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 ...

Customer Key Programming
Programming Key Fobs or RKE transmitters may be performed at an authorized dealer. ...

HSA Activation Criteria
The following criteria must be met in order for HSA to activate: • Vehicle must be stopped. • Vehicle must be on a 6% (approximate) grade or greater hill. • Gear selection matches vehicle ...