Engine Coolant Heater
The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged in at least four hours before starting.
An internal thermostat in the plug-end of the cord may exist which will prevent engine coolant heater operation at temperatures above −18°C (0°F).
If the vehicle has a diesel engine, see the Duramax Diesel supplement for more information.
See also:
Setting Cruise Control
If the cruise button is on when not in use, it could get bumped and go into cruise when not desired. Keep the cruise control switch off when cruise is not being used.
The cruise control light on the ...
Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer.
This can help to avoid situations that require heavy braking and sudden turns. ...
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps
A. Low-Beam Headlamp
B. High-Beam Headlamp
C. Sidemarker Lamp
D. Park/Turn Signal Lamp
To replace one of these bulbs:
1. Turn the tire to reach the access port cap located in the front of wheel ...





