engine CHEVROLET UPLANDER 2005 1.G Workshop Manual

Any of the following conditions may cause the traction
control system to turn off:
The traction control system is turned off by pressing
the traction control button located on the center of
the instrument panel. SeeTraction Control
System (TCS) on page 4-9.
The battery is low.
There is a traction control system failure. See your
GM dealer for service.
TRANSMISSION FLUID HOT
This message will display when the transaxle uid in
your vehicle is too hot. Stop the vehicle and allow it to
idle until it cools down. If the warning message
continues to display, have the vehicle serviced by your
GM dealer as soon as possible.
This message will display and a chime will sound only
while the ignition is in RUN. Press any of the DIC
buttons to acknowledge this message and to clear it
from the screen.This message will continue to display for two seconds if
it has not been acknowledged when the engine is
turned off. It will also re-display for two seconds if the
message has been acknowledged, but the condition still
exists when the engine is turned off.
If the condition still exists, the message will re-appear
when the engine is turned on.
TURN SIGNAL ON
This message will display as a reminder to turn off the
turn signal if you drive your vehicle for more than
about 0.75 mile (1.2 km) with a turn signal on. SeeTurn
Signal/Multifunction Lever on page 3-7.
This message displays and a chime sounds only when
the ignition is in RUN. This message will clear from
the screen if the turn signal is manually turned off, a turn
is completed, or the message is acknowledged.
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Press the menu button until CONTENT THEFT appears
on the DIC display. Press the set/reset button to
scroll through the following choices:
OFF:The content theft-deterrent system will be
turned off.
ON (default):The content theft-deterrent system will be
turned on.
When ON is selected, the content theft-deterrent system
will be armed when the vehicle is locked by pressing
the lock button on the remote keyless entry transmitter
or by pressing the power door lock switch. See
Content Theft-Deterrent on page 2-27andPower Door
Locks on page 2-12for more information.
Choose one of the available settings and press the
menu button while it is displayed on the DIC to select it
and move on to the next feature.
FOB LOCK FEEDBACK
This feature allows you to select the type of feedback
you will receive when locking the vehicle with the remote
keyless entry transmitter.Press the menu button until FOB LOCK FEEDBACK
appears on the DIC display. Press the set/reset button to
scroll through the following choices:
OFF:There will be no feedback when locking the
vehicle.
LIGHTS:The exterior lamps will ash when you press
the lock button on the remote keyless entry transmitter.
LIGHTS and HORN (default):The exterior lamps
will ash when you press the lock button on the remote
keyless entry transmitter, and the horn will sound
when the lock button is pressed again within
ve seconds of the previous command.
Choose one of the available settings and press the
menu button while it is displayed on the DIC to select it
and move on to the next feature.
REMOTE START
If your vehicle has remote start, this feature allows the
remote start to be turned OFF or ON. The remote
start feature allows you to start the engine from outside
of the vehicle using the remote keyless entry
transmitter. See “Remote Vehicle Start” underRemote
Keyless Entry System Operation on page 2-5for
more information.
3-72

Exiting the Personal Program Menu
The personal program menu will be exited when any of
the following occurs:
The vehicle is shifted out of PARK (P).
The vehicle is no longer in RUN.
The end of the personal program menu is reached.
Audio System(s)
Notice:Before adding any sound equipment to
your vehicle, such as an audio system, CD player,
CB radio, mobile telephone, or two-way radio, make
sure that it can be added by checking with your
dealer. Also, check federal rules covering mobile
radio and telephone units. If sound equipment can
be added, it is very important to do it properly.
Added sound equipment may interfere with
the operation of your vehicle’s engine, radio, or
other systems, and even damage them. Your
vehicle’s systems may interfere with the operation
of sound equipment that has been added.Figure out which audio system is in your vehicle, nd
out what your audio system can do, and how to operate
all of its controls.
Your vehicle has a feature called Retained Accessory
Power (RAP). With RAP, the audio system can be
played even after the ignition is turned off. SeeRetained
Accessory Power (RAP) on page 2-32for more
information.
Setting the Time
Press the H or the M button to enter clock mode. Press
and hold H until the correct hour appears on the
display. Press and hold M until the correct minute
appears on the display.
To change the time default setting from 12 hour to
24 hour, press either the H or the M button to enter the
clock mode, then press the tune knob to select
between the 12 or 24 hour display format. The clock
mode will automatically time out with the changed
display format set as the current default setting.
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Control of a Vehicle
You have three systems that make your vehicle go where
you want it to go. They are the brakes, the steering, and
the accelerator. All three systems have to do their work at
the places where the tires meet the road.
Sometimes, as when you are driving on snow or ice, it
is easy to ask more of those control systems than
the tires and road can provide. That means you can lose
control of your vehicle. SeeTraction Control System
(TCS) on page 4-9andStabiliTrak
®System on
page 4-10.
Braking
Braking action involves perception time and
reaction time.
First, you have to decide to push on the brake pedal.
That is perception time. Then you have to bring up your
foot and do it. That 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) travels66 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 your 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. Your brakes may not have time to cool
between hard stops. Your 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 engine ever stops while you are driving, brake
normally but do not pump your brakes. If you do,
the pedal may get harder to push down. If your 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 may take longer to stop and
the brake pedal will be harder to push.
4-6

