DIC Warnings and
Messages
Messages are displayed on the DIC
to notify the driver that the status
of the vehicle has changed and that
some action may be needed by
the driver to correct the condition.
Multiple messages may appear
one after another.
Some messages may not require
immediate action, but you can
press any of the DIC buttons on the
instrument panel or the trip odometer
reset stem on the instrument panel
cluster to acknowledge that you
received the messages and to
clear them from the display.
Some messages cannot be cleared
from the DIC display because they
are more urgent. These messages
require action before they can be
cleared. You should take anymessages that appear on the display
seriously and remember that clearing
the messages will only make the
messages disappear, not correct
the problem.
The following are the possible
messages that can be displayed
and some information about them.
ALL WHEEL DRIVE OFF
If your vehicle has the All-Wheel
Drive (AWD) system, this message
displays when there is a compact
spare tire on the vehicle, when
the Antilock Brake System (ABS)
warning light comes on, or when the
rear differential uid is overheating.
This message turns off when
the differential uid cools.
The AWD system is disabled until
the compact spare tire is replaced
by a full-size tire. If the warningmessage is still on after putting on
the full-size tire, you need to reset
the warning message. To reset the
warning message, turn the ignition
off and then back on again after
30 seconds. If the message stays on,
see your dealer/retailer right away.
SeeAll-Wheel Drive (AWD) System
on page 4-8for more information.
AUTOMATIC LIGHT
CONTROL OFF
This message displays when the
automatic headlamps are turned off.
This message clears itself after
10 seconds.
AUTOMATIC LIGHT
CONTROL ON
This message displays when the
automatic headlamps are turned on.
This message clears itself after
10 seconds.
3-56 Instrument Panel
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All-Wheel Drive (AWD)
System
If the vehicle has this feature, engine
power is sent to all four wheels when
extra traction is needed. This is like
four-wheel drive, but there is no
separate lever or switch to engage or
disengage the axle. It is fully
automatic, and adjusts itself as
needed for road conditions.
When using a compact spare tire on
the AWD equipped vehicle, the AWD
system automatically detects the
presence of the compact spare and
the AWD is disabled. To restore the
AWD operation and prevent
excessive wear on the AWD system,
replace the compact spare with a
full-size tire as soon as possible. See
Compact Spare Tire on page 5-83
for more information.
Steering
Power Steering
If power steering assist is lost
because the engine stops or the
system is not functioning, the vehicle
can be steered but it will take
more effort.
Variable Effort Steering
If the vehicle has this steering
system, the system continuously
adjusts the effort felt when steering
at all vehicle speeds. It provides
ease when parking, yet a rm, solid
feel at highway speeds.
Steering Tips
It is important to take curves at a
reasonable speed.
Traction in a curve depends on the
condition of the tires and the road
surface, the angle at which the curve
is banked, and vehicle speed. While
in a curve, speed is the one factor
that can be controlled.
If there is a need to reduce speed,
do it before entering the curve,
while the front wheels are straight.
Try to adjust the speed so you
can drive through the curve.
Maintain a reasonable, steady
speed. Wait to accelerate until out
of the curve, and then accelerate
gently into the straightaway.
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6. To prevent the battery from
draining while the vehicle is being
towed, remove the 50 amp
BATT1 fuse from the underhood
fuse block and store in a safe
location. SeeUnderhood
Fuse Block on page 5-94.
7. Release the parking brake.
Notice:If the vehicle is towed
without performing each of
the steps listed under “Dinghy
Towing,” the automatic
transmission could be damaged.
Be sure to follow all steps of
the dinghy towing procedure prior
to and after towing the vehicle.
Notice:If 65 mph (105 km/h)
is exceeded while towing
the vehicle, it could be damaged.
Never exceed 65 mph (105 km/h)
while towing the vehicle.Once the destination is reached:
1. Set the parking brake.
2. Reinstall the 50 amp BATT1 fuse
to the underhood fuse block.
3. Shift the transmission to
P (Park), turn the ignition
to LOCK/OFF and remove the
key from the ignition.
4. Disconnect the vehicle from the
towing vehicle.
