C
Charles
Guest
This is the only solution I found on the Internet that actually worked! To be able to shift the car into reverse without cranking the engine, make sure your key (real or push button) is in the On position, not the Accessory position, and WITHOUT the engine running. And set a timer to make sure you leave it in reverse for the FULL 5 minutes. There is no telling how many owners the dealers have charged for unnecessary head unit replacements.