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 ...

After Starting
The idle speed is controlled automatically and it will decrease as the engine warms up. ...

Working With Automated Systems
This method is used in instances where one generally has to press numbers on the mobile phone keypad while navigating through an automated telephone system. You can use your Uconnect™ Phone to ...