2008 CHEVROLET HHR stop start

Engine Coolant Temperature Gage
Your vehicle has an
engine coolant temperature
gage. With the ignition
turned to RUN, this gage
shows the engine
coolant temperature.
If the gage pointer moves into the red area, your engine
is too hot. It means that your engine coolant has
overheated.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop your
vehicle and turn off the engine as soon as possible.
SeeEngine Overheating on page 5-26.
Tire Pressure Light
Your vehicle may have a
tire pressure light.
This light comes on briey when the engine is started
and provides information about tire pressures and
the Tire Pressure Monitoring System.
When the Light is Solid
This indicates that one or more of your tires are
signicantly underinated.
A tire pressure message in the Driver Information
Center (DIC), may accompany the light. SeeDIC
Warnings and Messages on page 3-48for more
information. Stop and check your tires as soon as it is
safe to do so. If underinated, inate to the proper
pressure. SeeTires on page 5-52for more information.
3-39

Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This could
also result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 5-3.
This light comes on, as a check to show it is working,
when the ignition is turned ON/RUN but the engine is not
running. If the light does not come on, have it repaired.
This light also comes on during a malfunction in
one of two ways:
Light Flashing— A misre condition has been
detected. A misre increases vehicle emissions
and could damage the emission control system on
your vehicle. Diagnosis and service might be
required.
Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service might be required.
If the Light is Flashing
The following can prevent more serious damage to your
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.
If the light stops ashing and remains on steady, see “If
the Light Is On Steady” following.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the ignition off, wait at least 10 seconds, and restart
the engine. If the light remains on steady, see “If the
Light Is On Steady” following. If the light is still ashing,
follow the previous steps and see your dealer/retailer
for service as soon as possible.
3-41

COOLING MODE ON
This message may display on some vehicles. Under
severe conditions, hot ambient temperatures, steep
grades, and towing, your vehicle may experience more
transmission shifting. This is temporary and normal
under these conditions. This does not require engine or
transmission service.
CRUISE ENGAGED
This message displays when the cruise control system
is active. SeeCruise Control on page 3-12for more
information.
DOOR AJAR
This message displays if one or more of the vehicle’s
doors are not closed properly. Make sure that the
door(s) are closed completely.
ENGINE DISABLED
This message displays if the starting of the engine is
disabled. Have your vehicle serviced by your
dealer/retailer immediately.
ENG (Engine) PWR (Power) REDUCED
This message displays to inform you that the vehicle
has reduced engine power to avoid damaging the
engine. Reduced engine power can affect the vehicle’s
ability to accelerate. If this message is on, 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 this message is on, but
acceleration and speed may be reduced. Anytime this
message stays on, the vehicle should be taken to
your dealer/retailer for service as soon as possible.
ESC (Electronic Stability Control) ACTIVE
If your vehicle has Electronic Stability Control (ESC),
this message displays and the ESC/TCS light on
the instrument panel cluster ashes when ESC is
assisting you with directional control of the vehicle. You
may feel or hear the system working and see this
message displayed in the DIC. Slippery road conditions
may exist when this message is displayed, so adjust
your driving accordingly. This message may stay on for
a few seconds after ESC stops assisting you with
directional control of the vehicle. This is normal when
the system is operating. SeeElectronic Stability Control
(ESC) on page 4-10andElectronic Stability Control
(ESC)/Traction Control System (TCS) Indicator/Warning
Light on page 3-37for more information.
3-50

