Infotainment
Read the following pages to become familiar with the audio system's features.
WARNING
Taking your eyes off the road for extended periods could cause a crash resulting in injury or death to you or others. Do not give extended attention to entertainment tasks while driving. This system provides access to many audio and non-audio listings.
To minimize taking your eyes off the road while driving, do the following while the vehicle is parked: . Become familiar with the operation and controls of the audio system.
○ Set up the tone, speaker adjustments, and preset radio stations.
For more information, see Defensive Driving on page 9‑3.
This vehicle's infotainment system may be equipped with a noise reduction system which can work improperly if the audio amplifier, engine calibrations, exhaust system, microphones, radio, or speakers are modified or replaced. This could result in more noticeable engine noise at certain speeds.
Notice: Contact your dealer before adding any equipment. Adding audio or communication equipment could interfere with the operation of the engine, radio, or other systems, and could damage them. Follow federal rules covering mobile radio and telephone equipment.
The vehicle has Retained Accessory Power (RAP). With RAP, the audio system can be played even after the ignition is turned off. See Retained Accessory Power (RAP) on page 9‑25 for more information.
Navigation System
For vehicles with a navigation system, see the separate navigation manual.
See also:
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...
DVD Distortion
Video distortion can occur when operating cellular phones, scanners, CB radios,
Global Positioning Systems (GPS)*, two-way radios, mobile faxes, or walkie talkies.
It might be necessary to turn off ...
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 ...