Notice:Do not tow a vehicle
with the front drive wheels on the
ground if one of the front tires
is a compact spare tire. Towing
with two different tire sizes on the
front of the vehicle can cause
severe damage to the
transmission.Dolly Towing (All-Wheel-Drive
Vehicles)
All-wheel-drive vehicles must not be
towed with two wheels on the
ground. To properly tow these
vehicles, they should be placed on
a platform trailer with all four
wheels off of the ground or dinghy
towed from the front.
4-24 Driving Your Vehicle
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Tire Pressure Monitor
System.............................5-46
Tire Pressure Monitor
Operation..........................5-48
Tire Inspection and
Rotation............................5-52
When It Is Time for
New Tires.........................5-54
Buying New Tires................5-54
Different Size Tires and
Wheels.............................5-56
Uniform Tire Quality
Grading............................5-57
Wheel Alignment and
Tire Balance.....................5-58
Wheel Replacement.............5-59
Tire Chains.........................5-60
If a Tire Goes Flat...............5-61
Tire Sealant and
Compressor Kit..................5-62
Tire Sealant and
Compressor Kit Storage......5-70
Changing a Flat Tire............5-70
Removing the Spare Tire
and Tools.........................5-71
Removing the Flat Tire and
Installing the Spare Tire......5-74Secondary Latch System......5-78
Storing a Flat or Spare Tire
and Tools.........................5-80
Compact Spare Tire.............5-83
Appearance CareInterior Cleaning..................5-84
Fabric/Carpet......................5-85
Leather..............................5-86
Instrument Panel, Vinyl, and
Other Plastic Surfaces........5-86
Care of Safety Belts............5-86
Weatherstrips......................5-87
Washing Your Vehicle..........5-87
Cleaning Exterior
Lamps/Lenses...................5-87
Finish Care.........................5-87
Windshield, Backglass, and
Wiper Blades....................5-88
Aluminum or Chrome-Plated
Wheels and Trim...............5-89
Tires..................................5-90
Sheet Metal Damage...........5-90
Finish Damage....................5-90
Underbody Maintenance.......5-90
Chemical Paint Spotting........5-90
Vehicle Identi cationVehicle Identi cation
Number (VIN)....................5-91
Service Parts Identi cation
Label...............................5-91
Electrical SystemHigh Voltage Devices
and Wiring........................5-91
Add-On Electrical
Equipment........................5-92
Windshield Wiper Fuses.......5-92
Power Windows and Other
Power Options...................5-92
Fuses and Circuit Breakers. . . .5-92
Instrument Panel
Fuse Block.......................5-92
Underhood Fuse Block.........5-94
Capacities and Speci cationsCapacities and
Speci cations....................5-98
5-2 Service and Appearance Care
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Tire Sidewall Labeling
Useful information about a tire is
molded into its sidewall. The
examples below show a typical
passenger vehicle tire and a
compact spare tire sidewall.
(A) Tire Size
:The tire size is a
combination of letters and
numbers used to de ne a
particular tire’s width, height,
aspect ratio, construction
type, and service description.See the “Tire Size” illustration
later in this section for more
detail.
(B) TPC Spec (Tire
Performance Criteria
Speci cation)
:Original
equipment tires designed to
GM’s speci c tire performance
criteria have a TPC speci cation
code molded onto the sidewall.
GM’s TPC speci cations meet
or exceed all federal safety
guidelines.
(C) DOT (Department of
Transportation)
:The
Department of Transportation
(DOT) code indicates that the tire
is in compliance with the U.S.
Department of Transportation
Motor Vehicle Safety Standards.
(D) Tire Identi cation Number
(TIN)
:The letters and numbers
following DOT (Department
of Transportation) code is the
Tire Identi cation Number (TIN).The TIN shows the manufacturer
and plant code, tire size, and
date the tire was manufactured.
The TIN is molded onto both
sides of the tire, although only
one side may have the date of
manufacture.
(E) Tire Ply Material
:The type
of cord and number of plies in the
sidewall and under the tread.
(F) Uniform Tire Quality
Grading (UTQG)
:Tire
manufacturers are required to
grade tires based on three
performance factors: treadwear,
traction, and temperature
resistance. For more information
seeUniform Tire Quality
Grading on page 5-57.