ESC (Electronic Stability Control) NOT
READY
If your vehicle has Electronic Stability Control (ESC),
this message may display briey after starting the
vehicle if the system’s sensors are not yet calibrated.
The system is not functional until the message
stops displaying. Adjust your driving accordingly. When
the message is no longer displayed, the system is
functional. SeeElectronic Stability Control (ESC) on
page 4-10for more information.
ESC (Electronic Stability Control) OFF
If your vehicle has Electronic Stability Control (ESC),
this message displays and the ESC/TCS light on
the instrument panel cluster comes on solid when ESC
is turned off. Adjust your driving accordingly. See
Electronic Stability Control (ESC) on page 4-10and
Electronic Stability Control (ESC)/Traction Control
System (TCS) Indicator/Warning Light on page 3-37for
more information.
GATE AJAR
This message displays when the liftgate is not closed
completely. Make sure that the liftgate is closed
completely. SeeLiftgate on page 2-12for more
information.
ICE POSSIBLE
This message displays when the outside air temperature
is cold enough to create icy road conditions. Adjust
your driving accordingly.
KEY FOB BATT (Battery) LOW
This message displays if the Remote Keyless Entry
(RKE) transmitter battery is low. Replace the battery in
the transmitter. See “Battery Replacement” under
Remote Keyless Entry (RKE) System Operation on
page 2-5.
LAUNCH CONTROL
If your vehicle has this feature, this message displays
after the COMPETITIVE MODE message when the
vehicle is stopped. Launch control is a form of traction
control to control wheel spin while launching the
vehicle during closed track events and competitive
driving venues. The system will exit to COMPETITIVE
MODE after the vehicle is launched. See
“COMPETITIVE MODE” earlier in this section. See
“Launch Control” underElectronic Stability Control
(ESC) on page 4-10for more information.
LOW FUEL
This message displays when your vehicle is low on fuel.
Rell the fuel tank as soon as possible. SeeFuel
Gage on page 3-44,Fuel on page 5-5, andFilling the
Tank on page 5-7for more information.
3-51

If the ignition or radio is turned off, with a CD in the
player, it stays in the player. When the ignition or radio
is turned on, the CD starts playing where it stopped,
if it was the last selected audio source.
When a CD is inserted, the CD symbol displays on the
CD. As each new track starts to play, the track
number displays.
The CD player can play the smaller 3 inch (8 cm) single
CDs with an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
Care of Your CDs
If playing a CD-R, the sound quality can be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. Handle them carefully.
Store CD-R(s) in their original cases or other protective
cases and away from direct sunlight and dust. The
CD player scans the bottom surface of the disc. If the
surface of a CD is damaged, such as cracked, broken,
or scratched, the CD does not play properly or not
at all. Do not touch the bottom side of a CD while
handling it; this could damage the surface. Pick up CDs
by grasping the outer edges or the edge of the hole
and the outer edge.If the surface of a CD is soiled, take a soft, lint free cloth
or dampen a clean, soft cloth in a mild, neutral detergent
solution mixed with water, and clean it. Make sure the
wiping process starts from the center to the edge.
If there is no apparent damage, try a known good CD.
Care of Your CD Player
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a marking pen instead.
The use of CD lens cleaners for CDs is not advised,
due to the risk of contaminating the lens of the CD optics
with lubricants internal to the CD player mechanism.
Notice:If a label is added to a CD, or more than one
CD is inserted into the slot at a time, or an attempt
is made to play scratched or damaged CDs, the
CD player could be damaged. While using the CD
player, use only CDs in good condition without any
label, load one CD at a time, and keep the CD
player and the loading slot free of foreign materials,
liquids, and debris.
If an error displays, see “CD Messages” later in this
section.
3-69

File System and Naming
The song name that displays is the song name that is
contained in the ID3 tag. If the song name is not present
in the ID3 tag, then the radio displays the le name
without the extension (such as .mp3) as the track name.
Track names longer than 32 characters or four pages
are shortened. Parts of words on the last page of
text and the extension of the lename does not display.
Preprogrammed Playlists
Preprogrammed playlists that were created using
WinAmp™, MusicMatch™, or Real Jukebox™ software,
can be accessed, however, they cannot be edited
using the radio. These playlists are treated as special
folders containing compressed audio song les.
Playing an MP3
Insert a CD-R or CD-RW partway into the slot (Single
CD Player), or press the load button and wait for
the message to insert disc (Six-Disc CD Player), label
side up. The player pulls it in, and the CD-R or CD-RW
should begin playing.
If the ignition or radio is turned off with a CD-R or
CD-RW in the player, it stays in the player. When the
ignition or radio is turned on, the CD-R starts to
play where it stopped, if it was the last selected audio
source.As each new track starts to play, the track number and
song title displays.
ZEJECT: Press this button to eject CD-R(s) or
CD-RW(s). To eject the CD-R or CD-RW that is currently
playing, press and release this button. A beep sounds
and Ejecting Disc displays. Once the disc is ejected,
Remove Disc displays. The CD-R or CD-RW can
be removed. If the CD-R or CD-RW is not removed,
after several seconds, the CD-R or CD-RW
automatically pulls back into the player and begins
playing. For the Six-Disc CD player, press and hold this
button for two seconds to eject all discs.
f(Tune): Turn this knob to select MP3 les on the
CD-R or CD-RW currently playing.
©SEEK¨: Press the left SEEK arrow to go to the
start of the current MP3 le, if more than ten seconds
have played. Press the right SEEK arrow to go to
the next MP3 le. If either SEEK arrow is held or
pressed multiple times, the player continues moving
backward or forward through MP3 les on the CD.
Sc(Previous Folder): Press the pushbutton
positioned under the Folder label to go to the rst track
in the previous folder.
3-75

