How to Check Power Steering Fluid
Check the level after the vehicle has been driven for at least 20 minutes so the fluid is warm.
To check the power steering fluid:
1. Turn the ignition to LOCK/OFF and let the engine compartment cool down.
2. Wipe the cap and the top of the reservoir clean.
3. Unscrew the cap and pull it straight up.
4. Wipe the dipstick with a clean rag.
5. Replace the cap and completely tighten it.
6. Remove the cap again and look at the fluid level on the dipstick.

When the engine is hot, the level should be at the hot MAX level.
When the engine is cold, the fluid level should be between MIN and MAX on the dipstick.
See also:
EPB Release
To release the EPB, place the ignition in the ON/RUN position, apply and hold
the brake pedal, and push down momentarily on the EPB switch. If you attempt to
release the EPB without the brake peda ...
Removing the Flat Tire and Installing the Spare Tire
This vehicle may have aluminum wheels with exposed wheel nuts. Use the wheel
wrench to loosen all the wheel nuts. Do not remove them yet.
Or, this vehicle may have steel wheels with plastic covers. ...
Storing Name Tags
The system can store up to 30 phone numbers as name tags that are shared between the Bluetooth and OnStar systems.
The system uses the following commands to store and retrieve phone numbers:
► ...