(G) Maximum Cold In ation
Load Limit
:Maximum load that
can be carried and the maximum
pressure needed to support
that load. Passenger (P-Metric) Tire
Example
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(A) Temporary Use Only:The
compact spare tire or temporary
use tire has a tread life of
approximately 3,000 miles
(5 000 km) and should not be
driven at speeds over 65 mph
(105 km/h). The compact spare
tire is for emergency use when a
regular road tire has lost air and
gone at. If your vehicle has a
compact spare tire, seeCompact
Spare Tire on page 5-83andIf a
Tire Goes Flat on page 5-61.(B) Tire Ply Material
:The type
of cord and number of plies in the
sidewall and under the tread.
(C) Tire Identi cation Number
(TIN)
:The letters and numbers
following the DOT (Department
of Transportation) code is the
Tire Identi cation Number (TIN).
The TIN shows the manufacturer
and plant code, tire size, and
date the tire was manufactured.
The TIN is molded onto both
sides of the tire, although only
one side may have the date of
manufacture.
(D) Maximum Cold In ation
Load Limit
:Maximum load that
can be carried and the maximum
pressure needed to support
that load.(E) Tire In ation
:The
temporary use tire or compact
spare tire should be in ated to
60 psi (420 kPa). For more
information on tire pressure and
in ation seeInflation - Tire
Pressure on page 5-45.
(F) Tire Size
:A combination of
letters and numbers de ne a
tire’s width, height, aspect ratio,
construction type, and service
description. The letter T as the
rst character in the tire size
means the tire is for temporary
use only.
(G) TPC Spec (Tire
Performance Criteria
Speci cation)
:Original
equipment tires designed to
GM’s speci c tire performance
criteria have a TPC speci cation
code molded onto the sidewall.
GM’s TPC speci cations meet
or exceed all federal safety
guidelines. Compact Spare Tire Example
Service and Appearance Care 5-41
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When to Check
Check your tires once a month
or more. Do not forget to check
the compact spare tire, if the
vehicle has one. It should be at
60 psi (420 kPa). For additional
information regarding the
compact spare tire, seeCompact
Spare Tire on page 5-83.
How to Check
Use a good quality pocket-type
gage to check tire pressure.
You cannot tell if your tires are
properly in ated simply by
looking at them. Radial tires may
look properly in ated even when
they are under-in ated. Check
the tire’s in ation pressure when
the tires are cold. Cold means
your vehicle has been sitting for
at least three hours or driven no
more than 1 mile (1.6 km).Remove the valve cap from
the tire valve stem. Press the
tire gage rmly onto the valve
to get a pressure measurement.
If the cold tire in ation pressure
matches the recommended
pressure on the Tire and Loading
Information label, no further
adjustment is necessary. If the
in ation pressure is low, add air
until you reach the recommended
amount.
If you over ll the tire, release
air by pushing on the metal stem
in the center of the tire valve.
Re-check the tire pressure with
the tire gage.
Be sure to put the valve caps
back on the valve stems.
They help prevent leaks by
keeping out dirt and moisture.Tire Pressure Monitor
System
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor
the air pressure in your vehicle’s tires
and transmit tire pressure readings
to a receiver located in the vehicle.
Each tire, including the spare
(if provided), should be checked
monthly when cold and in ated to the
in ation pressure recommended by
the vehicle manufacturer on the
vehicle placard or tire in ation
pressure label. (If your vehicle has
tires of a different size than the size
indicated on the vehicle placard or
tire in ation pressure label, you
should determine the proper tire
in ation pressure for those tires.)
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Federal Communications
Commission (FCC) and
Industry and Science Canada
The Tire Pressure Monitor System
(TPMS) operates on a radio
frequency and complies with Part 15
of the FCC Rules. Operation is
subject to the following two
conditions:
1. This device may not cause
harmful interference.
2. This device must accept any
interference received, including
interference that may cause
undesired operation.Vehicles with TPMS operate on a
radio frequency and comply with
RSS-210 of Industry and Science
Canada. Operation is subject to the
following two conditions:
1. This device may not cause
interference.
2. This device must accept any
interference received, including
interference that may cause
undesired operation of the device.
Changes or modi cations to
this system by other than an
authorized service facility could
void authorization to use this
equipment.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly, if the vehicle
has one. The TPMS sensors monitor
the air pressure in the vehicle’s tires
and transmits the tire pressure
readings to a receiver located in the
vehicle.
5-48 Service and Appearance Care
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