2018 Volkswagen Tiguan lights problems

Filed Oct 9, 2026 · Electrical, Lights · LA

Suspected Electrical Defect and Potential Fire Hazard – 2018 Volkswagen Tiguan SEL I am reporting a suspected electrical safety defect involving the sunroof wiring harness in my 2018 Volkswagen Tiguan SEL. While my vehicle was parked, an attempt was made to replace a blown F23 fuse. Smoke began coming from the sunroof area and filled the cabin. Afterward, multiple warning lights illuminated, the vehicle displayed a “turn car off” warning, the door locks repeatedly cycled, the climate control stopped working, and the infotainment/navigation screen shut off and restarted. A mechanic subsequently determined that the sunroof wiring harness had melted and required replacement. I was informed that the wiring harness (part number 5NA971648C) is unavailable and has been placed under Volkswagen’s “quality inspection” process due to suspected fire-hazard concerns. Volkswagen reportedly no longer supplies this harness separately, requiring replacement of the entire sunroof assembly, including the glass, even though the glass is not the source of the problem. The repair is estimated at $3,900 and requires extensive labor, including dashboard removal and a VIN-specific part from Germany. My primary concern is safety, not cost. A wiring harness that melts and produces enough smoke to fill a vehicle’s cabin could potentially cause a fire, damage other electrical systems, or endanger occupants. I am concerned other owners may face the same hazard. I request that the federal safety agency investigate whether the sunroof wiring harness or associated electrical system in 2018 Volkswagen Tiguan vehicles presents a safety defect, review similar reports, and determine whether further investigation or corrective action is warranted.

Filed Nov 15, 2023 · Lights · NC

Low beam on Both headlights failed without any explanation. Everything was checked. The bulbs, the fuses, the relay, and the cause of the issue is still not known.

Filed Sep 8, 2022 · Lights · IL

The light of the roof inside. Mainly problem of a lot of cars !

Filed Jan 30, 2020 · Lights · 50 miles · MA

Tl* the contact owns a 2018 volkswagen tiguan. The contact stated that the exterior lights are too sensitive and come on with shadows and anger driver's in front of the contact. For driver's following the contact it could appear as if the vehicle was applying the brakes. (mastria volkswagen of raynham 1619 new state hwy, raynham, ma 02767, (508) 802-9555) stated that the lights operated as designed and could not be changed. The manufacturer was made aware of the issue. The failure mileage was 50.

Filed May 2, 2019 · Electrical, Lights · 60 miles · VA

Tl* the contact owns a 2018 volkswagen tiguan. The contact stated that the seat belt indicator flashed and a chime was heard even when the driver's seat belt was secured. Flow volkswagen of charlottesville (1313 richmond rd, charlottesville, va 22911, (434) 296-4147) was notified several times, but was unable to replicate the failure. The vehicle was currently at the dealer being diagnosed. In addition, there was a delay in providing the part concerning an unknown recall for the ambient lighting. The vehicle was not included in the federal safety agency action numbers: ea18005 (seat belts) and pe18001 (seat belts); however, the failure was related. The manufacturer was notified of the seat belt failures. The vehicle was not repaired. The approximate failure mileage was 60. ..*bf

Filed Apr 13, 2019 · Lights · 500 miles · LA

Takata recall. I got a recall on september of the ambient light bar and I have been waiting to put it back on over a half year. When can I finish this？

Filed Dec 6, 2018 · Lights · 11,000 miles · PA

The exterior lighting "headlights" are a serious safety hazard considering they provide very poor visibility when driving at night or in rain. I barely missed hitting an object in the street that was less than 30 feet to the right and in front of me. I was driving less than 20 MPH. There is zero visibility when driving in rain at night. I would rate these headlights a 1 out of 10 when moving and a 3 out of 10 when stationary. I feel these headlights are so inferior that they pose a real danger to anyone driving a vw tiguan. The lack of visibility is so deficient in illumination that I am not going to drive this vehicle at night unless necessary. Too dangerous.

Filed Nov 5, 2018 · Lights · 600 miles · CA

Headlight sensitivity when in auto mode is super sensitive. Headlights automatically turn on and off depending on orientation to sun and whether briefly in shade such as driving under a bridge or under trees for even a few seconds. All exterior lights become activated and de-activated by the auto system causing other drivers to misinterpret what the car is doing (I.e. Braking) which may lead to an accident. No method of adjusting auto on sensitivity or delay is provided in this particular car. I noticed this because my android auto navigation kept switching from night mode to daylight mode. This caused me to check the headlight on indicator light which matched the status of the nav system.

Filed Oct 27, 2018 · Lights · 8,000 miles · GA

Panoramic sunroof LED ambient panel lights recall resulting in darker lighting inside vehicle which makes me more afraid at night and was a false advertisement feature as the original lighting was what attracted me to the vehicle upon lease agreement.no effort has been made to repair the lighting defect caused by recall.

Filed Sep 28, 2018 · Lights · VA

The backup lights on this car are almost non-existant and even with the camera its difficult to see to back up. I worry that no one notices I am backing up and therfore this could cause an accident or injury.