Anti-Lock Brake System (ABS)
Your vehicle has anti-lock brakes. ABS is an advanced
electronic braking system that will help prevent a
braking skid.
When you start your engine and begin to drive away,
your anti-lock brake system will check itself. You
may hear a momentary motor or clicking noise while
this test is going on, and you may even notice that your
brake pedal moves or pulses a little. This is normal.
If there is a problem with
the anti-lock brake system,
this warning light will
stay on. SeeAnti-Lock
Brake System Warning
Light on page 3-38.
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.
4-7

Traction Control System (TCS)
Your vehicle may have a traction control system that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates if it senses that
one or both of the front wheels are spinning or beginning
to lose traction. When this happens, the system
brakes the spinning wheel(s) and/or reduces engine
power to limit wheel spin.
The TRACTION CONTROL ACTIVE message will come
on in the Driver Information Center (DIC) when the
traction control system is limiting wheel spin. You may
feel or hear the system working, but this is normal.
If your vehicle is in cruise control when the traction
control system begins to limit wheel spin, the cruise
control will automatically disengage. When road
conditions allow you to safely use it again, you may
re-engage the cruise control.This warning light will
come on to let you know if
there is a problem with
your traction control
system.
When this warning light is on, the system will not limit
wheel spin. Adjust your driving accordingly.
If the SERVICE TRACTION SYSTEM message in the
DIC comes on and stays on or comes on while you are
driving, there’s a problem with your traction control
system. Have the traction control system serviced by
your GM dealer as soon as possible.
When this warning message is on, the TRACTION
CONTROL OFF message in the DIC will come on to
remind you that the system will not limit wheel spin.
Adjust your driving accordingly.
4-9

The STABILITY CONTROL ACTIVE message will
appear on the DIC only when the system is both on and
activated. It means that an advanced
computer-controlled system has come on to help your
vehicle continue to go in the direction in which you
are steering. StabiliTrak
®activates when the computer
senses that your vehicle is just starting to spin, as it
might if you hit a patch of ice or other slippery spot on
the road. When the system activates, you may hear
a noise or feel a vibration in the brake pedal. This
is normal. When the STABILITY CONTROL ACTIVE
message is on, you should continue to steer in the
direction you want to go. The system is designed to help
you in bad weather or other difficult driving situations
by making the most of whatever road conditions
will permit. For more information on the stability
messages, seeDriver Information Center (DIC) on
page 3-45.
If the StabiliTrak
®system turns off, the traction control
system warning light will illuminate, and the STABILITY
CONTROL OFF message will appear on the DIC to
warn the driver that StabiliTrak
®is no longer available
to assist you with directional control of the vehicle.
Adjust your driving accordingly.To limit wheel spin and realize the full benets of the
stability enhancement system, you should normally
leave traction control on, but it may be necessary to turn
the system off if your vehicle is stuck in sand, mud,
ice or snow, and you want to “rock” your vehicle
to attempt to free it. SeeRocking Your Vehicle to Get It
Out on page 4-33andIf Your Vehicle is Stuck in
Sand, Mud, Ice or Snow on page 4-32.
Traction Control Operation
The traction control system is part of the StabiliTrak®
system. Traction control limits wheel spin by reducing
engine power to the wheels (engine speed
management) and by applying brakes to each individual
wheel (brake-traction control) as necessary.
The traction control system is enabled automatically
when you start your vehicle. It will activate and display
the TRACTION CONTROL ACTIVE message in the
DIC if it senses that one or both of the front wheels are
spinning or beginning to lose traction while driving.
4-11

