2010 GMC ACADIA sensor

Instruments and Controls 5-41
Service Vehicle Messages
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 POWER STEERING
This message displays when a
problem is detected with the power
steering system. When this
message is displayed, you may
notice that the effort required to
steer the vehicle increases or feels
heavier, but you will still be able to
steer the vehicle. Have your vehicle
serviced by your dealer/retailer
immediately.
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.
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.
Tire Messages
TIRE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low.This message also displays
LEFT FRT (left front), RIGHT FRT
(right front), LEFT RR (left rear),
or RIGHT RR (right rear) to indicate
the location of the low tire.
The low tire pressure warning light
will also come on. See
Tire
Pressure Light on page 5‑21.
If a tire pressure message appears
on the DIC, stop as soon as you
can. Inflate the tires by adding air
until the tire pressure is equal to the
values shown on the Tire Loading
Information label. See Tires
on
page 10‑37, Vehicle Load Limitson
page 9‑10, and Tire Pressureon
page 10‑43.
You can receive more than one tire
pressure message at a time. To
read the other messages that may
have been sent at the same time,
press the set/reset button or the trip
odometer reset stem. The DIC also
shows the tire pressure values. See
Driver Information Center (DIC)
(With DIC Buttons)
on page 5‑23or

5-42 Instruments and Controls
Driver Information Center (DIC)
(Without DIC Buttons)on
page 5‑28.
SERVICE TIRE MONITOR
SYSTEM
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
TPMS is not working properly. The
tire pressure light also flashes and
then remains on during the same
ignition cycle. See Tire Pressure
Light
on page 5‑21. Several
conditions may cause this message
to appear. See Tire Pressure
Monitor Operation
on page 10‑45for
more information. If the warning
comes on and stays on, there may
be a problem with the TPMS. See
your dealer/retailer.
TIRE LEARNING ACTIVE
This message displays when the
Tire Pressure Monitor System
(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. See
Tire Rotation
on
page 10‑49, Tire Pressure Monitor
Systemon page 10‑44, and Tire
Pressureon page 10‑43for more
information.
Transmission Messages
ALL WHEEL DRIVE OFF
If your vehicle has the All-Wheel
Drive (AWD) system, this message
displays when there is a compact
spare tire on the vehicle, when the
Antilock Brake System (ABS)
warning light comes on, or when the
rear differential fluid is overheating.
This message turns off when the
differential fluid cools.
The AWD system is disabled until
the compact spare tire is replaced
by a full-size tire. If the warning
message is still on after putting on
the full-size tire, you need to reset
the warning message. To reset the warning message, turn the ignition
off and then back on again after
30 seconds. If the message stays
on, see your dealer/retailer right
away. See
All-Wheel Drive
on
page 9‑25for 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 TRANSMISSION
This message displays when there
is a problem with the transmission.
See your dealer/retailer for service.

Lighting 6-3
Daytime Running Lamps
(DRL)/Automatic
Headlamp System
Daytime Running Lamps (DRL) can
make it easier for others to see the
front of your vehicle during the day.
Fully functional daytime running
lamps are required on all vehicles
first sold in Canada.
The DRL system makes either the
low-beam headlamps come on at a
reduced brightness or the DRL
lights, for vehicles with High
Intensity Discharge (HID)
headlamps when the following
conditions are met:
.The ignition is in the ON/RUN
position.
.The exterior lamps control is
in AUTO.
.The engine is running.When the DRL are on, the regular
headlamps, taillamps, sidemarker,
and other lamps will not be on. The
instrument panel and cluster will
also not be lit.
For vehicles with HID headlamps,
if the DRL are on and the left or
right turn signal lamp is turned on,
the left or right DRL will go off.
The headlamps automatically
change from DRL to the regular
headlamps depending on the
darkness of the surroundings. The
other lamps that come on with the
headlamps will also come on.
When it is bright enough outside,
the headlamps will go off and the
DRL will come on.
The regular headlamp system
should be turned on when needed.
Do not cover the light sensor on top
of the instrument panel because it
works with the DRL.
Hazard Warning Flashers
|
Hazard Warning Flasher:
Press this button located on the
instrument panel below the audio
system, to make the front and rear
turn signal lamps flash on and off.
This warns others that you are
having trouble. Press again to turn
the flashers off.
The turn signals do not work while
the hazard warning flashers are on.

8-8 Climate Controls
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
<(Rear Window Defogger):
Press to turn the rear window
defogger on or off. The rear window
defogger stays on for about
10 minutes, before turning off. The
defogger also turns off when the
engine is turned off. Do not drive the
vehicle until all the windows are
clear.
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.
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.

