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:
Feature Settings Menu Items
The following customization features allow you to program settings to the vehicle:
DISPLAY IN ENGLISH
This feature will only display if a language other than English has been set. This feature allow ...
Fuel Gauge
Metric
English
When the ignition is on, the fuel gauge shows about how much fuel is left in the fuel tank.
An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on.
The ...
Brake Fluid
The brake master cylinder reservoir is filled with DOT 3 brake fluid. See Engine Compartment Overview on page 10‑6 for the location of the reservoir.
There are only two reasons why the brake ...