Trailer Brakes
A loaded trailer that weighs more than 450 kg (1,000 lbs) needs to have its own brake system that is adequate for the weight of the trailer. Be sure to read and follow the instructions for the trailer brakes so they are installed, adjusted, and maintained properly.
Because the vehicle has antilock brakes, do not try to tap into the vehicle's hydraulic brake system.
If you do, both brake systems will not work well, or at all.
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 ...
Cargo Cover
For vehicles with a cargo cover, use it to cover items in the rear of the vehicle.
To remove the cover from the vehicle, pull both ends toward each other. To reinstall,
place each end of the cover ...
Blind Spot Mirrors
The blind spot mirror is a small convex mirror built into the upper and outer
corner of both outside mirrors. It can show objects that may be in the vehicle's
blind zone. ...





