The main components of your instrument panel are the following:

1. Rear Reading Lamp Button. See Rear Reading Lamps .

2. Cruise Control Button. See Cruise Control .

3. Air Outlets. See Outlet Adjustment .

4. Turn Signal/Multifunction Lever. See Turn Signal/Multifunction Lever .

5. Instrument Panel Cluster. See Instrument Panel Cluster .

6. Windshield Wiper/Washer Controls. See Windshield Wipers and Windshield Washer .

7. Climate Control System. See Climate Control System .

8. Exhaust Brake Button. See Diesel Engine Exhaust Brake .

9. Heated Mirror Button (If Equipped). See Outside Heated Mirrors .

10. High Idle Button. See "Manual High Idle System" under Starting the Diesel Engine . Power Take Off (PTO) (If Equipped). See Power Take-Off (PTO) .

11. Front Panel Release. See Lifting the Front Panel .

12. Tilt Steering Column. See Tilt Wheel .

13. Horn. See Horn .

14. Air Brake Controls (If Equipped). See Parking Brake .

15. Two-Speed Rear Axle Button. See Two-Speed Rear Axle Electric Shift Control . Air Suspension Indicator (If Equipped). See Air Suspension . Air Suspension Button (If Equipped). See Air Suspension . Differential Lock Button (If Equipped). See Rear Axle Differential Lock Control .

16. Audio System. See Audio System(s) .

17. Marker and Clearance Lamp Button. See Marker Lamps .

18. Overdrive Defeat Button. See "Overdrive Defeat" under Automatic Transmission Operation .

19. Cigarette Lighter. See Ashtray(s) and Cigarette Lighter .

20. Traction Control Button. See Traction Control System (TCS) .

21. Diesel Particulate Filter Button. See Diesel Particulate Filter .