If the brake traction-control system activates constantly
or if the brakes have heated up due to high-speed
braking, brake traction-control will be disabled and the
TRACTION CONTROL ACTIVE message will be
displayed. In the limited mode, the traction control
system will only use engine traction-control and is limited
in its ability to provide optimal performance since the
system will not utilize brake traction-control to control
slip on the drive wheels. The system will return to normal
operation after the brakes have cooled. This can take
up to two minutes or longer depending on brake usage.
The traction control system may activate on dry or
rough roads or under conditions such as heavy
acceleration while turning or abrupt upshifts/downshifts
of the transmission. When this happens you may
notice a reduction in acceleration, or may hear a noise
or vibration. This is normal.
If your vehicle is in cruise control when the system
activates, the STABILITY CONTROL ACTIVE message
will appear on the DIC and the cruise control will
automatically disengage. When road conditions allow
you to use cruise again, you may re-engage the cruise
control. SeeCruise Control on page 3-10.
StabiliTrak
®may also turn off automatically if it
determines that a problem exists with the system. If the
problem does not clear itself after restarting the
vehicle, you should see your dealer for service.
All-Wheel Drive (AWD) System
If your vehicle has all-wheel drive (AWD), the AWD
system operates automatically without any action
required by the driver. If the front drive wheels begin to
slip, the rear wheels will automatically begin to drive
the vehicle as required. There may be a slight
engagement noise during hard use but this is normal.
During heavy AWD applications, the engine torque may
be reduced to protect AWD system components. If
the vehicle is exposed to extended heavy AWD usage,
the AWD system will shut itself off to protect the
system from overheating. When the system cools down,
the AWD system will activate itself again automatically;
this cool-down can take up to 20 minutes depending
on outside temperature and vehicle use.
4-12

Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Steering Tips
Driving on Curves
It is important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on
the news happen on curves. Here is why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves.
The traction of the tires against the road surface makes
it possible for the vehicle to change its path when
you turn the front wheels. If there is no traction, inertia
will keep the vehicle going in the same direction. If
you have ever tried to steer a vehicle on wet ice, you
will understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While
you are in a curve, speed is the one factor you
can control.Suppose you are steering through a sharp curve.
Then you suddenly apply the brakes. Both control
systems — steering and braking — have to do their work
where the tires meet the road. Unless you have
four-wheel anti-lock brakes, adding the hard braking can
demand too much of those places. You can lose
control.
The same thing can happen if you are steering through
a sharp curve and you suddenly accelerate. Those
two control systems — steering and acceleration — can
overwhelm those places where the tires meet the
road and make you lose control. SeeTraction Control
System (TCS) on page 4-9andStabiliTrak
®System
on page 4-10.
What should you do if this ever happens? Ease up on
the brake or accelerator pedal, steer the vehicle the way
you want it to go, and slow down.
Speed limit signs near curves warn that you should
adjust your speed. Of course, the posted speeds
are based on good weather and road conditions. Under
less favorable conditions you will want to go slower.
If you need to reduce your speed as you approach
a curve, do it before you enter the curve, while your front
wheels are straight ahead.
Try to adjust your speed so you can “drive” through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until you are out of the curve, and then
accelerate gently into the straightaway.
4-13

While driving on a surface with reduced traction, try
your best to avoid sudden steering, acceleration,
or braking, including engine braking by shifting to a
lower gear. Any sudden changes could cause the tires
to slide. You may not realize the surface is slippery
until your vehicle is skidding. Learn to recognize warning
clues — such as enough water, ice, or packed snow
on the road to make a mirrored surface — and
slow down when you have any doubt.
Remember: Any anti-lock brake system (ABS) helps
avoid only the braking skid.Driving at Night
Night driving is more dangerous than day driving. One
reason is that some drivers are likely to be impaired — by
alcohol or drugs, with night vision problems, or by fatigue.
4-18