engine CHEVROLET UPLANDER 2009 1.G Owner's Manual

Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the voltage is
raised slightly to quickly put the charge back in. When the
state of charge is high, the voltage is lowered slightly to
prevent overcharging. If the vehicle has a voltmeter gage
or a voltage display on the Driver Information Center
(DIC), you may see the voltage move up or down. This is
normal. If there is a problem, an alert will be displayed.
The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles. This is
because the generator (alternator) may not be
spinning fast enough at idle to produce all the power
that is needed for very high electrical loads.A high electrical load occurs when several of the
following loads are on: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at
high speed, heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase engine
idle speed to generate more power, whenever needed.
It can temporarily reduce the power demands of some
accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels of
corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as Battery Saver Active or
Service Battery Charging System. If this message is
displayed, it is recommended that the driver reduce the
electrical loads as much as possible. SeeDIC Warnings
and Messages on page 3-51.
3-18

#(Air Conditioning):Press to turn the air
conditioning system on or off. The fan must be on to
operate the air conditioning. An indicator light comes
on when the air conditioning is on.
A slight change in engine performance may be
noticeable when the air conditioning compressor shuts
off and turns on again. This is normal. The system
is designed to make adjustments to help with fuel
economy while still maintaining the selected
temperature.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for the vehicle to cool down so the system
operates more efficiently.
The air conditioning system removes moisture from
the air, so a small amount of water might drip under
the vehicle while idling or after turning off the engine.
This is normal.
Outside Air:Outside air is automatically selected in
any mode, except maximum air conditioning.Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
window defogger on or off. An indicator light comes on
when the rear window defogger is on.
The rear window defogger turns off about 15 minutes
after the button is pressed. If turned on again, the
defogger will only run for about ve minutes before
turning off. The defogger can also be turned off
by turning off the engine.
Notice:Do not use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs would not be
covered by the vehicle warranty. Do not attach a
temporary vehicle license, tape, a decal or anything
similar to the defogger grid.
((Heated Seats):Press to turn on the heated seats.
SeeHeated Seats on page 1-3for additional information.
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)(Bi-Level):Air is divided between the instrument
panel and oor outlets. Some air is directed towards the
windshield and side window outlets.
6(Floor):Air is directed to the oor outlets. Use this
mode to send air to the rear of the vehicle. Keep the
area under the front seats free of objects that could
obstruct airow to the rear of the vehicle.
-(Defog):This mode clears the windows of fog or
moisture. Air is directed to the windshield and the oor
outlets. When this mode is selected, the system runs
the air-conditioning compressor unless the outside
temperature is at or below freezing. The recirculation
mode cannot be selected while in the defog mode.
0(Defrost):This mode clears the windshield of fog
or frost more quickly. Air is directed to the windshield
and the side window outlets, with some air directed to
the oor outlets. In this mode, the system automatically
runs the air-conditioning system, unless the outside
temperature is at or below freezing. Recirculation cannot
be selected while in the defrost mode.
Do not drive the vehicle until all the windows are clear.
#(Air Conditioning):Press to turn the air
conditioning system on or off. The fan must be on
to operate the air conditioning. An indicator light
comes on when the air conditioning is on.
A slight change in engine performance may be
noticeable when the air conditioning turns off and on
again. This is normal. The system is designed to make
adjustments to help with fuel economy while still
maintaining the selected temperature.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for the vehicle to cool down so the system
operates more efficiently.
The air conditioning system removes moisture from
the air, so a small amount of water might drip under
the vehicle while idling or after turning off the engine.
This is normal.
Outside Air:Outside air is automatically selected in
any mode, except maximum air conditioning.
3-26

Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
window defogger on or off. An indicator light comes on
when the rear window defogger is on.
The rear window defogger turns off about 15 minutes
after the button is pressed. If turned on again, the
defogger will only run for about ve minutes before
turning off. The defogger can also be turned off
by turning off the engine.
Notice:Do not use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs would not be
covered by the vehicle warranty. Do not attach a
temporary vehicle license, tape, a decal or anything
similar to the defogger grid.
((Heated Seats):Press to turn on the heated seats.
SeeHeated Seats on page 1-3for additional
information.
Outlet Adjustment
Use the louvers located on the air outlets to change the
direction of the airow.
Use the thumbwheels on the driver side and passenger
side air outlets to open or close the airow from
these outlets.
Operation Tips

Clear away any ice, snow, or leaves from the air
inlets at the base of the vehicle that could block
the ow of air into the vehicle.
Do not use any non-GM approved hood deectors
that could adversely affect the performance of the
system.
Keep the path under the front seats clear of objects
to help circulate the air inside of the vehicle more
effectively.
3-27

