How to Unlock a Locked Engine?
2 Answers
Solution: Simply use the key to unlock it, as aftermarket keys often have poor recognition. If the original factory key also fails to unlock, disconnect the negative terminal of the battery for a while. Wait for the engine's protection data to clear, then reconnect after about 10 seconds. Below are related introductions to engine locking: 1. If the engine is locked due to a collision causing it to sink, repair the vehicle, and the lock will naturally be released once fixed. 2. If the lock is caused by replacing system components with non-certified ones, it is recommended to visit a 4S shop or a qualified repair point for unlocking.
Don’t panic if you encounter a locked engine—many cars come with an anti-theft system that locks the engine as a common protective mechanism. First, try using the remote key to unlock the car doors, then get in, close the door, insert the key, press the brake, and start the engine—the system will often re-recognize the legitimate key signal at this point. If that doesn’t work, bring the key close to the start button and try again (keyless start vehicles have this function). If all else fails, disconnect the negative terminal of the battery for a few minutes to reset the entire vehicle’s electronic system—just remember to lower the windows beforehand to avoid being trapped inside afterward. The ultimate solution is to contact a 4S dealership for remote unlocking or to use a diagnostic tool to deactivate the anti-theft mode. Avoid forcing a start to prevent damaging the starter.
