GMC Terrain: 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 vehicle is equipped with the Tire Pressure Monitoring
System. If a diagnostics check is needed between e-mails, push
, and an Advisor can run a check.
OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be
downloaded. The vehicle can be remote started, if equipped, or the doors can be
unlocked from anywhere there is cell ...
See also:
Location of the fuse boxes
1 Engine compartment
2 Under the glove compartment
3 Under the glove compartment
4 Cargo area ...
Rolling code device equipment programming
Note: The assistance of a second person, may
make the following steps quicker and easier.
Once the button has been pressed there are
only 30 seconds in which to complete Step 3.
1. At the garage d ...
High-pressure headlight washing
High-pressure headlight washing consumes a
large quantity of washer fluid. To save fluid, the
headlights are washed using two alternatives:
• Low/high beam headlights on. The headlights
will ...
