The main reasons why the steering wheel lock cannot be started with the car key are either the automatic locking of the steering wheel or the automatic transmission not being properly engaged in the P position. Reasons why the car key cannot start the engine: The steering wheel automatically locks, primarily for anti-theft purposes. When the vehicle is turned off and the steering wheel is turned to a certain angle, the automatic lock is triggered. At this point, attempting to start the engine with the key will not work; residual water from washing the car enters the keyhole, preventing the locking mechanism from releasing when the key is inserted, thus making it impossible to turn the key. The working principle of a car key involves emitting a weak radio wave from the key, which is received by the car's antenna. The electronic control unit then identifies the signal code, and the system's actuator performs the locking or unlocking action. Solutions when the car key cannot start the engine: First, insert the key and press the brake pedal, then turn the steering wheel left and right. The steering wheel is in a locked state at this time, but it can still be slightly turned. Simultaneously, turn the key to complete the steering wheel unlocking procedure, allowing the key to turn; alternatively, heat the key with a lighter before inserting it, wait a few seconds, and then it can be turned.
