2010 GMC ACADIA check engine

2010 GMC Acadia Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-14
Performance and Maintenance . . . . . . . . . . . . . . . . 1-18
Keys, Doors and Windows . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vehicle Security . . . . . . . . . . . . . . 2-13
Exterior Mirrors . . . . . . . . . . . . . . . 2-16
Interior Mirrors . . . . . . . . . . . . . . . . 2-18
Windows . . . . . . . . . . . . . . . . . . . . . 2-19
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts . . . . . . . . . . . . . . . . . . 3-14
Airbag System . . . . . . . . . . . . . . . . 3-30
Child Restraints . . . . . . . . . . . . . . 3-45 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-3
Roof Rack System . . . . . . . . . . . . . 4-4
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gages, and
Indicators . . . . . . . . . . . . . . . . . . . 5-10
Information Displays . . . . . . . . . . 5-23
Vehicle Messages . . . . . . . . . . . . 5-34
Vehicle Personalization . . . . . . . 5-44
Universal Remote System . . . . 5-51
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-5
Lighting Features . . . . . . . . . . . . . . 6-6
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Audio Players . . . . . . . . . . . . . . . . 7-12
Rear Seat Infotainment . . . . . . . 7-36
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-46 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-11
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-15
Engine Exhaust . . . . . . . . . . . . . . 9-21
Automatic Transmission . . . . . . 9-22
Drive Systems . . . . . . . . . . . . . . . . 9-25
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-26
Ride Control Systems . . . . . . . . 9-28
Cruise Control . . . . . . . . . . . . . . . . 9-30
Object Detection Systems . . . . 9-32
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-39
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-44
Conversions and Add-Ons . . . 9-55
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-3
Vehicle Checks . . . . . . . . . . . . . . . 10-4
Headlamp Aiming . . . . . . . . . . . 10-28
Bulb Replacement . . . . . . . . . . 10-29
Electrical System . . . . . . . . . . . . 10-30
Wheels and Tires . . . . . . . . . . . 10-37

Keys, Doors and Windows 2-5
Remote Vehicle Start
This vehicle may have a remote
starting feature that starts the
engine from outside of the vehicle.
/(Remote Start): This button is
located on the RKE transmitter if the
vehicle has remote start.
Laws in some communities may
restrict the use of remote starters.
For example, some laws may
require a person using the remote
start to have the vehicle in view
when doing so. Check local
regulations for any requirements on
remote starting of vehicles.
Do not use the remote start feature
if the vehicle is low on fuel. The
vehicle could run out of fuel.
If the vehicle has the remote start
feature, the RKE transmitter
functions have an increased range
of operation. However, the range
may be less while the vehicle is
running. There are other conditions which
can affect the performance of the
transmitter, see
Remote Keyless
Entry (RKE) System
on page 2‑2for additional information.
Starting the Engine Using
Remote Start
To start the vehicle:
1. Aim the RKE transmitter at the vehicle.
2. Press
Qon the RKE transmitter.
3. Immediately after completing Step 2, press and hold
/until
the parking lamps flash. If the
vehicle's lights can not be seen,
press and hold
/for at least
four seconds.
When the vehicle starts the parking
lamps will turn on and remain on as
long as the engine is running. The
doors will be locked and the climate
control system will operate
automatically if the vehicle has the automatic system, or at the same
setting as when the vehicle was last
turned off.
If the vehicle has an automatic
climate control system and heated
seats, the heated seats turn on
during colder outside temperatures
and shut off when the key is turned
to ON/RUN. See
Heated Front
Seats
on page 3‑8or Heated and
Ventilated Front Seatson
page 3‑9for more information.
The rear window defogger and
heated mirrors, if the vehicle has
them, turn on during colder outside
temperatures and turn off when the
key is turned to ON/RUN.
After entering the vehicle during a
remote start, insert and turn the key
to the ON/RUN position to drive the
vehicle.
If the vehicle is left running it
automatically shuts off after
10 minutes unless a time extension
has been done.

2-10 Keys, Doors and Windows
Power Liftgate Operation
{WARNING
Exhaust gases can enter the
vehicle if it is driven with the
liftgate, trunk/hatch open, or with
any objects that pass through the
seal between the body and the
trunk/hatch or liftgate. Engine
exhaust contains Carbon
Monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
If the vehicle must be driven with
the liftgate, or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on
or under the instrument
panel.(Continued)
WARNING (Continued)
.Adjust the Climate Control
system to a setting that
brings in only outside air and
set the fan speed to the
highest setting. See Climate
Control System in the Index.
.If the vehicle is equipped with
a power liftgate, disable the
power liftgate function.
For more information about
carbon monoxide, see Engine
Exhaust on page 9‑21.
The vehicle may have a power
liftgate. The vehicle must be in
P (Park) to use this feature. The taillamps will flash and a chime
will sound when the power liftgate
is used.
{WARNING
You or others could be injured if
caught in the path of the power
liftgate. Make sure there is no one
in the way of the liftgate as it is
opening and closing.
Notice: If you open the liftgate
without checking for overhead
obstructions such as a garage
door, you could damage the
liftgate or the liftgate glass.
Always check to make sure the
area above and behind the liftgate
is clear before opening it.

