2021 Volkswagen Tiguan, the vehicle immediately went into "limp" mode and the check engine light and EPC light came on. The vehicle would not drive over 18 mph. The car was towed to a close by Volkswagen dealership and checked for codes using a multipoint inspection. The report came back with a throttle body issue (Multipoint inspection report attached). The throttle body was replaced and the vehicle was taken for a 15 mile test drive. During the drive, the same problem occurred. After the drive, 34 codes were found in VWs report. I have also attached the report to this complaint. The technicians at the VW dealership didn't understand the problem, so they opened up communication with Volkswagen in Germany. The Volkswagen engineer advised the dealership to replace the wire harness. After the wire harness was replaced, the car has no more issue (although it has only been 5 days since), which cost $2314.54 in total. There is a class action lawsuit in the state of New Jersey (Case [XXX]) against Volkswagen Group of America that states "VW is aware of concerns involving faulty wire harnesses"... affecting 2019-2022 Volkswagen Atlas, Golf, Jetta, TIGUAN, and Taos. Thank God that this happened to my vehicle with the car was at rest and not traveling at a high rate of speed that could have been fatal. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The overhead console fell down with no indication or force - could’ve been heat or weak parts. Overhead console dangled by electrical wires and blocked rearview mirror and line of sight. Upon research, numerous other Volkswagen Tiguan owners have experience similar issues.

The overhead console that controls the interior lights, sunroof, SOS button, etc. just popped off while driving and almost hit me in the head.

Fuel gauge showed close to empty and we filled up the tank. The fuel gauge is still reading empty and not properly reporting the gas level in the tank.

11/19/2024 Check engine light came on while I was driving. Got home, checked oil and it was down about a quart. Oil had just been changed on 10/17/2024. Only approximately 1800 miles put on vehicle since last oil change. Vehicle was at approximately 62,000 miles. Also tire pressure light always on. Scheduled appt with VW dealer. Dealer invoice states "P04F000 Checked Purge valve and found oil in line, due to Defective crankcase breather, and causing an oil leak, replaced crankcase breather, replaced the EVAP purge valve and replace the upper timing cover gaskets. cleared oil off engine and test drove". the engine could have blown while I was driving this, I had no previous warning signs and since the dealer says the Defective crankcase breather, thinking they should be fixing this issue and not charging the customer. Total cost of repair $960.02.

CLIMATE CONTROL STOPED WORKING JUST FLICKERS ON AND OFF

The contact owns a 2021 Volkswagen Tiguan. The contact stated that while driving approximately 15 - 20 MPH the "Stop and Start Failure" message was displayed. The contact restarted the vehicle and the "Fault Electronic Brake" and "Driver Door Switch Failure" messages became displayed. The contact pulled to the side of the road and opened then closed the front driver’s side door and restarted the vehicle. The contact repeated the process three times however, the messages remained displayed. The contact continued to drive the vehicle at approximately 15 - 20 MPH and the parking brake suddenly activated. Once the parking brake had independently released the contact was able to get to the side of the road and turned off and restarted the vehicle several times. The failure had started occurring more frequently. The contact stated that several other unknown messages were displayed. The dealer had been informed of the failure however, the vehicle had not been taken to the dealer. The vehicle had not been diagnosed. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The failure mileage was 20,000.

Mileage: 20,000

Vehicle keeps having all warning lights and warning messages come on whenever the car starts. Warning lights maintain on constantly and has audible beeping to indicate the warnings. Vehicle would also put itself into park randomly at, as well as disengage collision and lane sensors while driving. Vehicle has been taken to the dealership, and has been reproduced by them, stating "we have never seen this before and are not sure what to do, we need to reach out to Volkswagen directly" most recent update, they needed to replace the door harness and F5 module but are still unclear with the status of the repair. Dealership has indicated it's safe to drive if I wanted to pick it up while they figure out the issue.

Oil change/ low oil light didn’t come one. When car was initially checked due to check engine light being on it didn’t produce any codes. The dealer confirms it needs a new engine and turbo rebuild due to there being no oil in the car. Last oil change was May 29, 2023 at Pep boys.

The car will suddenly shut off while slowing down or coming to a stop. The “start/stop” error message is displayed and the car displays to “manually restart car”. At first this happened only sporadically, but now this is happening while on the highway in traffic or while turning in an intersection. Today it has happened 5 times. Our car only has 10,000 miles and has had problems from the beginning. The fuel pump had to be replaced after sitting at the dealership for a MONTH while they tried to fix and unknown “EPC” error that displayed and completely shut our car off while driving on the highway—not coming to a stop.

From a cold start and backing down the driveway, the SUV displayed an error code “Error: Driver Door Contact Switch” and automatically put the park break on. The driver had to put the Tiguan in park, turn off the vehicle, and release the emergency break restart the Tiguan and pulled back up the driveway. The driver proceeded to open/shut all the doors to ensure that all doors were closed. The drive started the Tiguan and proceeded to back out the driveway and the same thing happened with the error code and the park brake. The driver restarted the Tiguan and pulled back up the driveway and turned off the Tiguan exited the vehicle locked it and noticed the error code was still showing on the dash.

While coming to a stop, the car displayed an error code “ Error: Driver Door Contact Switch” and automatically put the car in park using the emergency break. The driver would have to put the car in park, turn off the vehicle, and release the emergency break to continue. The Volkswagen Tiguan would do this at every stop. The driver pulled over and opened/shut all the door to ensure that no doors were open and it was only after reading in a form that the driver discovered that it is an electrical issue/software issue that the computer registers the door as open.

The contact owns a 2021 Volkswagen Tiguan. The contact stated while driving 40 MPH, the overhead console detached from the vehicle. The contact stated no warning light was illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the overhead console to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 20,000.

Mileage: 20,000

The gas door on the vehicle would not open. It is locked when the vehicle is locked, and is unlocked when the vehicle is unlocked. The gas door opens by pushing the door, and the door will pop open. After repeatedly locking and unlocking the vehicle, the gas door still would not open. I ended up prying the door open, breaking it off in the process.