Important safety notes

Service products include the following: • fuels (e.g. gasoline, diesel) • additives for exhaust gas aftertreatment (DEF) • lubricants (e.g. engine oil, transmission oil) • coolant †...

Fuel

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See also:

Battery Voltage and Charging Messages
BATTERY SAVER ACTIVE This message displays when the system detects that the battery voltage is dropping below expected levels. The battery saver system starts reducing certain features of the veh ...

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 the v ...

Important safety notes
The EASY-ENTRY/EXIT feature makes getting in and out of your vehicle easier. You can activate and deactivate the EASYENTRY/ EXIT feature in the on-board computer. WARNING   You must ...