When the ignition is on, the brake system warning light
will also come on when you set your parking brake.
The light will stay on if your parking brake doesn’t
release fully. If it stays on after your parking brake is
fully released, it means you have a brake problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push, or the pedal may go closer to the
oor. It may take longer to stop. If the light is still on,
have the vehicle towed for service. SeeTowing
Your Vehicle on page 4-50.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed for
service.
Anti-Lock Brake System
Warning Light
With the anti-lock brake
system, the light will come
on when your engine is
started and may stay on for
several seconds. That is
normal.
If the ABS warning light comes on and stays on, there
may be a problem with the anti-lock portion of the brake
system. If the red BRAKE light is not on, you still
have brakes, but you do not have anti-lock brakes.
SeeBrake System Warning Light on page 3-38.
If the light stays on, turn the ignition to OFF. If the light
comes on when you are driving, stop as soon as
possible and turn the ignition off. Then start the engine
again to reset the system. If the light still stays on,
or comes on again while you are driving, your vehicle
needs service. If the regular brake system warning light
is not on, you still have brakes, but you do not have
anti-lock brakes. If the regular brake system warning
light is also on, you do not have anti-lock brakes
and there is a problem with your regular brakes.
SeeBrake System Warning Light on page 3-38.
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Traction Control System (TCS)
Warning Light
If the TC (traction control)
warning light comes on
and stays on, there may be
a problem with the
traction control system.
The TC (traction control) warning light will come on
brie y when you turn the ignition to ON. If it doesn’t
come on then, have it xed so it will be ready to warn
you if there is a problem.
The light will also come on if you turn the traction
control system off using the TC (traction control) on/off
button located near the shift lever.
If the TC (traction control) warning light stays on or
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
light still stays on or comes back on again while you are
driving, your vehicle needs service. Have the traction
control system inspected as soon as possible. See
Traction Control System (TCS) on page 4-9for more
information.
Engine Coolant Temperature
Warning Light
This light tells you that
your engine is very hot.
This light will come on when you rst start the vehicle
as a check to let you know that the light is working. It will
go out after a few seconds. If the light does not come
on, the bulb may be burned out. See your GM dealer to
have it corrected.
If the light does not go out or if the light comes on and
stays on while you are driving, your vehicle may
have a problem with the cooling system. You should
stop the vehicle and turn off the engine as soon
as possible to avoid damage to the engine. A warning
chime will sound when this light is on, also.
SeeEngine Overheating on page 5-26.
3-40
AVG MPH:If you select this item, the average speed of
the vehicle is displayed in miles per hour (mph) or
kilometers per hour (km/h). This average is calculated
based on the various vehicle speeds recorded since the
last reset of this menu item.
To reset AVG MPH, press the CLR button located to
the right of the screen. The display will return to zero.
TIMER:If you select this item, a timing feature is
displayed. The timer functions like a stopwatch in that
you can record the time it takes to travel from one point
to another.
To turn on the timer, press the CLR button located to
the right of the screen once. To turn off the timer, press
the CLR button again.
When the timer is off, the display will show the timer
value and TIMER OFF. The timing feature will stop.
To reset the timer, turn off the timer and then press and
hold the CLR button. The display will return to zero.
BATTERY VOLTS:If you select this item, the current
battery voltage is displayed. If the voltage is in the normal
range, the display will have OK after it. For example, the
display may read 13.2 Battery Volts OK.If there is a problem with the battery charging system,
there are four possible DIC messages that may be
displayed. SeeDIC Warnings and Messages on
page 3-57for more information.
ENGINE OIL LIFE:If you select this item, the
percentage of remaining oil life is displayed. If you see
99% Oil Life on the display, that means that 99% of
the current oil life remains.
When the oil life is depleted, the Change Engine Oil
message will appear on the display. See your GM dealer
for service. In addition to the engine oil life system
monitoring the oil life, additional maintenance is
recommended in the Maintenance Schedule in this
manual. SeeScheduled Maintenance on page 6-4and
Engine Oil on page 5-16for more information.
When you reset the Change Engine Oil message by
clearing it from the display, you still must reset the
engine oil life system separately. For more information
on resetting the engine oil life system, see “How to
Reset the Engine Oil Life System and the Oil Life
Indicator” underEngine Oil Life System on page 5-19.
3-51
Battery Voltage Low
This message will appear when the electrical system is
charging less than 10 volts or if the battery has been
drained.
If this message appears immediately after starting the
engine, it is possible that the generator can still recharge
the battery. The battery should recharge while driving
but may take a few hours to do so. Consider using
an auxiliary charger (be sure to follow the
manufacturer’s instructions) to boost the battery after
returning home or to a nal destination.
If this message appears while driving or after starting
your vehicle and stays on, have it checked by your
GM dealer immediately to determine the cause of this
problem.
To help the generator recharge the battery quickly, you
can reduce the load on the electrical system by
turning off the accessories.
The normal battery voltage range is 11.5 to 15.5 volts.
You can monitor battery voltage on the DIC by pressing
the INFO button until you nd BATTERY VOLTS.
Change Engine Oil
When this message comes on, it means that service is
required for your vehicle. See your GM dealer. See
Engine Oil on page 5-16andScheduled Maintenance
on page 6-4for more information.
When you reset the Change Engine Oil message by
clearing it from the display, you still must reset the
engine oil life system separately. For more information
on resetting the engine oil life system, seeEngine
Oil Life System on page 5-19.
Change Trans (Transmission) Fluid
This message indicates that the life of the transmission
uid has expired and it should be changed within
200 miles (320 km). SeeScheduled Maintenance on
page 6-4andRecommended Fluids and Lubricants on
page 6-11for the proper uid and change intervals.
When you reset the Change Trans Fluid message by
clearing it from the display, you still must reset the
transmission uid life monitor separately. For more
information on resetting the transmission uid life
monitor, seeAutomatic Transmission Fluid on
page 5-22.
3-58
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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