How the System Works
Unless disabled, the URPA will turn on
automatically when the shift lever is moved into
REVERSE (R). When the system turns on,
the three lights on the display will illuminate for
one and a half seconds to let you know that
the system is working. If your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph
(5 km/h), the red light will ash to remind you that
the system does not work at speed greater
than 3 mph (5 km/h).
If an object is detected at a REVERSE (R) speed
of less than 3 mph (5 km/h), one of the following
will occur:
Description English Metric
amber light 5 ft 1.5 m
amber/amber lights 40 in 1.0 m
amber/amber/red lights &
continuous chime20 in 0.5 m
amber/amber/red lights
ashing & continuous
chime1 ft 0.3 m
A chime will sound the rst time an object is
detected between 20 inches (0.5 m) and 5 feet
(1.5 m) away.URPA cannot detect objects that are above liftgate
level. In order for the rear sensors to recognize
an object, it must be within detection range behind
the vehicle.
When the System Does Not Seem to Work
Properly
The light may ash red when the vehicle is in
REVERSE (R) if the ultrasonic sensors are not kept
clean. So be sure to keep your rear bumper free of
mud, dirt, snow, ice and slush. Other conditions that
may affect system performance include things like
the vibrations from a jackhammer or the
compression of air brakes on a very large truck. If
after cleaning the rear bumper and then driving
forward at least 15 mph (25 km/h), the display
continues to ash red, see your retailer.
If a trailer was attached to your vehicle, or a
bicycle or an object was on the back of, or hanging
out of your liftgate during your last drive cycle,
the light may also ash red. The light will continue
to ash whenever in REVERSE (R) until your
vehicle is driven forward at least 15 mph (25 km/h)
without any obstructions behind the vehicle.
For cleaning instructions, seeWashing Your
Vehicle on page 505.
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This light should come on, as a check to show
you it is working, when the ignition is on and the
engine is not running. If the light does not
come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A mis re condition has
been detected. A mis re increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis and
service may be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service may be
required.
If the Light Is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount
of cargo being hauled as soon as it is
possibleIf the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your retailer for service as
soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 417.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.
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Your Driving, the Road, and
Your Vehicle............................................ 358
Defensive Driving...................................... 358
Drunken Driving........................................ 359
Control of a Vehicle.................................. 362
Braking...................................................... 362
Anti-Lock Brake System (ABS).................. 363
Braking in Emergencies............................. 365
Traction Control System (TCS).................. 365
StabiliTrak
®System................................... 367
Steering.................................................... 369
Off-Road Recovery.................................... 372
Passing..................................................... 372
Loss of Control.......................................... 374
Driving at Night......................................... 375
Driving in Rain and on Wet Roads............ 376City Driving............................................... 380
Freeway Driving........................................ 381
Before Leaving on a Long Trip.................. 382
Highway Hypnosis..................................... 383
Hill and Mountain Roads........................... 384
Winter Driving........................................... 386
If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow ................................. 390
Rocking Your Vehicle to Get It Out........... 391
Loading Your Vehicle................................ 391
Towing........................................................ 396
Towing Your Vehicle ................................. 396
Recreational Vehicle Towing...................... 396
Level Control............................................. 398
Towing a Trailer........................................ 398
Section 4 Driving Your Vehicle
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