2010 PONTIAC G5 service

When the Light Flashes First and Then is
On Steady
This indicates that there may be a problem with the Tire
Pressure Monitor System. The light flashes for about
a minute and stays on steady for the remainder of
the ignition cycle. This sequence repeats with every
ignition cycle. SeeTire Pressure Monitor Operation
on page 6-58 for more information.
Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation
of the fuel, ignition, and emission control systems.
It ensures that emissions are at acceptable levels
for the life of the vehicle, helping to produce a cleaner
environment.
This light should come on
when the ignition is on, but
the engine is not running,
as a check to show it
is working. If it does not,
have the vehicle serviced
by your dealer/retailer. If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle.
This system assists the service technician in correctly
diagnosing any malfunction.
Notice:
If the vehicle is continually driven with
this light on, after a while, the emission controls
might not work as well, the vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by the vehicle warranty.
Notice: Modications made to the engine,
transmission, exhaust, intake, or fuel system
of the vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to
costly repairs not covered by the vehicle warranty.
This could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 6-3 .
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This light comes on during a malfunction in one of
two ways:
Light Flashing:A misfire condition has been detected.
A misfire increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
To prevent more serious damage to the vehicle:
•Reduce vehicle speed.
•Avoid hard accelerations.
•Avoid steep uphill grades.
•If towing a trailer, reduce the amount of cargo being
hauled as soon as it is possible.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still flashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
Light On Steady: An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required. An emission system malfunction might be corrected by
doing the following:
•Make sure the fuel cap is fully installed. See
Filling
the Tank on page 6-8. The diagnostic system
can determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere. A few
driving trips with the cap properly installed should
turn the light off.
•If the vehicle has been driven through a deep puddle
of water, the vehicle’s electrical system might be wet.
The condition is usually corrected when the electrical
system dries out. A few driving trips should turn the
light off.
•Make sure to fuel the vehicle with quality fuel. Poor
fuel quality causes the engine not to run as efficiently
as designed and can cause: stalling after start-up,
stalling when the vehicle is changed into gear,
misfiring, hesitation on acceleration, or stumbling on
acceleration. These conditions might go away once
the engine is warmed up.
If one or more of these conditions occurs, change the
fuel brand used. It will require at least one full tank of
the proper fuel to turn the light off.
See Gasoline Octane on page 6-6 .
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Oil Pressure Light
{WARNING:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice: Lack of proper engine oil maintenance
can damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow
the maintenance schedule in this manual for
changing engine oil. This light comes on briefly while starting the engine.
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 light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and it might have some other system
problem.
Security Light
For information regarding
this light and the vehicle’s
security system, see
Content Theft-Deterrent
on page 3-15.
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Here are four things that some owners ask about.
None of these show a problem with the fuel gage:
•At the service station, the gas pump shuts off before
the gage reads full.
•It takes a little more or less fuel to fill up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank’s capacity to
fill the tank.
•The gage moves a little while turning a corner or
speeding up.
•The gage does not go back to empty when the
ignition is turned off.
For the fuel tank capacity, see Capacities and
Specications on page 6-109 .
Driver Information Center (DIC)
Your vehicle has a Driver Information Center (DIC).
The DIC display gives you the status of many of your
vehicle’s systems. The DIC is also used to display
driver personalization menu modes and warning/status
messages. All messages will appear in the DIC display,
located at the bottom of the instrument panel cluster.
The DIC buttons are
located on the left side
of the steering wheel.
INFO (Information): Press this button to scroll through
the vehicle information mode displays.
r(Reset): Press this button to reset some vehicle
information mode displays, select a personalization menu
mode setting, or acknowledge a warning message.
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If a low tire pressure condition is detected by the system
while driving, a message advising you to check the tire
pressure appears in the display. SeeInation - Tire
Pressure on page 6-55 andDIC Warnings and Messages
on page 4-38 for more information.
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 fluid level is low. The brake system warning
light on the instrument panel cluster also comes on.
SeeBrake System Warning Light on page 4-26 for 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. See Engine Oil Life System on page 6-16
and Scheduled Maintenance on page 7-3 for 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.
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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 4-7 for more
information.
DOOR AJAR
This message displays if one or more of the vehicle’s
doors are open. 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 flashes 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. See Electronic Stability Control (ESC) on
page 5-6 andElectronic Stability Control (ESC)/Traction
Control System (TCS) Indicator/Warning Light on
page 4-28 for more information.
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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 flashes 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 5-11 orTraction Control System
(TCS) on page 5-8 andEnhanced Traction System (ETS)
Indicator/Warning Light on page 4-27 orElectronic
Stability Control (ESC)/Traction Control System (TCS)
Indicator/Warning Light on page 4-28 for more
information.
PARKING BRAKE
This message displays if the parking brake is left
engaged. See Parking Brake on page 3-29 for 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. See Electronic
Stability Control (ESC) on page 5-6 andElectronic
Stability Control (ESC)/Traction Control System (TCS)
Indicator/Warning Light on page 4-28 for 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.
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SERVICE TRACTION
If your vehicle has the Enhanced Traction System (ETS)
or Traction Control System (TCS), this message displays
and a chime sounds when the system is not functioning
properly. The ETS light or 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. SeeEnhanced
Traction System (ETS) on page 5-11 orTraction Control
System (TCS) on page 5-8 andEnhanced Traction
System (ETS) Indicator/Warning Light on page 4-27
or Electronic Stability Control (ESC)/Traction Control
System (TCS) Indicator/Warning Light on page 4-28
for more information. Have the system serviced by
your dealer/retailer as soon as possible.
SVC (Service) TIRE MONITOR
If your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS), this message displays
if a part on the TPMS is not working properly. The tire
pressure light also flashes and then remains on during
the same ignition cycle. See Tire Pressure Light on
page 4-29. Several conditions may cause this message
to appear. See Tire Pressure Monitor Operation on
page 6-58 for more information. If the warning comes on
and stays on, there may be a problem with the TPMS.
See your dealer/retailer.
TIRE LEARN ON
If your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS) and does not have the
Remote Keyless Entry (RKE) system, this message
displays when the TPMS is re-learning the tire positions
on your vehicle. The tire positions must be re-learned
after rotating the tires or after replacing a tire or sensor.
See Tire Inspection and Rotation on page 6-62 ,
Tire Pressure Monitor System on page 6-56 , and
Ination - Tire Pressure on page 6-55 for more
information.
TIRE LOW ADD AIR
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 is low.
The low tire pressure warning light will also come on.
See Tire Pressure Light on page 4-29 . 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. See Tires on
page 6-48, Loading the Vehicle on page 5-24 , and
Ination - Tire Pressure on page 6-55 . The DIC also
shows the tire pressure values. See DIC Operation
and Displays on page 4-36 .
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