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:
Fuel Economy Light
For vehicles with the fuel economy mode light, it comes on when the eco (economy)
switch, located on the center console near the shifter, is pressed. For vehicles
with a Driver Information Cente ...
Lane Departure Warning (LDW) Light
For vehicles with the lane departure warning system, this light is located on
the center of the instrument panel. This light briefly comes on green while starting
the vehicle.
If it does not, h ...
Braking
Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time.
Average driver reaction time is about three-quarter ...