2009 PONTIAC G5 brake light

P(Off/On):When operating in AUTO, a momentary
turn of the switch to Off/On will turn the Automatic
Headlamp System off or back on. For vehicles rst
sold in Canada, the automatic transmission must be
in P (Park) or the manual transmission must have
the park brake set, before the Automatic Headlamp
System can be turned off.
Wiper Activated Headlamps
The headlamps and parking lamps are activated
15 seconds after the windshield wipers are turned on.
For this feature to work, automatic lighting must be
enabled. SeeHeadlamps on page 3-12for additional
information.
When the ignition is turned off, the wiper-activated
headlamps will immediately turn off. They also turn
off 15 seconds after the windshield wiper control
is turned off.
Headlamps on Reminder
If the drivers door is opened with the ignition off and the
lamps on, a warning chime will sound. This indicates
that the headlamps are still on.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier
for others to see the front of your vehicle during the day.
DRL can be helpful in many different driving conditions,
but they can be especially helpful in the short periods
after dawn and before sunset. Fully functional daytime
running lamps are required on all vehicles rst sold in
Canada.
The vehicle has a light sensor on top of the instrument
panel. Make sure it is not covered or the headlamps
will come on when you do not need them.
The DRL system will make the headlamps come on at
reduced intensity when the following conditions are met:
The ignition is on.
The exterior lamp control is turned to AUTO.
The light sensor detects daytime light.
The shift lever is not in P (Park).
While the DRL system is on, the taillamps, sidemarker
lamps, and instrument panel lights will not be illuminated.
The DRL system will be off any time the vehicle is in
P (Park). The DRL system on U.S. vehicles can also be
turned off by using the off/on switch for one ignition cycle.
The regular headlamp system should be used when
needed.
3-13

Brake System Warning Light
The vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part
can still work and stop the vehicle. For good braking
both parts need to be working well.
If the warning light comes on, there is a brake problem.
Have the brake system inspected right away.
This light should come on briey when the engine is
started. If it does not come on then, have it xed so
it will be ready to warn if there is a problem.
When the ignition is on, the brake system warning
light also comes on when the parking brake is set.
The light stays on if the parking brake does not fully
release. If it stays on after the parking brake is fully
released, it means the vehicle has a brake problem.If the light comes on while driving, pull off the road
and stop carefully. Make sure the parking brake is fully
released. The pedal might be harder to push or, the pedal
could go closer to the oor. It can take longer to stop.
Try turning off and restarting the vehicle one or two times,
if the light is still on, have the vehicle towed for service.
SeeTowing Your Vehicle on page 4-28.
{CAUTION:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service. United States
Canada
3-29

Antilock Brake System (ABS)
Warning Light
For vehicles with
the Antilock Brake
System (ABS), this light
comes on briey when
the engine is started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.If the ABS light stays on, turn the ignition off. If the
light comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on, or
comes on again while driving, the vehicle needs service.
If the regular brake system warning light is not on, the
vehicle still has brakes, but not antilock brakes. If the
regular brake system warning light is also on, the vehicle
does not have antilock brakes and there is a problem with
the regular brakes. SeeBrake System Warning Light on
page 3-29.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-42for all
brake related DIC messages.
3-30

