Page 177 of 384

{CAUTION:
When the LOW TIRE PRESSURE or FLAT TIRE
message is displayed on the Driver Information
Center, your vehicle’s handling capabilities will
be reduced during severe maneuvers. If you
drive too fast, you could lose control of your
vehicle. You or others could be injured. Don’t
drive over 55 mph (90 km/h) when the LOW
TIRE PRESSURE or FLAT TIRE message is
displayed. Drive cautiously and check your tire
pressures as soon as you can.MAXIMUM SPEED 80 MPH (129 km/h):You will hear
four chimes when this message is displayed. To
acknowledge the warning, press RESET. After you
press RESET, a message will reappear every
10 minutes until this condition changes.
This message indicates that a malfunction is present in
the selective real time damping system. The vehicle
speed will be limited to 80 mph (129 km/h) when
the shock absorber system has failed and the shocks
are in their full soft mode. Have your vehicle serviced as
soon as possible.
PULL KEY – WAIT 10 SEC (Manual Transmission
Only):If this message comes on, the steering column
lock system has detected a problem while disengaging
the steering column lock. This message may occur when
the ignition key is removed and reinserted before the
steering column lock system fully locks or unlocks
the steering column. To acknowledge that you have read
this message, and to clear it from the display, remove
the ignition key and wait 10 seconds before reinserting
the key into the ignition. If you attempt to operate
your vehicle without removing the key for 10 seconds,
the vehicle’s fuel system will shut off when you
reach 1.5 mph (2.4 km/h). If the message stays on after
removing the key and waiting 10 seconds, have your
vehicle taken to an authorized dealer as soon as
possible for diagnosis and repair.
3-63
Page 178 of 384

REDUCED ENGINE POWER:You will hear chimes
continuously when this message is displayed. To
acknowledge that you have read the message and to
remove it from the display, press RESET. The message
will reappear every 15 seconds until this condition
changes.
If the Driver Information Center (DIC) displays the
REDUCED ENGINE POWER message and the CHECK
ENGINE light comes on, a noticeable reduction in the
vehicle’s performance may occur. If the REDUCED
ENGINE POWER message is displayed but there is no
reduction in performance, proceed to your destination.
The performance may be reduced the next time
the vehicle is driven.
The vehicle may be driven at a reduced speed while the
REDUCED ENGINE POWER message is displayed,
but acceleration and speed may be reduced. Anytime
the CHECK ENGINE light stays on, the vehicle
should be taken to an authorized dealer as soon as
possible for diagnosis and repair.
Also, refer toMalfunction Indicator Lamp on page 3-41.
If the REDUCED ENGINE POWER message is
displayed in combination with the COOLANT OVER
TEMP message, seeEngine Overheating on page 5-26.REDUCE ENGINE RPM:You will hear four chimes
when this message is displayed. To acknowledge
the warning, press the RESET button. After you press
the RESET button, a message will be displayed and you
will hear a chime every minute until this condition
changes. If you do not press RESET, the message will
remain on the digital display until the condition
changes.
If the engine oil temperature exceeds 320°F (160°C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your
engine is too hot, seeEngine Overheating on page 5-26.
Your vehicle may need service, so see your dealer.
You can monitor the oil temperature with the GAGES
button on the DIC.
SERVICE ABS (Anti-Lock Brake System):If the
SERVICE ABS message is displayed 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 message stays on, or comes back
on again while you are driving, your vehicle is in need
of service. If the regular brake system warning light
is not on, you still have brakes, but do not have anti-lock
brakes. If the regular brake system light is also on,
you do not have anti-lock brakes and there is a problem
with your brakes. SeeBrake System Warning Light
on page 3-38.
3-64
Page 179 of 384

