Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them.
• To mute a call, press 
, and then say “Mute call.” . To cancel mute, press , and then say “Un-mute call.”
See also:
Scheduling Service Appointments (U.S. and Canada)
When the vehicle requires warranty service, contact your dealer and request an appointment. By scheduling a service appointment and advising the service consultant of your transportation needs, your d ...
Headlamp Aiming
Headlamp aim has been preset and should need no further adjustment.
If the vehicle is damaged in a crash, the headlamp aim may be affected.
If adjustment to the headlamps is necessary, see your deal ...
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 ...