DIC Warnings and Messages
These messages appear if there is a problem detected
in one of your vehicle’s systems.
A message clears when the vehicle’s condition is
no longer present. To acknowledge a message and
clear it from the display, press and hold any of the
DIC buttons. If the condition is still present, the warning
message comes back on the next time the vehicle
is turned off and back on. With most messages,
a warning chime sounds when the message displays.
Your vehicle may have other warning messages.
AUTO (Automatic) LIGHTS OFF
This message displays if the automatic headlamp
system is disabled with the headlamp switch.
AUTO (Automatic) LIGHTS ON
This message displays if the automatic headlamp
system is enabled with the headlamp switch.
BRAKE FLUID
This message displays, while the ignition is on, when
the brake uid level is low. The brake system warning
light on the instrument panel cluster also comes on.
SeeBrake System Warning Light on page 3-29for
more information. Have the brake system serviced
by your dealer/retailer as soon as possible.
CHANGE OIL SOON
This message displays when the life of the engine oil
has expired and it should be changed.
When this message is acknowledged and cleared from
the display, the engine oil life system must still be reset
separately. SeeEngine Oil Life System on page 5-16
andScheduled Maintenance on page 6-4for more
information.
CHECK GAS CAP
This message displays if the fuel cap has not been fully
tightened. Recheck the fuel cap to make sure that it
is on properly. A few driving trips with the cap properly
installed should turn the message off.
CHECK TIRE PRESS (Pressure)
If your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS), this message displays when
the pressure in one or more of the vehicle’s tires needs to
be checked. If a tire pressure message appears on the
DIC, stop as soon as you can. Have the tire pressures
checked and set to those shown on the Tire Loading
Information label. SeeTires on page 5-48,Loading the
Vehicle on page 4-22, andInflation - Tire Pressure on
page 5-55. The DIC also shows the tire pressure values.
SeeDIC Operation and Displays on page 3-39. If the tire
pressure is low, the low tire pressure warning light comes
on. SeeTire Pressure Light on page 3-33.
3-42

LOW TRACTION
If your vehicle has the Enhanced Traction System (ETS)
or Traction Control System (TCS), this message displays
and the ETS light or the ESC/TCS light on the instrument
panel cluster ashes when the system is actively limiting
wheel spin. Slippery road conditions may exist if this
message is displayed, so adjust your driving accordingly.
This message stays on for a few seconds after the
system stops limiting wheel spin. SeeEnhanced Traction
System (ETS) on page 4-10orTraction Control System
(TCS) on page 4-7andEnhanced Traction System (ETS)
Indicator/Warning Light on page 3-31orElectronic
Stability Control (ESC)/Traction Control System (TCS)
Indicator/Warning Light on page 3-31for more
information.
PARKING BRAKE
This message displays if the parking brake is left
engaged. SeeParking Brake on page 2-30for more
information.
POWER STEERING
This message displays if a problem has been detected
with the electric power steering. Have your vehicle
serviced by your dealer/retailer immediately.
SERVICE AIR BAG
This message displays when there is a problem with
the airbag system. Have your vehicle serviced by your
dealer/retailer immediately.
SERVICE ESC (ELECTRONIC STABILITY
CONTROL)
If your vehicle has Electronic Stability Control (ESC),
this message displays and a chime sounds if there has
been a problem detected with ESC. The ESC/TCS light
also appears on the instrument panel cluster. This light
stays on solid as long as the detected problem remains
present. When this message displays, the system is not
working. Adjust your driving accordingly. SeeElectronic
Stability Control (ESC) on page 4-6andElectronic
Stability Control (ESC)/Traction Control System (TCS)
Indicator/Warning Light on page 3-31for more
information.
If this message turns 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 and
then back on. If this message still stays on or turns back
on again while you are driving, your vehicle needs
service. Have the ESC inspected by your dealer/retailer
as soon as possible.
3-45

Braking
SeeBrake System Warning Light on page 3-29.
Braking action involves perception time and reaction
time. Deciding to push the brake pedal is perception
time. Actually doing it is reaction time.
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 the 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 with a
lot of heavy braking. Keeping pace with the traffic andallowing realistic following distances eliminates a lot of
unnecessary braking. That means better braking and
longer brake life.
If the engine ever stops while the vehicle is being driven,
brake normally but do not pump the brakes. If the brakes
are pumped, the pedal could get harder to push down.
If the engine stops, there will still be some power brake
assist but it will be used when the brake is applied. Once
the power assist is used up, it can take longer to stop and
the brake pedal will be harder to push.
Adding non-dealer/non-retailer accessories can affect
vehicle performance. SeeAccessories and Modifications
on page 5-3.
Antilock Brake System (ABS)
The vehicle might have the Antilock Brake System
(ABS), an advanced electronic braking system that helps
prevent a braking skid.
If the vehicle has ABS,
this warning light on the
instrument panel comes on
briey when the vehicle is
started.
4-4