Average reaction time is about three-fourths of a
second. But that is only an average. It might be less
with one driver and as long as two or three seconds or
more with another. Age, physical condition, alertness,
coordination, and eyesight all play a part. So do alcohol,
drugs, and frustration. But even in three-fourths of a
second, a vehicle moving at 60 mph (100 km/h) travels
66 feet (20 m). That could be a lot of distance in an
emergency, so keeping enough space between
your vehicle and others is important.
And, of course, actual stopping distances vary greatly
with the surface of the road, whether it is pavement
or gravel; the condition of the road, whether it is
wet, dry, or icy; tire tread; the condition of the brakes;
the weight of the vehicle; and the amount of brake
force applied.
Avoid needless heavy braking. Some people drive in
spurts — heavy acceleration followed by heavy
braking — rather than keeping pace with traffic. This is
a mistake. The brakes might not have time to cool
between hard stops. The brakes will wear out much
faster if you do a lot of heavy braking. If you keep pace
with the traffic and allow realistic following distances,
you will eliminate a lot of unnecessary braking.
That means better braking and longer brake life.If your vehicle’s engine ever stops while you are driving,
brake normally but do not pump the brakes. If you do,
the pedal could get harder to push down. If the
engine stops, you will still have some power brake
assist. But you will use it when you brake. Once the
power assist is used up, it can take longer to stop and
the brake pedal will be harder to push.
If your vehicle has Electronic Stability Control (ESC)
and the 2.0L turbocharged engine, it also has a
hydraulic brake boost feature which supplements the
power brake system to maintain consistent brake
performance under conditions of low brake booster
vacuum. Low brake booster vacuum conditions
can include initial start up after the vehicle has been
parked for several hours, very frequent brake stops, or
high altitude driving. When hydraulic brake boost is
active, you might feel minor brake pulsation or
movement but this is normal. If brake pedal feel changes
or the brake pedal feels hard to push, you might not
be receiving the intended brake boost and the SVC
BRAKE SYSTEM DIC message may be displayed.
Adding non-dealer/non-retailer accessories can affect
your vehicle’s performance. SeeAccessories and
Modifications on page 5-3.
4-4

Antilock Brake System (ABS)
Your vehicle might have the Antilock Brake System
(ABS), an advanced electronic braking system that will
help prevent a braking skid.
If your vehicle has ABS,
this warning light on the
instrument panel will come
on briey when you
start your vehicle.
When you start the engine, or when you begin to drive
away, ABS will check itself. You might hear a
momentary motor or clicking noise while this test is
going on, and you might even notice that the brake
pedal moves or pulses a little. This is normal.
Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that wheels are slowing down. If
one of the wheels is about to stop rolling, the computer
will separately work the brakes at each wheel.ABS can change the brake pressure faster than any
driver could. The computer is programmed to make the
most of available tire and road conditions. This can
help you steer around the obstacle while braking hard.
As you brake, the computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.
Remember: ABS does not change the time you need to
get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle
in front of you, you will not have time to apply the brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake pedal
down rmly and let antilock work for you. You might feel
a slight brake pedal pulsation or notice some noise,
but this is normal.
4-5