Service Steering System
Your vehicle may be equipped with a speed variable
assist steering system. SeeSteering on page 4-12.
The Service Steering System message will be displayed
if a problem is detected with the speed variable assist
steering system. When this message is displayed,
you may notice that the effort required to steer
the vehicle increases or feels “heavier,” but you will still
be able to steer the vehicle.
Service Suspension System
This message is displayed to indicate that the
suspension system is not operating properly. Have your
vehicle serviced at your GM dealer.
Service Theft System
This message means there is a problem with the
immobilizer. SeeImmobilizer on page 2-18for more
information. A fault has been detected in the system
which means that the system is disabled and is
not protecting the vehicle. The vehicle usually restarts,
however, you may want to take your vehicle to your
GM dealer before turning off the engine.
Service Tire Monitor System
This message will appear if the Tire Pressure Monitor
(TPM) system is not working properly. Have your vehicle
serviced at your GM dealer as soon as possible. See
Tire Pressure Monitor System on page 5-61for
more information.
Service Transmission
There is a problem with the transmission of your
vehicle. Have your vehicle serviced at your GM dealer.
Service Vehicle Soon
This message is displayed when a non-emissions
related powertrain malfunction occurs. Have your vehicle
serviced at your GM dealer as soon as possible.
Speed Limited to XXX
This message indicates that your vehicle speed is
limited to XXX (mph in English mode and km/h in Metric
mode) because the vehicle detects a problem in the
suspension system. Have your vehicle serviced at your
GM dealer.
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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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