Regional Haul Model Operator's Manual - Peterbilt Motors Company

OPTIONAL GAUGES
Press In For Washer Pump
Rotate To Change Wiper Mode
Press Button For ID and Clearance Lights Flash
If your ID and clearance lights are on, they will flash off.
Windshield Wipers/Washer
Your vehicle is equipped with a two-speed, intermittent
windshield wiper system. A seven-position rotary wiper
switch (located on the turn signal lever) operates the
windshield wipers and washer (see next illustration).
Rotate the end of the turn signal lever to change the wiper
mode.
NOTE: The ignition key must be turned to ON or
ACC for the wiper/washer switches to operate.
The first position after OFF is the intermittent #1 cycle.
The next positions are intermittent #2, #3, and #4. The last
CONTROLS AND DISPLAY
two positions are wiper low speed and wiper high speed.
See the wiper switch settings table that follows for intermittent
delay times.
WARNING! Clean blades regularly with a
damp cloth to remove road film and wax
build-up. Do not drive with worn or dirty wiper
blades. They can reduce visibility, making
driving hazardous which may lead to an injury
accident resulting in death or personal injury.
CAUTION:
• Do not use antifreeze or engine coolant in
the windshield washer reservoir—damage to
seals and other components will result.
If the electric pump is operated for a long
period (more than 15 seconds) with a dry reservoir,
the pump motor may be damaged.
To Wash The Windshield
Push the rotary wash/wipe knob in (towards steering column),
hold for more than 0.8 seconds and then release.
Hold the knob in to extend the washing cycle. After the
lever is released, the wipers will shut off automatically or
resume the wiper’s setting speed.
– 46 – Y53-6033 Regional Haul (R05/10)