2009 GMC ACADIA sensor

Notice:Improper use of the
power outlet can cause damage
not covered by the warranty.
Do not hang any type of
accessory or accessory bracket
from the plug because the
power outlets are designed for
accessory power plugs only.
Power Outlet 115
Volt Alternating Current
For vehicles with this power outlet,
it can be used to plug in electrical
equipment that uses a maximum
limit of 150 watts.The power outlet is located on the
rear of the center console.
An indicator light on the outlet turns
on to show it is in use. The light
comes on when the ignition is
in ON/RUN and equipment requiring
less than 150 watts is plugged
into the outlet, and no system fault
is detected.
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 2-21.
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.
SeeHigh Voltage Devices and
Wiring on page 5-89.
Instrument Panel 3-21

For vehicles with heated outside
rearview mirrors, fog or frost
is cleared from the surface of the
mirror when the rear window
defog button is pressed.
Notice:Do not use a razor blade
or sharp object to clear the
inside rear window. Do not adhere
anything to the defogger grid
lines in the rear glass. These
actions may damage the rear
defogger. Repairs would not be
covered by your warranty.
REAR:Press to turn the rear
heating and air conditioning on or
off. SeeRear Air Conditioning
and Heating System on page 3-31
orRear Air Conditioning and
Heating System and Electronic
Climate Controls on page 3-32.Sensors
The solar sensor, located in the
defrost grille in the middle of
the instrument panel, monitors the
solar heat. Do not cover the
solar sensor or the system will not
work properly.The interior temperature sensor
located on the instrument panel to
the right of the steering column,
measures the temperature of the air
inside the vehicle.
There is also an exterior temperature
sensor located behind the front grille.
This sensor reads the outside air
temperature and helps maintain the
temperature inside the vehicle. Any
cover on the front of the vehicle
could cause a false reading in the
displayed temperature.
The climate control system uses the
information from these sensors to
maintain comfort settings by
Instrument Panel 3-29

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, seeAirbag System on
page 1-48.
This light will come on and stay on
for several seconds when the
vehicle is started. Then the light
should go out.If the airbag readiness light stays on
after the vehicle has been started
or comes on when while driving,
the airbag system may not work
properly. Have the vehicle serviced
right away.
{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.
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. SeePassenger
Sensing System on page 1-55
for important safety information.
The instrument panel has a
passenger airbag status indicator.
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF, or the symbol
for on and off, for several seconds
as a system check. If you are
using remote start to start the
United States
Canada
3-36 Instrument Panel

RIGHT REAR DOOR OPEN
This message displays and a chime
sounds if the passenger side rear
door is not fully closed and the
vehicle is shifted out of P (Park).
Stop and turn off the vehicle, check
the door for obstructions, and
close the door again. Check to see
if the message still appears on
the DIC.
SERVICE A/C (Air
Conditioning) SYSTEM
This message displays when the
electronic sensors that control
the air conditioning and heating
systems are no longer working.
Have the climate control system
serviced by your dealer/retailer
if you notice a drop in heating and
air conditioning efficiency.
SERVICE AIR BAG
This message displays if there is a
problem with the airbag system.
Have your dealer/retailer inspect the
system for problems. SeeAirbagReadiness Light on page 3-36and
Airbag System on page 1-48for
more information.
SERVICE ALL WHEEL DRIVE
If your vehicle has the All-Wheel
Drive (AWD) system, this message
displays if there is a problem
with this system. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart
the vehicle after 30 seconds
and check for the message on the
DIC display. If the message is
still displayed or appears again
when you begin driving, the AWD
system needs service. See your
dealer/retailer.
SERVICE BATTERY
CHARGING SYSTEM
On some vehicles, this message
displays if there is a problem
with the battery charging system.
Under certain conditions, the
charging system light may also turn
on in the instrument panel cluster.
SeeCharging System Light onpage 3-37. Driving with this problem
could drain the battery. Turn off
all unnecessary accessories.
Have the electrical system checked
as soon as possible. See your
dealer/retailer.
SERVICE BRAKE SYSTEM
This message displays along with
the brake system warning light
if there is a problem with the brake
system. SeeBrake System
Warning Light on page 3-38. If this
message appears, stop as soon
as possible and turn off the vehicle.
Restart the vehicle and check for
the message on the DIC display.
If the message is still displayed or
appears again when you begin
driving, the brake system needs
service as soon as possible.
See your dealer/retailer.
SERVICE PARK ASSIST
If your vehicle has the Ultrasonic
Rear Parking Assist (URPA) system,
this message displays if there is a
problem with the URPA system.
Instrument Panel 3-61

