OnStar Services

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What to Use
When windshield washer fluid is needed, be sure to read the manufacturer's instructions before use. If operating the vehicle in an area where the temperature may fall below freezing, use a flu ...

Steering Wheel Adjustment
To adjust the steering wheel: 1. Pull the lever (A) down. 2. Move the steering wheel up or down. 3. Pull or push the steering wheel closer or away from you. 4. Lift the lever (A) up to lock t ...

Automatic Transmission Fluid
How to Check Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the v ...