See also:

Rear Window Wiper/Washer
The rear wiper and rear wash button is located on the instrument panel below the climate control system. (Rear Wiper): Press to turn the rear wiper on and off. The wiper speed cannot be changed. ( ...

Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail GMC, the letter should be addressed to: United States GMC Customer Assistance ...

How to Inspect the Engine Air Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required ...