
The rear light switch of the Tayron is set to the "on" position, so it stays on. Turn it off by pressing the REAR switch: There is a master switch in the front, one for turning on the interior lights and one labeled REAR to turn on or off the rear lights. Try pressing the REAR switch located above the rearview mirror in the cabin, then turn off the rear light switch to fully shut it off. There are three settings for interior lights: Generally, the interior light switch has three settings: always on, always off, and a middle setting where the light turns on when the door opens and off when it closes. Check the current setting of the light switch.

My Tayron also had this issue with the rear cabin light, and it turned out the roof control switch was stuck. models have a door-controlled switch for the rear lights - if the door isn't properly closed or the sensor malfunctions, the light stays on. Another common reason is rear passengers manually turning on the light and forgetting to switch it off. There could also be a short circuit issue - my friend's car had its trunk wiring harness crushed, causing a short that kept the rear light illuminated. I recommend first checking if all doors are properly closed, then try holding down the switch to see if it turns off. If that doesn't work, you'll need to disassemble and inspect the wiring, as keeping the light on constantly not only drains the battery but also shortens the bulb's lifespan.

The rear light staying on is actually not a complicated issue. From the feedback I've received from Tayron owners, the most common cause is the door not being closed properly, or a faulty door lock sensor. Another possibility is a broken rear light switch that doesn't respond when pressed, which would require replacing the switch. It could also be an issue with the linkage between the rear light and the trunk light, as the Tayron's rear light is connected to the trunk light—if the trunk isn't properly closed, it can trigger the rear light to stay on. I once fixed it myself by removing the rear light switch and cleaning the dirty contacts. If you can't resolve it yourself, visiting a 4S shop to adjust the vehicle computer parameters might help, as Volkswagen's onboard systems occasionally act up.

The rear interior light staying on could be due to a faulty switch module or door sensor malfunction. In models, the rear light control logic is: automatically turns on when doors open, and delays turning off after doors close. If the sensor mistakenly detects a door as open, the light remains illuminated. Another scenario is short circuits caused by modified wiring, such as incorrect installation of dash cam power lines. I once handled a Tiguan case triggered by aftermarket reverse camera installation. A commonly overlooked cause: rear passengers accidentally kicking the switch, leaving it stuck in the ON position. Try using a toothpick to toggle the switch contacts - sometimes manual reset is needed when jammed. If unresolved, visit a dealership to read fault codes with diagnostic tools - Volkswagen's electrical systems are quite sensitive.

Last time on a long drive with the Tiguan, I noticed the rear cabin light stayed on the entire trip. Later, it was diagnosed as a faulty door control module. The rear light's on/off function is controlled by sensors on the B-pillar—moisture or dust on these sensors can cause false triggers. Another common cause is accidentally setting the reading light knob to the constant-on position. The knob's middle position activates the light when doors open, while turning it fully shuts it off, though Volkswagen's design is prone to passenger mishandling. An improperly closed trunk door can also trigger the rear light. For nighttime parking, it's advisable to wait 30 seconds after engaging the handbrake to observe if the light turns off automatically—if it does, it's likely a door control logic issue; if not, it may indicate a hardware switch failure. Additionally, check for short circuits in the rear USB ports, as some owners have reported similar faults after modifying charging ports.

The constant illumination of the rear light in the Tayron typically involves three aspects: control system issues, physical switch failures, or circuit abnormalities. Having disassembled several vehicles, I've found that prolonged use can cause oxidation of the rear light switch contacts, leading to sticking. Additionally, misalignment of the magnetic reed in the door lock sensor can prevent detection of the metal shield when the door is closed, keeping the light on. Another potential issue is water ingress in the fuse box causing relay adhesion, resulting in continuous power to the light circuit. For those with DIY skills, you can test it yourself: open the fuse box and remove the rear light fuse—if the light turns off, the issue is with the control system; if it stays on, the physical switch is faulty. As a side note, Volkswagen's light circuit boards are particularly sensitive to moisture, and such faults are common during the rainy season.