If the SERVICE ABS message is being displayed, your
Traction Control System and the Active Handling
System will also be disabled. The Driver Information
Center will scroll three messages: SERVICE ABS,
SERVICE TRACTION SYS and SERVICE ACTIVE
HNDLG, and the instrument cluster car icon will
be illuminated. The driver can acknowledge these
messages by pressing the reset button three times.
When the service message is displayed the computer
controlled systems will not assist the driver and you
should have the system repaired as soon as possible.
Adjust your driving accordingly.
SERVICE ACTIVE HANDLING:If the SERVICE
ACTIVE HNDLG message is displayed, there is a
problem with your Active Handling System and your
vehicle needs service. The instrument cluster light
will also be on and a chime will sound. When this
message is displayed, the system is not working. Adjust
your driving accordingly.SERVICE COLUMN LOCK (Manual Transmission
Only):If the system that controls the locking and
unlocking of the steering column does not work properly,
have the vehicle towed to a dealer for service.
SERVICE RIDE CONTROL:This message is used to
indicate to the driver that the Selective Ride Control
system has detected a malfunction and that the system
must be serviced. The SERVICE RIDE CONTROL
message will always come on when a failure is detected
by the Selective Ride Control system. If a fault is
present in the Selective Ride Control system which
causes the shocks to be in their full soft condition, the
SERVICE RIDE CONTROL, SHOCKS INOPERATIVE
and MAXIMUM SPEED 80 MPH (129 km/h) will
display together. You will never get a SHOCKS
INOPERATIVE and MAXIMUM SPEED 80 MPH
(129 km/h) message without a SERVICE RIDE
CONTROL message.
3-65
Page 180 of 384

SERVICE TIRE MON SYS (Except Z06):If this
message comes on, a part on the Tire Pressure
Monitor (TPM) is not working properly. If you drive your
vehicle while any of the four sensors are missing or
inoperable, the warning will come on in about
10 minutes. If all four sensors are missing, the warning
will come on in about 15 to 20 minutes. All the
sensors would be missing, for example, if you put
different wheels on your vehicle without transferring the
sensors. If the warning comes on and stays on, there
may be a problem with the TPM. See your dealer.
SERVICE TRACTION SYSTEM:If the SERVICE
TRACTION SYS message is displayed when you are
driving, there is a problem with your Traction Control
System and your vehicle is in need of service. When this
message is displayed, the system will not limit wheel
spin. Adjust your driving accordingly.
The SERVICE ACTIVE HNDLG message will also be
displayed and the instrument cluster car icon will also be
illuminated. The driver can acknowledge both messages
by pressing the reset button two times which will alsoturn off the instrument cluster icon. When the service
messages are displayed, the computer controlled
systems will not assist the driver in controlling the
vehicle. Have the system repaired as soon as possible.
Adjust your driving accordingly.
SERVICE VEHICLE SOON:If this message appears
on the DIC, there may be an electrical or another system
problem with your vehicle. Have your vehicle checked
by your dealer if this message keeps appearing.
SHOCKS INOPERATIVE:You will hear four chimes
when this message is displayed. To acknowledge
that you have read the message and to remove it from
the display, press RESET. The message will reappear
every 10 minutes until this condition changes.
This message indicates that a malfunction is present in
the Selective Ride Control system which is causing
the shocks to be in their full soft mode. This is a warning
to the driver that the vehicle handling may be affected.
Have your vehicle serviced as soon as possible.
3-66
Page 181 of 384

TRAC/ACT HNDLG – OFF:By pressing the Active
Handling System console button briefly, the driver can
turn the Traction Control and Active Handling Systems
off. The message TRAC/ACT HNDLG – OFF will be
displayed in the DIC, the instrument panel cluster light
will be on and a chime will sound. You can acknowledge
this message by pressing the RESET button. The
anti-lock brake systems remains on with the Traction
Control and Active Handling Systems off. You should
adjust your driving accordingly.
TRAC/ACT HNDLG – ON:If the Traction Control and
Active Handling Systems are off, pressing the Active
Handling System console button momentarily will
turn both systems on. The message TRAC/ACT
HNDLG – ON will be displayed temporarily in the DIC,
the instrument panel cluster light will be off and a
chime will sound.TRACTION SYS ACTIVE:When your Traction Control
System is limiting wheel spin, the TRACTION SYS
ACTIVE message will be displayed. Slippery road
conditions may exist if this message is displayed, so
adjust your driving accordingly. The message will
stay on for a few seconds after the Traction Control
System stops limiting wheel spin.
TRACTION SYSTEM – OFF:You will hear a single
quick tone when this message is displayed. This
message comes on and stays on when the Traction
Control System button on the console is pressed to turn
the system off. To acknowledge this message, press
RESET.
TRACTION SYSTEM – ON:This message is displayed
when you decide to turn on the Traction Control
System by pressing the switch on the console. This
message will shut off automatically on its own.
WARM UP COMPLETE:If you receive this message
and hear a chime, the system has completed the
functional check of the Active Handling System.
3-67
Page 182 of 384

