Theft-Deterrent Feature

TheftLock® is designed to discourage theft of the vehicle's radio by learning a portion of the Vehicle Identification Number (VIN).

The radio does not operate if it is stolen or moved to a different vehicle.

    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 Oil Change
    When the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system might not ...

    2011 GMC Sierra 2500HD Review
    The "professional grade" brand unveiled the 2011 GMC Sierra Heavy Duty lineup at the 2010 NTEA Work Truck Show. Most of the technical specifications of GM's HD pickups are identical, but ...