See also:

Liftgate Release
To unlock the liftgate, use the power door lock switch or the remote keyless entry transmitter. The liftglass will also unlock when the liftgate is unlocked. Press the button on the liftglass to op ...

Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. TPMS sensors are mounted on each tire and wheel assembly, except the spare tire. The TPMS ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...