Lamp Messages

AUTOMATIC LIGHT CONTROL OFF

This message displays when the automatic headlamps are turned off.

This message clears itself after 10 seconds.

AUTOMATIC LIGHT CONTROL ON

This message displays when the automatic headlamps are turned on.

This message clears itself after 10 seconds.

TURN SIGNAL ON

This message displays and a chime sounds if a turn signal is left on for 1.2 km (0.75 mi). Move the turn signal/multifunction lever to the off position.

    See also:

    Checking Brake Fluid
    Check brake fluid by looking at the brake fluid reservoir. See Engine Compartment Overview on page 10‑6. The fluid level should be above MIN. If it is not, have the brake hydraulic system che ...

    Engine Overheating
    If the vehicle has the Duramax® Diesel engine, see the Duramax Diesel Supplement for more information. The vehicle has several indicators to warn of engine overheating. There is a coolant temperatu ...

    Selecting the Right Engine Oil
    Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11‑12. Specification Use and ask for licensed en ...