Turn Signals When Towing a Trailer
The turn signal indicators on the instrument panel flash whenever signaling a turn or lane change. Properly hooked up, the trailer lamps also flash, telling other drivers the vehicle is turning, changing lanes or stopping.
When towing a trailer, the arrows on the instrument panel flash for turns even if the bulbs on the trailer are burned out. Check occasionally to be sure the trailer bulbs are still working.
See also:
Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it impossible to steal. ...
Vehicle Overview
The 2011 GMC Yukon is the middle child among GM's full-size SUVs. Based on
price and equipment, the Yukon sits squarely between the Chevrolet Tahoe and
Cadillac Escalade. Four-wheel drive is avail ...
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 ...





