my chevrolet cruz 2011 won't start, it says immobilizer key incorrect
car won't start, it says immobilizer key incorrect
Then something has happened to the security system. You can try a mobile locksmith but I’m afraid that your going to have to tow it to the dealership to have it fully checked out, and reprogrammed.
The car can immobilize itself for a variety of reasons. Most likely is the anti-theft system, as yours says incorrect key. You'll need a dealer or maybe a locksmith to provide the correct key or reprogram yours while security is on, and then reset the security system.