See also:

Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery. To prevent battery discharge while driving, the following systems are reduced automatically in two stages and then turned off: ...

Vehicle Data Recording and Privacy
Your GM vehicle has a number of sophisticated computers that record information about the vehicle’s performance and how it is driven. For example, your vehicle uses computer modules to monitor ...

Shifting Out of Park (P)
Your vehicle has an automatic transmission shift lock control system. You have to fully apply the regular brakes first and then press the shift lever button before you can shift from PARK (P) when ...