Other Messages
Here are more messages that you can receive on your
Driver Information Center (DIC). To acknowledge a
message and read another message that may have
come on at the same time, press the RESET button.
•BRAKE BEFORE SHIFT
(See “Automatic Transmissions Only” under
Automatic Transmission Operation on page 2-25.)
•CHANGE OIL NOW
(See “GM Oil Life System™” underEngine Oil on
page 5-13.)
•CHANGE OIL SOON
(See “GM Oil Life System™” underEngine Oil on
page 5-13andScheduled Maintenance on
page 6-4.)
•CRUISE DISENGAGED
(See “Cruise Control” underTurn
Signal/Multifunction Lever on page 3-6.)
•CRUISE SET_MPH (_km/h)
(See “Cruise Control” underTurn
Signal/Multifunction Lever on page 3-6.)
•DOOR AJAR
•ENGINE PROTECTION REDUCE ENGINE RPM
•HATCH AJAR (Coupe)
•HIGH VOLTAGE
(SeeVoltmeter Gage on page 3-37.)
•LOW BRAKE FLUID
(See “Brake Fluid” underBrakes on page 5-37.)
•LOW FUEL
(SeeFuel Gage on page 3-46.)
•LOW VOLTAGE
(SeeVoltmeter Gage on page 3-37.)
•LOW WASHER FLUID
(SeeWindshield Washer Fluid on page 5-36.)
•RESERVE FUEL
(SeeFuel Gage on page 3-46.)
•TONNEAU AJAR (Convertible)
•TRUNK AJAR (Convertible/Z06)
•UPSHIFT NOW
(SeeManual Transmission Operation on
page 2-28.)
3-68
Page 183 of 384

Audio System(s)
Notice:Before adding any sound equipment to
your vehicle, like a tape player, CB radio, mobile
telephone, or two-way radio, make sure that it can
be added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be added,
it is very important to do it properly. Added
sound equipment may interfere with the operation
of your vehicle’s engine, radio, or other systems,
and even damage them. Your vehicle’s systems may
interfere with the operation of sound equipment
that has been added improperly.Figure out which audio system is in your vehicle, find
out what your audio system can do, and how to operate
all of its controls.
Your vehicle may have a feature called Retained
Accessory Power (RAP). With RAP, the audio system
can be played even after the ignition is turned off.
See “Retained Accessory Power (RAP)” underIgnition
Positions on page 2-20.
Setting the Time
Press and hold HR until the correct hour appears on the
display. Press and hold MN until the correct minute
appears on the display.
3-69
Page 184 of 384
Radio with Cassette
Your vehicle is equipped with six Bose®amplified
speakers. See your dealer for details.
Playing the Radio
PWR (Power):Press this knob to turn the system on
and off.
VOL (Volume):Turn this knob to increase or to
decrease the volume.
RECALL:Press this button to switch the display
between the radio station frequency and the time. When
the ignition is off, press this knob to display the time.
SCV (Speed-Compensated Volume):With SCV,
the audio system adjusts automatically to make up for
road and wind noise as you drive.
Set the volume at the desired level. Turn the control
ring behind the power knob clockwise to increase
the SCV. Each notch on the control ring allows for more
volume compensation at faster vehicle speeds. Then,
as you drive, SCV automatically increases the volume,
as necessary, to overcome noise at any speed. The
volume level should always sound the same to you as
you drive.To turn SCV off, turn the control ring all
the way down.
3-70