Power Door Lock Switch; Jacobs Engine Brake Or Cummins "C" Brake Switch - Peterbilt 348 2017 Operator's Manual

Power Door Lock Switch

Your vehicle is probably equipped with
power door locks. Power door lock
rocker switches are located on the
door pads (switch on the driver side
door pad is shown above).
To lock or unlock both cab doors
as well as a sleeper door, depress
any door lock switch at the end that
displays a closed or open padlock
symbol, respectively, on the switch
face.
(03/17)
DASH- AND DOOR-MOUNTED CONTROLS
Jacobs Engine Brake or
Cummins "C" Brake Switch
The ON/OFF switch turns the system
ON or OFF. The second switch
performs the progressive braking
function that controls the amount of
retarding.
•
If you have the two-mode system,
you can select HIGH or LOW.
Y53-6060-1C1
•
If you have the three-mode
system, you can select low,
medium, or high retarding.
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