2007 CHEVROLET UPLANDER cooling

{CAUTION:
It can be dangerous to drive with the
liftgate open because carbon monoxide
(CO) gas can come into your vehicle. You
cannot see or smell CO. It can cause
unconsciousness and even death. If you
must drive with the liftgate open or if
electrical wiring or other cable
connections must pass through the seal
between the body and the liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or
cooling system to its highest speed
and select the control setting that will
force outside air into your vehicle. See
Climate Control System on page 217
orDual Climate Control System on
page 220.
If you have air outlets on or under the
instrument panel, open them all the
way. SeeEngine Exhaust on page 163.To close the liftgate, pull down on the handle, then
rmly shut the liftgate. Do not drive with the
liftgate open, even slightly.
142

Cargo Lamp
The cargo lamp is located in the rear of your
vehicle, above the liftgate opening, and does not
have a switch. The cargo lamp will come on
each time you open a door, unless you turn on the
interior lamps override. SeeInterior Lamps
Control on page 207.
Electric Power Management
This vehicle has Electric Power Management
(EPM), an advanced control system. It estimates
the battery’s temperature and state of charge
and 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, 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 Battery
Voltage Low. If this message is displayed, it is
recommended that the driver reduce the electrical
loads as much as possible.
210

Climate Controls
Climate Control System
With this system you can control the heating,
cooling and ventilation for your vehicle.
Operation
Turn the right knob clockwise or counterclockwise
to direct the airow inside of your vehicle.To change the current mode, select one of the
following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs half of the air to
the instrument panel outlets, then directs the
remaining air to the oor outlets. Cooler air
is directed to the upper outlets and warmer air to
the oor outlets.
6(Floor):This mode directs most of the air 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.
The right knob can also be used to select defog or
defrost mode. For more information, see
“Defogging and Defrosting” later in this section.
Outside Air:This mode will be automatically
selected when your vehicle is in any mode except
maximum air conditioning.
217

A(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan
speed. Turn the knob to 0 to turn off the fan.
The fan must be turned on for the air conditioning
compressor to operate.
Temperature Control:Turn the center knob
clockwise or counterclockwise to increase
or decrease the air temperature inside your
vehicle.
#(Air Conditioning):Press this button to turn
the air-conditioning system on or off. When it
is pressed, an indicator light in the button will come
on to let you know that air conditioning is
activated.
You may notice a slight change in engine
performance 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 your vehicle to cool down.
It also helps the system to operate more efficiently.The air conditioning system removes moisture
from the air, so you may sometimes notice a small
amount of water dripping underneath your
vehicle while idling or after turning off the engine.
This is normal.
@MAX A/C (Maximum Air Conditioning):
Turn the right knob to this position for maximum air
conditioning. This will select air conditioning and
recirculation for maximum cooling of your
vehicle. This mode directs air to the instrument
panel outlets.
Recirculation:This mode keeps outside air from
coming in the vehicle. It can be used to prevent
outside air and odors from entering your vehicle or
help heat or cool the air inside your vehicle
more quickly. This mode will automatically be
selected when you select maximum air
conditioning.
((Heated Seats):Press this button to turn on
the heated seats. The button on the left controls
the driver’s seat and the button on the right
controls the passenger’s seat. SeeHeated Seats
on page 10for additional information.
218

Dual Climate Control System
Your vehicle may have a dual climate control
system. With this system you can control the
heating, cooling, and ventilation for your vehicle.
Operation
9
(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan
speed. Turn the knob to 0 to turn off the fan.
The fan must be turned on for the air conditioning
compressor to operate.Temperature Control:Use the driver’s and
passenger’s levers to increase or decrease the air
temperature inside your vehicle.
Turn the right knob clockwise or counterclockwise
to direct the airow inside of your vehicle.
To change the current mode, select one of the
following:
@MAX A/C (Maximum Air
Conditioning):Turn the right knob to this position
for maximum air conditioning. This will select air
conditioning and recirculation for maximum cooling
of your vehicle.
Recirculation:This mode keeps outside air from
coming in the vehicle. It can be used to prevent
outside air and odors from entering your vehicle or
help heat or cool the air inside your vehicle
more quickly. This mode will automatically be
selected when maximum air conditioning is
selected.
H(Vent):This mode directs air to the instrument
panel outlets.
220

Hill and Mountain Roads
Driving on steep hills or mountains is different
from driving in at or rolling terrain.If you drive regularly in steep country, or if you are
planning to visit there, here are some tips that
can make your trips safer and more enjoyable.
Keep your vehicle in good shape. Check
all uid levels and also the brakes, tires,
cooling system, and transaxle. These parts
can work hard on mountain roads.
{CAUTION:
If you do not shift down, your brakes
could get so hot that they would not work
well. You would then have poor braking or
even none going down a hill. You could
crash. Shift down to let your engine assist
your brakes on a steep downhill slope.
397

Weight of the Trailer
How heavy can a trailer safely be?
It depends on how you plan to use your rig. For
example, speed, altitude, road grades, outside
temperature, and how much your vehicle is used to
pull a trailer are all important. It can also depend on
any special equipment that you have on your
vehicle, and the amount of tongue weight the
vehicle can carry. See “Weight of the Trailer
Tongue” later in this section for more information.Maximum trailer weight is calculated assuming
only the driver is in the tow vehicle and it has all
the required trailering equipment. The weight
of additional optional equipment, passengers and
cargo in the tow vehicle must be subtracted
from the maximum trailer weight.
Look in the following chart to nd the maximum
trailer weight for your vehicle.
Vehicle Axle RatioMaximum Trailer
Weight*GCWR
Two-Wheel-Drive 3.29 3,500 lbs (1 588 kg) 8,500 lbs (3 856 kg)
Any vehicle without the V92 trailering package or heavy-duty cooling package is limited to a 2,000 lb (907 kg) trailer
rating and a 7,000 lb (3 175 kg) GCWR.
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and
trailer including any passengers, cargo, equipment and conversion. The GCWR for your vehicle should not be
exceeded.
You can ask your dealer for our trailering
information or advice, or you can write us at the
address listed in your Warranty and Owner
Assistance Information Booklet.In Canada, write to:
General Motors of Canada Limited
Customer Communication Center, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
414

Driving with a Trailer
{CAUTION:
If you have a rear-most window open and
you pull a trailer with your vehicle, carbon
monoxide (CO) could come into your
vehicle. You cannot see or smell CO. It
can cause unconsciousness or death. See
Engine Exhaust on page 163. To maximize
your safety when towing a trailer:
Have your exhaust system inspected
for leaks, and make necessary repairs
before starting on your trip.
Keep the rear-most windows closed.
CAUTION: (Continued)
CAUTION: (Continued)

If exhaust does come into your vehicle
through a window in the rear or
another opening, drive with your front,
main heating or cooling system on
and with the fan on any speed. This
will bring fresh, outside air into your
vehicle. Do not use the climate control
setting for maximum air because it
only recirculates the air inside your
vehicle. SeeClimate Control System
on page 217orDual Climate Control
System on page 220.
Towing a trailer requires a certain amount of
experience. Before setting out for the open road,
you will want to get to know your rig. Acquaint
yourself with the feel of handling and braking with
the added weight of the trailer. And always
keep in mind that the vehicle you are driving is
now a good deal longer and not nearly as
responsive as your vehicle is by itself.
419