Grade Braking

The Grade Braking shift modes can be activated by pressing the button on the end of the shift control lever. While in Range Selection Mode, Grade Braking is deactivated allowing the driver to select ...

All-Wheel Drive

If the vehicle has this feature, engine power is sent to all four wheels when extra traction is needed. This is like four-wheel drive, but there is no separate lever or switch to engage or disengage ...

See also:

Topping up the oil
Your vehicle warranty may be invalidated if damage is caused by using oil that does not meet the required specification. Failure to use an oil that meets the required specification could cause exce ...

Lamp Messages
SERVICE LEFT HEADLAMP ASSEMBLY On some models, this message will be displayed when the left headlamp is out and needs to be serviced. See “LED Lighting” in LED Lighting   for more inf ...

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 veh ...