See also:

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 ...

Manual Operation
(Power): Press to turn the climate control system on or off. (Fan Control): Turn to increase or decrease the fan speed. Adjusting the fan speed while in automatic mode places the fan under ma ...

Interior
The Yukon's dashboard has the same shape as its GM siblings. That's good news because the domed instrument panel, carlike dashboard and flush-mounted buttons make for a handsome design. This SUV ...