Multi-Displacement System (MDS) (If Equipped) — 5.7L Engine Only

This feature offers improved fuel economy by shutting off four of the engine’s eight cylinders during light load and cruise conditions. The system is automatic with no driver inputs or additional driving skills required.

NOTE:
The MDS system may take some time to return to full functionality after a battery disconnect.

    See also:

    Bi-Level Mode
    Air comes from the instrument panel outlets, floor outlets and defrost outlets. A slight amount of air is also directed through the side window demister outlets. NOTE: In many temperature posi ...

    Daytime Running Lights — If Equipped
    The front turn signal lamps will turn on as Daytime Running Lights whenever the ignition is ON, the engine is running, the headlight switch is off, the parking brake is released and the shift le ...

    Compass Variance
    Compass Variance is the difference between Magnetic North and Geographic North. To compensate for the differences the variance should be set for the zone where the vehicle is driven, per the zon ...