▫ Brake/Transmission Shift Interlock System . . .489
▫ Eight-Speed Automatic Transmission — If
Equipped ...........................490
▫ Six-Speed Automatic Transmission — 1500 Models
Only (If Equipped) ....................499
▫ Six-Speed Automatic Transmission — 2500/3500
Models Only ........................511
䡵 FOUR-WHEEL DRIVE OPERATION — IF
EQUIPPED ...........................522
▫ Manually Shifted Transfer Case —
If Equipped..........................522
▫ Electronically Shifted Transfer Case (Four-Position
Switch) — If Equipped .................526
▫ Electronically Shifted Transfer Case (Five-Position
Switch) — If Equipped .................533
▫ Five-Position Electronically Shifted Transfer Case
(Eight Speed Transmission Only ) — If
Equipped ...........................538
䡵 AIR SUSPENSION SYSTEM (1500 MODELS) — IF
EQUIPPED ...........................545
▫ Description ..........................545
▫ Air Suspension Modes ..................550
▫ Electronic Vehicle Information Center
(EVIC)/Driver Information Display (DID) Display
Messages ...........................552
▫ Operation ...........................552
䡵 AIR SUSPENSION SYSTEM (2500/3500 MODELS)
— IF EQUIPPED .......................554
▫ Description ..........................554
▫ Air Suspension Modes ..................556
470 STARTING AND OPERATING