Engine Coolant Heater
The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant heater at least four hours before starting the vehicle. An internal thermostat in the plug-end of the cord will prevent engine coolant heater operation at temperatures above −18°C (0°F).
See also:
Dinghy Towing
Two-Wheel-Drive Vehicles
Notice: If the vehicle is towed with all four wheels on the ground, the drivetrain components could be damaged.
The repairs would not be covered by the vehicle warranty. D ...
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...
Pulling a Trailer
Here are some important points:
• There are many laws, including speed limit restrictions that apply to trailering. Check for legal requirements.
• Consider using sway control.
See Towing Equip ...