SERVICE VEHICLE SOON
This message displays when
a non-emissions related malfunction
occurs. Have the vehicle serviced
by your dealer/retailer as soon
as possible.
SPEED LIMITED TO
XXX MPH (KM/H)
This message displays when your
vehicle speed is limited to 80 mph
(128 km/h) because the vehicle
detects a problem in the speed
variable assist steering system.
Have your vehicle serviced by
your dealer/retailer.
STARTING DISABLED
SERVICE THROTTLE
This message displays when your
vehicle’s throttle system is not
functioning properly. Have your
vehicle serviced by your
dealer/retailer.
THEFT ATTEMPTED
This message displays if the content
theft-deterrent system has detected
a break-in attempt while you
were away from your vehicle.
SeeContent Theft-Deterrent on
page 2-16for more information.
TIGHTEN GAS CAP
This message may display along
with the check engine light on the
instrument panel cluster if the
vehicle’s fuel cap is not tightened
properly. SeeMalfunction Indicator
Lamp on page 3-41. Reinstall the
fuel cap fully. SeeFilling the Tank on
page 5-7. 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
this light and message off.
TIRE LEARNING ACTIVE
On vehicles with the Tire Pressure
Monitor System (TPMS), 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. SeeTire Inspection and
Rotation on page 5-47,Tire
Pressure Monitor System on
page 5-42, andInflation - Tire
Pressure on page 5-41for more
information.
TRACTION CONTROL OFF
This message displays when
the Traction Control System (TCS)
is turned off. Adjust your driving
accordingly. SeeStabiliTrak
®
System on page 4-5for more
information. This message clears
itself after 10 seconds.
Instrument Panel 3-63

When to Check
Check your tires once a month
or more. Do not forget to check
the compact spare tire, if the
vehicle has one. It should be at
60 psi (420 kPa). For additional
information regarding the
compact spare tire, seeCompact
Spare Tire on page 5-81.
How to Check
Use a good quality pocket-type
gage to check tire pressure.
You cannot tell if your tires are
properly inated simply by
looking at them. Radial tires may
look properly inated even when
they are under-inated. Check
the tire’s ination pressure when
the tires are cold. Cold means
your vehicle has been sitting for
at least three hours or driven
no more than 1 mile (1.6 km).Remove the valve cap from the
tire valve stem. Press the tire
gage rmly onto the valve to get
a pressure measurement. If the
cold tire ination pressure
matches the recommended
pressure on the Tire and Loading
Information label, no further
adjustment is necessary. If the
ination pressure is low, add air
until you reach the recommended
amount.
If you overll the tire, release air
by pushing on the metal stem
in the center of the tire valve.
Re-check the tire pressure with
the tire gage.
Be sure to put the valve caps
back on the valve stems.
They help prevent leaks by
keeping out dirt and moisture.Tire Pressure Monitor
System
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor
the air pressure in your vehicle’s tires
and transmit tire pressure readings to
a receiver located in the vehicle.
Each tire, including the spare
(if provided), should be checked
monthly when cold and inated to the
ination pressure recommended by
the vehicle manufacturer on the
vehicle placard or tire ination
pressure label. (If your vehicle has
tires of a different size than the size
indicated on the vehicle placard or
tire ination pressure label, you
should determine the proper tire
ination pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your
tires is signicantly under-inated.
5-42 Service and Appearance Care

