See also:

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 ...

Automatic Operation
1. Press the AUTO hard-key or soft-key button (9) on the Automatic Temperature Control (ATC) Panel. 2. Next, adjust the temperature you would like the system to maintain by adjusting the driver a ...

Coolant Level
The coolant bottle provides a quick visual method for determining that the coolant level is adequate. With the engine OFF and cold, the level of the engine coolant (antifreeze) in the bottle sho ...