Climate Controls 8-9
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
adjusting the temperature, fan
speed, and the air delivery mode.
The system may also supply cooler
air to the side of the vehicle facing
the sun. The recirculation mode will
also be used as needed to maintain
cool outlet temperatures.Rear Climate Control System (Rear Climate
Control Only)
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
For vehicles with the rear climate
control system, the controls are
located on the rear of the center
console. The system can also be
controlled with the front controls.Press the REAR button on the front
climate control system to turn the
rear climate control system on or
off. An indicator comes on when the
rear system is on. The system also
turns on if any of the rear controls
are adjusted.
Mimic Mode:
This mode matches
the rear climate control to the front
climate control settings. It comes on
when REAR is pressed.

9-32 Driving and Operating
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase vehicle speed. When you
take your foot off the pedal, the
vehicle will slow down to the
previously set cruise speed.
Using Cruise Control on Hills
How well the cruise control will work
on hills depends upon the vehicle
speed, load, and the steepness of
the hills. When going up steep hills,
you might have to step on the
accelerator pedal to maintain the
vehicle speed. When going
downhill, you might have to brake or
shift to a lower gear to keep the
vehicle speed down. When the
brakes are applied the cruise control
is disengaged.Ending Cruise Control
There are three ways to end cruise
control:
.Step lightly on the brake pedal.
.Press the[button.
.Press theTbutton.
Erasing Speed Memory
The cruise control set speed
memory is erased when the cruise
control or the ignition is turned off.
Object Detection
Systems
Ultrasonic Parking Assist
For vehicles with the Ultrasonic
Rear Parking Assist (URPA) system,
it operates at speeds less than
8 km/h (5 mph), and assists the
driver with parking and avoiding
objects while in R (Reverse). The
sensors on the rear bumper are
used to detect the distance to an
object up to 2.5 m (8 ft) behind the
vehicle, and at least 25.4 cm (10 in)
off the ground.

Driving and Operating 9-33
{WARNING
The Ultrasonic Rear Parking
Assist (URPA) system does not
replace driver vision. It cannot
detect:
.objects that are below the
bumper, underneath the
vehicle, or if they are too
close or far from the vehicle
.children, pedestrians,
bicyclists, or pets.
If you do not use proper care
before and while backing; vehicle
damage, injury, or death could
occur. Even with URPA, always
check behind the vehicle before
backing up. While backing, be
sure to look for objects and check
the vehicle's mirrors.
How the System Works
URPA comes on automatically when
the shift lever is moved into
R (Reverse). A single tone sounds
to indicate the system is working.
URPA operates only at speeds less
than 5 mph (8 km/h).
An obstacle is indicated by audible
beeps. The interval between the
beeps becomes shorter as the
vehicle gets closer to the obstacle.
When the distance is less than
30 cm (12 in) the beeps are
continuous.
To be detected, objects must be at
least 25.4 cm (10 in) off the ground
and below liftgate level. Objects
must also be within 2.5 m (8 ft) from
the rear bumper. This distance may
be less during warmer or humid
weather. The system can be disabled through
the Driver Information Center (DIC).
See
“Park Assist” underVehicle
Personalization (With DIC Buttons)
on page 5‑44for more information.
When the System Does Not
Seem to Work Properly
If the URPA system does not
activate due to a temporary
condition, the message PARK
ASSIST OFF displays on the DIC
when the shift lever is moved into
R (Reverse). This may occur under
the following conditions:
.The driver disables the system.
.The ultrasonic sensors are not
clean. Keep the vehicle's rear
bumper free of mud, dirt, snow,
ice and slush. For cleaning
instructions, see Exterior Care
on page 10‑85.

10-12 Vehicle Care
Change the fluid at the intervals
listed inScheduled Maintenanceon
page 11‑2, and be sure to use the
transmission fluid listed in
Recommended Fluids and
Lubricants on page 11‑8.
Notice: Use of the incorrect
automatic transmission fluid may
damage the vehicle, and the
damages may not be covered by
the vehicle's warranty. Always
use the automatic transmission
fluid listed in Recommended
Fluids and Lubricants
on
page 11‑8.
The transmission fluid will not reach
the end of the dipstick unless the
transmission is at operating
temperature. If you need to check
the transmission fluid level, please
take the vehicle to your dealer/
retailer.
Engine Air Cleaner/Filter
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the
Maintenance IIintervals and replace
it at the first oil change after each
80 000 km (50,000 mile) interval.
See Scheduled Maintenance
on
page 11‑2for more information.
If driving in dusty/dirty conditions,
inspect the filter at each engine oil
change.
See Engine Compartment Overview
on page 10‑6for the location of the
engine air cleaner/filter.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter,
remove the filter from the vehicle
and lightly shake the filter (away
from vehicle) to release loose dust
and dirt. If the filter remains caked
with dirt, a new filter is required. To inspect or replace the engine air
cleaner/filter, do the following:
1. Remove the engine cover. See
Engine Cover on page 10‑7.
A. Ventilation Tube
B. Sensor
2. Disconnect the cover fitting from the ventilation tube (A).
3. Disconnect the wiring harness connector from the sensor (B).