Changes or modications to
this system by other than an
authorized service facility could void
authorization to use this equipment.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn
the driver when a low tire pressure
condition exists. TPMS sensors
are mounted onto each tire
and wheel assembly, excluding the
spare tire and wheel assembly,
if the vehicle has one. The TPMS
sensors monitor the air pressure in
the vehicle’s tires and transmits
the tire pressure readings to
a receiver located in the vehicle.When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning
light located on the instrument
panel cluster.
At the same time a message to
check the pressure in a specic tire
appears on the Driver Information
Center (DIC) display. The low tire
pressure warning light and the DIC
warning message come on at each
ignition cycle until the tires are
inated to the correct ination
pressure. Using the DIC, tire
pressure levels can be viewed by
the driver. For additional information
and details about the DIC operation
and displays seeDIC Operation and
Displays (With DIC Buttons) on
page 3-46orDIC Operation and
Displays (Without DIC Buttons) on
page 3-51andDIC Warnings and
Messages on page 3-56.The low tire pressure warning light
may come on in cool weather
when the vehicle is rst started, and
then turn off as you start to drive.
This could be an early indicator that
the air pressure in the tire(s) are
getting low and need to be inated
to the proper pressure.
A Tire and Loading Information
label, attached to your vehicle,
shows the size of your vehicle’s
original equipment tires and
the correct ination pressure for
your vehicle’s tires when they
are cold. SeeLoading the Vehicle
on page 4-16, for an example of
the Tire and Loading Information
label and its location on your
vehicle. Also seeInflation - Tire
Pressure on page 5-41.
Your vehicle’s TPMS can warn you
about a low tire pressure condition
but it does not replace normal tire
maintenance. SeeTire Inspection
and Rotation on page 5-47andTires
on page 5-35.
5-44 Service and Appearance Care

Notice:Using non-approved tire
sealants could damage the Tire
Pressure Monitor System (TPMS)
sensors. TPMS sensor damage
caused by using an incorrect tire
sealant is not covered by the
vehicle warranty. Always use the
GM approved tire sealant available
through your dealer/retailer.
Your vehicle, when new, may have
included a factory-installed Tire
Inator Kit. This kit uses a GM
approved liquid tire sealant. Using
non-approved tire sealants could
damage the TPMS sensors.
See Tire Sealant and Compressor
Kit for information regarding the
inator kit materials and instructions.
TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire warning light ashes for
about one minute and then stays
on for the remainder of the ignitioncycle. A DIC warning message is
also displayed. The low tire warning
light and DIC warning message
come on at each ignition cycle until
the problem is corrected. Some of
the conditions that can cause the
malfunction light and DIC message
to come on are:
One of the road tires has been
replaced with the spare tire, if
your vehicle has one. The spare
tire does not have a TPMS
sensor. The TPMS malfunction
light and DIC message should go
off once you re-install the road tire
containing the TPMS sensor.
The TPMS sensor matching
process was started but not
completed or not completed
successfully after rotating the
vehicle’s tires. The DIC message
and TPMS malfunction light
should go off once the TPMS
sensor matching process is
performed successfully. See
“TPMS Sensor Matching Process”
later in this section.
One or more TPMS sensors
are missing or damaged. The
DIC message and the TPMS
malfunction light should go off
when the TPMS sensors are
installed and the sensor
matching process is performed
successfully. See your dealer/
retailer for service.
Replacement tires or wheels do
not match your vehicle’s original
equipment tires or wheels. Tires
and wheels other than those
recommended for your vehicle
could prevent the TPMS from
functioning properly. SeeBuying
New Tires on page 5-49.
Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning it
cannot detect or signal a low tire
condition. See your dealer/ retailer
for service if the TPMS malfunction
light and DIC message comes on
and stays on.
Service and Appearance Care 5-45