Peterbilt Medium Duty Trucks Operator's Manual after 1-07

Operating Instructions
WARNING! Do not drive with worn or dirty wiper
blades. They can reduce visibility, making driving
hazardous. Clean the blades regularly to
remove road film and wax build-up. Use an alcohol-based
cleaning solution and a lint-free cloth,
and wipe along the blades.
Ignition Key Switch
Instruments and Controls
The engine ignition key switch (located to the left of the steering
column) has four positions: ACC (Accessories), OFF, IGN
& ACC, and IGN & START.
OFF: In this position all accessories are OFF (except those
listed below) and you can remove the key.
• The following lights and accessories have power when
the key is in the OFF position:
WINDSHIELD
WASHER FLUID
TANK
Windshield Washer Fluid Tank
02391
Clean all inside and outside windows regularly. Use an alcohol-based
cleaning solution and wipe dry with either a lintfree
or a chamois cloth. Avoid running the wiper blades over
a dry windshield to prevent scratching the glass. Spray on
washer fluid first. A scratched windshield will reduce visibility.
- brake lights - marker lamps
- cigarette lighter - headlights
- tail lights - radio station memory
- horn - instrument lights
- emergency hazard flasher
- dome and courtesy lamps (on doors)
- auxiliary Power/Body or Trailer
NOTE: In the OFF position, fuel is cut off by a solenoid
valve located on the left side of the engine,
near the ejection pump.
ACC (Accessory): With the key in this position you can play
the radio, defrost mirrors (if equipped with mirror heat) or use
other accessories.
Medium Duty (R10/06) Y53-6008 – 33 –