2018 Volkswagen Tiguan electrical system problems

42 owner complaints filed with NHTSA name the electrical system on the 2018 Volkswagen Tiguan — 15% of all complaints for this model year.

Electrical System complaints

15%

share of all complaints

13,000 mi

median reported incident mileage

1 / 2

crash / fire reports

What owners report

“2018 VW Tiguan. The fuel injector harness failed. There is a NHTSA letter stating 2018-2019 Tiguans had this issue and there’s an extended warranty up to 120,000 miles. My Tiguan is at 91,000 miles, but VW is saying the warranty isn’t assigned to my VIN. So there’s a warranty for this exact issue…”
filed Apr 20, 2026
“The contact owns a 2018 Volkswagen Tiguan. The contact stated that while driving at an undisclosed speed, the parking brake independently activated, and the air bag warning light illuminated. In addition, while attempting to turn off the vehicle, the key failed to function as intended. The vehicle…”
filed Mar 31, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: DA 0019 - Hotfix 12-V battery…
VOS-26-42 · Service Bulletin/Repair Instructions · issued Jul 15, 2026