2-14 Keys, Doors and Windows
3. Get out of the vehicle, close thedoor and wait for the security
light to go out.
4. Then reach in through the window, unlock the door with the
manual door lock and open the
door. This should set off the
alarm.
If the alarm does not sound when it
should, but the vehicle's headlamps
flash, check to see if the horn
works. The horn fuse may be blown.
To replace the fuse, see Fuses and
Circuit Breakers on page 10‑31.
If the alarm does not sound or the
vehicle's headlamps do not flash,
see your dealer/retailer for service.
Immobilizer
See Radio Frequency Statementon
page 13‑16for information regarding
Part 15 of the Federal
Communications Commission (FCC)
Rules and RSS-210/211 of Industry
and Science Canada.
Immobilizer Operation
This vehicle has PASS-Key®III+
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key
®III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN, ACC/ACCESSORY or
START from the LOCK/OFF
position.
You do not have to manually arm or
disarm the system.
The security light comes on if there
is a problem with arming or
disarming the theft-deterrent
system.
When the PASS-Key
®III+ system
senses an incorrect key, the vehicle
does not start. Anyone using a
trial-and-error method to start the vehicle will be discouraged because
of the high number of electrical key
codes.
If the engine does not start and the
security light on the instrument
panel comes on when trying to start
the vehicle, there may be a problem
with your theft-deterrent system.
Turn the ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key and check
the fuses. See
Fuses and Circuit
Breakers
on page 10‑31for
additional information. If the engine
still does not start with the other key,
the vehicle needs service. If the
vehicle does start, the first key may
be faulty. See your dealer/retailer
who can service the PASS-Key
®III+
to have a new key made. In an
emergency, contact Roadside
Assistance. See Roadside
Assistance Program on page 13‑5.
It is possible for the PASS-Key
®III+
decoder to learn the transponder
value of a new or replacement key.

5-10 Instruments and Controls
The indicator light does not come on
when the ignition is in LOCK/OFF or
if no equipment is plugged into the
outlet.
If equipment is connected using
more than 150 watts or a system
fault is detected, a protection circuit
shuts off the power supply and the
indicator light turns off. To reset the
circuit, unplug the item and plug it
back in or turn the Remote
Accessory Power (RAP) off and
then back on. SeeRetained
Accessory Power (RAP)
on
page 9‑17. The power restarts
when equipment using 150 watts or
less is plugged into the outlet and a
system fault is not detected. The power outlet is not designed for
the following electrical equipment
and may not work properly if these
items are plugged into the power
outlet:
.Equipment with high initial peak
wattage such as:
compressor-driven refrigerators
and electric power tools.
.Other equipment requiring an
extremely stable power supply
such as:
microcomputer-controlled
electric blankets, touch sensor
lamps, etc.
See High Voltage Devices and
Wiring on page 10‑30.
Warning Lights,
Gages, and Indicators
Warning lights come on when there
could be a problem with a vehicle
function. Some warning lights come
on briefly when the engine is started
to indicate they are working.
Gages can indicate when there
could be a problem with a vehicle
function. 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.

5-14 Instruments and Controls
Safety Belt Reminders
Driver Safety Belt Reminder
Light
The driver safety belt reminder light
on the instrument panel cluster.
When the engine is started this light
and the chime come on and stay on
for several seconds to remind the
driver to fasten the safety belt. The
light also begins to flash.
This cycle repeats if the driver
remains unbuckled and the vehicle
is moving.
If the driver safety belt is already
buckled, neither the light nor chime
comes on.
Passenger Safety Belt
Reminder Light
When the engine is started this light
and the chime come on and stay on
for several seconds to remind the
passenger to fasten their safety belt.
The light also begins to flash.
This only occurs if the passenger
airbag is enabled. SeePassenger
Sensing System
on page 3‑38for
more information.
This cycle repeats if the passenger
remains unbuckled and the vehicle
is moving.
If the passenger safety belt is
buckled, neither the chime nor the
light comes on.
The front passenger safety belt
warning light and chime may turn on
if an object is put on the seat such as a briefcase, handbag, grocery
bag, laptop or other electronic
device. To turn off the warning light
and or chime, remove the object
from the seat or buckle the
safety belt.
Airbag Readiness Light
This light shows if 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, see
Airbag System
on
page 3‑30.
This light will come on and stay on
for several seconds when the
vehicle is started. Then the light
should go out.

5-16 Instruments and Controls
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer/retailer for service.
{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light
on page 5‑14for more
information, including important
safety information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
It should go out when the engine is
started.
If the light stays on, or comes on
while driving, there may be a
problem with the electrical charging
system. Have it checked by your
dealer/retailer. Driving while this
light is on could drain the battery.
When this light comes on, the Driver
Information Center (DIC) also
displays the SERVICE BATTERY
CHARGING SYSTEM message.
See Vehicle Messages
on
page 5‑34for more information. If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction
Indicator Lamp
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 comes 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.

Instruments and Controls 5-17
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: Modifications 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. Modifications 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 10‑3.
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.
The following can 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.
.Make sure the fuel cap is fully
installed. See Filling the Tankon
page 9‑42. 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.