What to Use
Refer to Recommended Fluids and Lubricants to determine what kind of lubricant to use.
See also:
Compass Variance (Zone) Procedure
1. Do not set the compass zone
when the vehicle is moving.
On an automatic transmission
vehicle, only set it when the
vehicle is in P (Park). On a
manual transmission vehicle,
only set it w ...
Recommended Fuel
If the vehicle has a V6 engine,
use regular unleaded gasoline with
a posted octane rating of 87 or
higher. If the octane rating is less
than 87, an audible knocking noise,
commonly referred ...
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 ...






