OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview on page 14‑1 for more information.
See also:
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 ...
Object Detection System Messages
PARK ASST BLOCKED SEE OWNERS MANUAL
This message displays if there is something interfering with the park assist system. See Ultrasonic Parking Assist on page 9‑66 for more information.
PARK A ...
Horn
To sound the horn, press the center pad on the steering wheel. ...