Summer Operation

The engine cooling system in air-conditioned vehicles must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to protect against engine overheating. A solution of 50% ethylene glycol antifreeze coolant and 50% water is recommended.

Refer to “Maintenance Procedures” in “Maintaining Your Vehicle” for proper coolant selection.

    See also:

    Selection Of Lubricant
    It is important that the proper lubricant is used in the transmission to assure optimum transmission performance. Use only the manufacturer’s recommended transmission fluid. Refer to “Fluids, ...

    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 additio ...

    How To Engage The Automatic Locking Mode
    1. Buckle the combination lap and shoulder belt. 2. Grasp the shoulder portion and pull downward until the entire belt is extracted. 3. Allow the belt to retract. As the belt retracts, you will hear ...