OnStar Services

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How to Add Automatic Transmission Fluid
Refer to the Maintenance Schedule to determine what kind of transmission fluid to use. See Recommended Fluids and Lubricants. If the fluid level is low, add only enough of the proper fluid to b ...

Tire and Loading Information Label
Label Example A vehicle-specific Tire and Loading Information label is attached to the vehicle center pillar (B-pillar). With the driver door open, you will find the label attached below the do ...

Erasing Universal Home RemoteButtons
To erase programming from the three Universal Home Remote buttons do the following: 1. Press and hold down the two outside buttons until the indicator light begins to flash, after 20 seconds. Do ...