2. Push the tab, located on the left of the inner access
panel, to the right.
3. The rst air lter will pull straight out. To remove
the second, reach in and slide it toward the
opening. Pull the second lter out.
4. Replace the lters by reversing Step 3. Make sure
the lters are inserted so that the sealing foam is
angled in the same direction on both lters. See
Maintenance Replacement Parts on page 6-13for
the type of lter needed.5. Close the inner access door, while squeezing the
tab. Be sure it is tightly closed.
6. Snap the outer access panel into the back of the
glove box.
Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something
is wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention
to the warning lights and gages could prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is
started to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there may
be a problem, check the section that explains what to do.
Follow this manual’s advice. Waiting to do repairs can be
costly and even dangerous.
3-30

Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour (km/h).
Your odometer shows how far your vehicle has
been driven, in either miles (used in the United States)
or kilometers (used in Canada).
Your vehicle has a tamper-resistant odometer.
You may wonder what happens if your vehicle needs a
new odometer installed. The new one can be set to
the mileage total of the old odometer.
Trip Odometer
The trip odometer can display how far the vehicle has
been driven since it was last reset.
For more information seeDIC Operation and Displays
on page 3-44.
Tachometer
The tachometer displays the engine speed in revolutions
per minute (rpm).
Safety Belt Reminders
Safety Belt Reminder Light
When the engine is started, a chime sounds for
several seconds to remind people to fasten their safety
belts, unless the driver’s safety belt is already buckled.
The safety belt light comes
on and stays on for
several seconds, then
ashes for several more.
This chime and light are repeated if the driver remains
unbuckled and the vehicle is in motion. If the driver’s
safety belt is already buckled, neither the chime nor the
light comes on.
Passenger Safety Belt Reminder Light
Several seconds after the engine is started, a chime
sounds for several seconds to remind the front passenger
to buckle their safety belt. This only occurs if the
passenger airbag is enabled. SeePassenger Sensing
System on page 1-85for more information. The
passenger safety belt light, located on the instrument
panel, comes on and stays on for several seconds and
then ashes for several more.
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This chime and light are
repeated if the passenger
remains unbuckled and
the vehicle is in motion.
If the passenger safety belt is buckled, neither the
chime nor the light comes on.
Airbag Readiness Light
The system checks the airbag’s electrical system for
possible malfunctions. If the light stays on it indicates
there is an electrical problem. The system check
includes the airbag sensor, the pretensioners, the airbag
modules, the wiring and the crash sensing and
diagnostic module. For more information on the airbag
system, seeAirbag System on page 1-77.The airbag readiness light
ashes for a few seconds
when the engine is
started. If the light does
not come on then, have it
xed immediately.
{CAUTION:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not
inate in a crash, or they could even inate
without a crash. To help avoid injury, have the
vehicle serviced right away.
If there is a problem with the airbag system, an airbag
Driver Information Center (DIC) message can also come
on. SeeDIC Warnings and Messages on page 3-51
for more information.
3-33

Charging System Light
This light comes on briey
when the ignition key is
turned to start, 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.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a problem
with the charging system. A charging system message in
the Driver Information Center (DIC) can also appear.
SeeDIC Warnings and Messages on page 3-51for
more information. This light could indicate that there are
problems with a generator drive belt, or that there is an
electrical problem. Have it checked right away. If the
vehicle must be driven a short distance with the light on,
turn off accessories, such as the radio and air
conditioner.
Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. The light
will stay on if your parking brake does not release fully.
If it stays on after your parking brake is fully released, it
means you have a brake problem.
Your vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop you. For good braking, though,
you need both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.
This light should come on
briey when you turn the
ignition key to RUN.
If it does not come on then, have it xed so it will be
ready to warn you if there is a problem.
3-35

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. SeeAntilock Brake
System (ABS) Warning Light on page 3-36and
Towing Your Vehicle on page 4-24.
{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.
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 3-35.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-51
for all brake related DIC messages.
3-36

Traction Control System (TCS)
Warning Light
Your vehicle is equipped
with a traction control
system warning light.
The traction control system warning light may come on
for the following reasons:
If you turn the system off by pressing the traction
control button. To turn the system back on, press the
button again. The warning light should go off. See
Traction Control System (TCS) on page 4-6for more
information.
If there’s a brake system problem that is specically
related to traction control, the traction control system
will turn off and the warning light will come on. If your
brakes begin to overheat, the traction control system
will turn off and the warning light will come on until
your brakes cool down.
If the traction control system is affected by an
engine-related problem, the system will turn
off and the warning light will come on.If the traction control system warning light comes on
and stays on for an extended period of time when the
system is turned on, your vehicle needs service.
Engine Coolant Temperature Gage
This gage shows the
engine coolant
temperature. If the red
gage lamp turns on, 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 5-28.
3-37