See also:

Operation
Radio with CD, Radio with CD/USB Similar Radio with CD, DVD, and USB Port The vehicle may have one of these radios as its audio system. ...

Safety Locks
The rear door safety locks switch is on the instrument panel. Rear door safety locks prevent passengers from opening the rear doors from inside the vehicle. Press to activate the safety locks. ...

How to Check Lubricant
2500HD with 6.0 L All Other Series and Engines To get an accurate reading, the vehicle should be on a level surface. • For all 4.3 L, 4.8 L and 5.3 L 1500 Series applications, the proper leve ...