Compass Calibration
Buick Rainier / Buick Rainier Owners Manual / Features and Controls / Mirrors / Automatic Dimming Rearview Mirror with OnStar® and Compass / Compass Calibration
Press and hold the on/off button to activate the compass calibration mode. CAL will be displayed in the compass window on the mirror.
The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or less until the display reads a direction.
See also:
Compass Variance
Compass variance is the difference between earth’s
magnetic north and true geographic north. The
mirror is set to zone eight upon leaving the factory.
It will be necessary to adjust the compass ...
Recommended Fluids and Lubricants
...
Remote Vehicle Start
With this feature the engine can be started from outside
of the vehicle. ...
