Wiper Blade Replacement
Windshield wiper blades should be inspected for wear or cracking.
See Maintenance Schedule on page 11‑3 for more information.
Replacement blades come in different types and are removed in different ways. To replace the wiper blade assembly:
1. Pull the windshield wiper arm away from the windshield.

2. Press the button in the middle of the wiper arm connector and pull the wiper blade away from the arm connector.
3. Install the new wiper blade and make sure the wiper blade locks into place.
For the proper size and type, see Maintenance Replacement Parts on page 11‑13.
Backglass Wiper Blade
To replace the backglass wiper blade:
1. Pull the wiper blade assembly away from the backglass.
The backglass wiper blade will not lock in a vertical position so care should be used when pulling it away from the vehicle.
2. Rotate the wiper blade assembly, hold the wiper arm in position, and push the blade away from the wiper arm.
3. Replace the wiper blade.
4. Return the wiper arm and blade assembly to the rest position on the glass.
See also:
Ultrasonic Parking Assist
If available, Ultrasonic Rear Parking Assist (URPA) system uses sensors on the rear bumper to assist with parking and avoiding objects while in R (Reverse). It operates at speeds less than 8 km/h (5 m ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...
Voltmeter Gauge
When the engine is not running, but the ignition is turned on, this gauge shows the battery's state of charge in DC volts.
When the engine is running, this gauge shows the condition of the charging ...





