Service AC (Air Conditioning) System
This message appears when the electronic sensors that
control the air conditioning and heating systems are
no longer working. Have the climate control system
serviced by your GM dealer if you notice a drop
in heating and air conditioning efficiency.
Service Air Bag
There is a problem with the air bag system when this
message appears. Have your vehicle serviced at
your GM dealer immediately. SeeAirbag Readiness
Light on page 3-37for more information.
Service Charging System
This message will display when a problem with the
charging system has been detected. Have your vehicle
serviced at your GM dealer.
Service Electrical System
This message will display if an electrical problem has
occurred within the Powertrain Control Module (PCM) or
the ignition switch. Have your vehicle serviced at your
GM dealer.
Service Fuel System
The Powertrain Control Module (PCM) has detected a
problem within the fuel system when this message
appears. Have your vehicle serviced at your GM dealer.
Service Idle Control
A problem with the idle control has occurred when this
message displays. Have your vehicle serviced at
your GM dealer.
Service Stability System Message
Your vehicle is equipped with a vehicle stability
enhancement system called StabiliTrak®.
SeeStabiliTrak
®System on page 4-11. The Service
Stability System message will be displayed if there has
been a problem detected with StabiliTrak
®.
If the Service Stability System message comes on while
you are driving, pull off the road as soon as possible
and stop carefully. Try resetting the system by turning
the ignition off then back on. If the Service Stability
System message still stays on or comes back on again
while you are driving, your vehicle needs service.
Have the StabiliTrak
®System inspected at your
GM dealer as soon as possible.
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You should turn the system off if your vehicle ever gets
stuck in sand, mud or snow and rocking the vehicle
is required. SeeRocking Your Vehicle to Get It Out on
page 4-44andIf Your Vehicle is Stuck in Sand,
Mud, Ice or Snow on page 4-43for more information.
See alsoWinter Driving on page 4-39for information on
using TCS when driving in snowy or icy conditions.
To turn the system off,
press the TC (traction
control) button located
near the shift lever.
If you press the TC button once, the traction control
system will turn off and the traction control system
warning light will come on. Press the TC button again to
turn the system back on. If you press and hold the
TC button for ve seconds, the StabiliTrak
®system and
the traction control system will turn off. Press the
TC button again to turn StabiliTrak
®back on. For more
information, seeStabiliTrak®System on page 4-11.
Magnetic Ride Control
Your vehicle may have Magnetic Ride Control that
automatically adjusts the ride of your vehicle. Automatic
ride control is achieved through a computer used to
control and monitor the suspension system. The
controller receives input from various sensors to
determine the proper system response. If the controller
detects a problem within the system, the DIC will
display a Service Suspension System message. See
DIC Warnings and Messages on page 3-57for
more information. See your dealer for service.
Limited-Slip Rear Axle
Your vehicle may have this feature. A limited-slip rear
axle can give you additional traction on snow, mud, ice,
sand or gravel. It works like a standard axle most of
the time, but when one of the rear wheels has no
traction and the other does, this feature will allow the
wheel with traction to move the vehicle.
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Tire Pressure Monitor System
Your vehicle may have this feature. The Tire Pressure
Monitor (TPM) system uses radio and sensor technology
to check tire pressure levels. If your vehicle has this
feature, sensors are mounted on each tire and wheel
assembly, except for the compact spare tire and wheel.
Tire pressure readings are sent to a receiver located
in the vehicle once every 60 seconds while the vehicle is
being driven, and once every 60 minutes if the vehicle
is stationary for more than 15 minutes.
Using the Driver Information Center (DIC), tire pressure
levels can be viewed by the driver. For additional
information and details about the DIC operation and
displays seeSystem Controls on page 3-48and
DIC Warnings and Messages on page 3-57. When a
low tire pressure condition is detected, the TPM system
will display the CHECK TIRE PRESSURE warning
message on the Driver Information Center (DIC) and, at
the same time, illuminate the low tire pressure warning
symbol, on the instrument panel cluster.
When the tire pressure
monitoring system warning
light is lit, one or more
of your tires is signi cantly
under-in ated.You should stop and check your tires as soon as
possible, and in ate them to the proper pressure as
indicated on the vehicle’s tire information placard.
Driving on a signi cantly under-in ated tire causes the
tire to overheat and can lead to tire failure.
Under-in ation also reduces fuel efficiency and tire tread
life, and may affect the vehicle’s handling and stopping
ability. Each tire, including the spare, should be
checked monthly when cold and set to the
recommended in ation pressure as speci ed in the
vehicle placard and owner’s manual.
The Tire and Loading Information Label (your vehicle’s
tire information placard) shows the size of your
vehicle’s original tires and their recommended cold
in ation pressures. SeeLoading Your Vehicle on
page 4-45, for the location of the tire and loading
information label. Also seeIn ation - Tire Pressure on
page 5-58.
Your vehicle’s TPM system can alert you about a low
tire pressure condition but it does not replace normal tire
maintenance. SeeTire Inspection and Rotation on
page 5-63andTires on page 5-51.
Notice:Do not use a tire sealant if your vehicle is
equipped with Tire Pressure Monitors. The liquid
sealant can damage the tire pressure monitor
sensors.
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