Page 132 of 490

When the System Does Not Seem to
Work Properly
If the URPA system will not activate due to a temporary
condition, the message PARKING ASSIST OFF will be
displayed on the DIC and a red light will be shown on the
rear URPA display when the shift lever is moved into
REVERSE (R). This occurs under the following
conditions:
The driver disables the system.
The parking brake pedal is depressed.
The ultrasonic sensors are not clean. Keep the
vehicle’s rear bumper free of mud, dirt, snow, ice and
slush. For cleaning instructions, seeWashing Your
Vehicle on page 5-116.
A trailer was attached to the vehicle, or a bicycle or
an object was hanging out of the trunk during the last
drive cycle, the red light may illuminate in the rear
display. Once the attached object is removed, URPA
will return to normal operation.
A tow bar is attached to the vehicle.
The vehicle’s bumper is damaged. Take the vehicle
to your dealer/retailer to repair the system.
Other conditions may affect system performance,
such as vibrations from a jackhammer or the
compression of air brakes on a very large truck.
If the system is still disabled, after driving forward at
least 15 mph (25 km/h), take the vehicle to your
dealer/retailer.
2-54
Page 419 of 490

Do not clean your vehicle using:
A knife or any other sharp object to remove a soil
from any interior surface.
A stiff brush. It can cause damage to your vehicle’s
interior surfaces.
Heavy pressure or aggressive rubbing with a
cleaning cloth. Use of heavy pressure can damage
your interior and does not improve the effectiveness
of soil removal.
Laundry detergents or dishwashing soaps with
degreasers can leave residue that streaks and
attracts dirt. For liquid cleaners, about 20 drops
per gallon (3.78 L) of water is a good guide.
Use only mild, neutral-pH soaps.
Too much cleaner that saturates the upholstery.
Organic solvents such as naptha, alcohol, etc. that
can damage your vehicle’s interior.
Fabric/Carpet
Use a vacuum cleaner with a soft brush attachment
frequently to remove dust and loose dirt. A canister
vacuum with a beater bar in the nozzle may only
be used on oor carpet and carpeted oor mats.
For any soil, always try to remove it rst with plain
water or club soda. Before cleaning, gently remove as
much of the soil as possible using one of the following
techniques:
For liquids: gently blot the remaining soil with a
paper towel. Allow the soil to absorb into the
paper towel until no more can be removed.
For solid dry soils: remove as much as possible
and then vacuum.
5-113
Page 486 of 490

Power (cont.)
Lumbar Controls........................................... 1-6
Retained Accessory (RAP)............................2-35
Seat ............................................................ 1-5
Steering Fluid.............................................5-39
Tilt Wheel and Telescopic Steering Column....... 3-7
Windows....................................................2-25
Privacy..........................................................7-18
Event Data Recorders..................................7-19
Navigation System.......................................7-20
OnStar .......................................................7-20
Radio Frequency Identi cation.......................7-20
Programmable Automatic Door Locks.................2-20
R
Radio Frequency Identi cation (RFID), Privacy....7-20
Radio(s)........................................................3-83
Radios
Navigation/Radio System,
see Navigation Manual............................3-111
Reception.................................................3-125
Theft-Deterrent..........................................3-124
Rainsense™ Wipers........................................3-10
Reading Lamps..............................................3-21
Rear Axle......................................................5-51
Limited-Slip.................................................. 4-7
Rear Door Security Locks................................2-20Rearview Mirror, Automatic Dimming with
OnStar
®.....................................................2-50
Reclining Seatbacks.......................................... 1-8
Recommended Fluids and Lubricants.................6-14
Recreational Vehicle Towing.............................4-28
Remote, Keyless Access System........................ 2-9
Remote Keyless Entry (RKE) System.................. 2-6
Remote Keyless Entry (RKE) System, Operation . . . 2-7
Remote Vehicle Start.......................................2-16
Removing the Flat Tire and Installing the
Spare Tire................................................5-105
Removing the Spare Tire and Tools.................5-104
Replacement Bulbs.........................................5-57
Replacement Parts, Maintenance......................6-16
Reporting Safety Defects
Canadian Government..................................7-17
General Motors...........................................7-17
United States Government............................7-16
Restraint System Check
Checking the Restraint Systems....................1-72
Replacing Restraint System Parts
After a Crash..........................................1-73
Retained Accessory Power (RAP)......................2-35
Roadside
Service........................................................ 7-7
Rocking Your Vehicle to Get it Out....................4-22
Routing, Engine Drive Belt...............................6-17
Running Out of Fuel........................................2-49
10