When the engine is started, or when the vehicle begins
to drive away, ABS checks itself. A momentary motor
or clicking noise might be heard while this test is going
on, and it might even be noticed 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 the 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 to each wheel, as
required, faster than any driver could. This can help the
driver steer around the obstacle while braking hard.
As the brakes are applied, the computer keeps receiving
updates on wheel speed and controls braking pressure
accordingly.
Remember: ABS does not change the time needed to get
a foot up to the brake pedal or always decrease stopping
distance. If you get too close to the vehicle in front of you,
there will not be enough time to apply the brakes if that
vehicle suddenly slows or stops. Always leave enough
room up ahead to stop, even with ABS.Using ABS
Do not pump the brakes. Just hold the brake pedal down
rmly and let antilock work. A slight brake pedal pulsation
might be felt or some noise noticed, but this is normal.
Braking in Emergencies
At some time, nearly every driver gets into a situation
that requires hard braking.
If the vehicle has ABS, it allows the driver to steer and
brake at the same time. However, if the vehicle does not
have ABS, the rst reaction — to hit the brake pedal hard
and hold it down — might be the wrong thing to do. The
wheels can stop rolling. Once they do, the vehicle cannot
respond to the driver’s steering. Momentum will carry
it in whatever direction it was headed when the wheels
stopped rolling. That could be off the road, into the very
thing the driver was trying to avoid, or into traffic.
If the vehicle does not have ABS, use a “squeeze”
braking technique. This gives maximum braking while
maintaining steering control. Do this by pushing on
the brake pedal with steadily increasing pressure.
In an emergency, you will probably want to squeeze the
brakes hard without locking the wheels. If you hear or feel
the wheels sliding, ease off the brake pedal. This helps
retain steering control. With ABS, it is different. See
Antilock Brake System (ABS) on page 4-4.
In many emergencies, steering can help more than
even the very best braking.
4-5

Electronic Stability Control (ESC)
The vehicle may have an Electronic Stability Control
(ESC) system which combines antilock brake, and
traction and stability control systems that help the driver
maintain directional control of the vehicle in most driving
conditions.
When the vehicle is started and begins to move, the
system performs several diagnostic checks to ensure
there are no problems. The system may be heard or felt
while it is working. This is normal and does not mean
there is a problem with the vehicle. The system should
initialize before the vehicle reaches 20 mph (32 km/h).
If the system fails to turn on or activate, the ESC/TCS
light comes on, and the ESC OFF and/or SERVICE ESC
message displays.
For more information, seeDriver Information Center
(DIC) on page 3-39andElectronic Stability Control
(ESC)/Traction Control System (TCS) Indicator/Warning
Light on page 3-31.
This light ashes on the
instrument panel cluster
when the ESC system is
on and activated.ESC activates when the computer senses a discrepancy
between the intended path and the direction the vehicle
is actually travelling. ESC selectively applies braking
pressure at any one of the vehicle’s brakes to help steer
the vehicle in the direction which you are steering.
When the system activates, an ESC ACTIVE message
displays on the Driver Information Center. SeeDIC
Warnings and Messages on page 3-42. This light also
ashes on the instrument panel cluster when the ESC
system is on and activated. A noise may be heard or a
vibration felt in the brake pedal. This is normal. Continue
to steer the vehicle in the intended direction.
When the light is on solid and the message(s), SERVICE
ESC, ESC OFF, or both display, the system will not assist
the driver in maintaining directional control of the vehicle.
Adjust your driving accordingly. SeeDIC Warnings and
Messages on page 3-42.
The ESC system is automatically enabled whenever
the vehicle is started. To assist the driver with vehicle
directional control, especially in slippery road conditions,
the system should always be left on. But, ESC can be
turned off if needed.
If cruise control is being used when ESC activates, the
cruise control automatically disengages. The cruise
control can be reengaged when road conditions allow.
SeeCruise Control on page 3-10.
4-6