What is the reason why the rear door cannot be opened after unlocking the T-Roc with the key?
2 Answers
The reason why the rear door cannot be opened after unlocking the T-Roc with the key is that there is a problem with the outer door handle cable or the door lock mechanism. The specific cause needs to be checked at a 4S shop or auto repair shop. Active working method: The principle is to control the door through the vehicle's electronic module and body control module. Simply press the key button to send an unlock/lock command, and after verification by the vehicle's electronic module, the door can be opened/closed. Coil induction working method: This mainly involves placing an encrypted chip inside the key. During the unlocking process, the vehicle's RF transceiver verifies whether the key matches to determine if the engine can be started. This is mainly used in special cases where the key battery is dead, allowing the car to still start normally.
I usually drive the T-Roc to commute, and I've encountered the awkward situation where the rear doors wouldn't unlock with the key. At first, I thought the key battery was dead, but checking it didn't help. Later, I discovered that the child safety lock switch on the edge of the rear door had been accidentally activated. This switch is located on the door edge and can be turned off with a simple flick. If it's not this, the door lock module might be aging and stuck, especially in northern winters when cold air makes plastic parts brittle and more prone to failure. I recommend first trying to restart the car key or checking if there's any debris stuck in the door lock. If that doesn't work, it's best to visit a repair shop to check the lock mechanism or wiring to avoid travel inconveniences.
