OnStar Services

See also:

The Inside
SUV fans should find plenty of familiar goodies: a high seating position, excellent forward sightlines — albeit a hefty blind spot in back — and room to stretch out. I found our tester's leath ...

Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule on page 11‑3. Tires are rotated to achieve a uniform wear for all tires. The first rotation is the most important. ...

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). For a description of how Grade Braking affects vehicle speed while the Tow/Haul Mode is activated, see Tow/Haul Mode on page 9 ...