Page 232 of 339

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Vehicle Care 231
Headlamp Aiming
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement
Bulbs 0232.
For any bulb-changing procedure
not listed in this section, contact
your dealer.
High Intensity Discharge
(HID) Lighting
{Warning
The High Intensity Discharge
(HID) lighting system operates at
a very high voltage. If you try to
service any of the system
components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.
After an HID headlamp bulb has
been replaced, the beam might be a
slightly different shade than it was
originally. This is normal.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
License Plate Lamp
To replace one of these bulbs: 1. Remove the two push pins holding each of the license
plate lamps to the liftgate trim
by unscrewing them.
2. Turn and pull the license platelamp forward through the
liftgate trim opening.
Page 235 of 339
GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
234 Vehicle Care
Acadia with HID Lighting
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
A/C CLTCH A/C clutch ABS MTR ABS system motor
AFS Adaptive forward lighting system
AIRBAG Airbag system
AUX POWER Auxiliary power AUX
VAC PUMP Auxiliary
vacuum pump
AWD AWD system
BATT 1 Battery 1
BATT 2 Battery 2
BATT 3 Battery 3 CIGAR
LIGHTER Cigarette lighter
ECM 1 Engine control module 1
ECM/
FPM IGN Engine control
module/Fuel pump
control module/
Ignition
EMISSION 1 Emission 1
EMISSION 2 Emission 2
Page 238 of 339
GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Vehicle Care 237
Acadia with Halogen Lighting
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
A/C CLTCH A/C clutch ABS MTR ABS system motor
AIRBAG Airbag system
AUX POWER Auxiliary power AUX
VAC PUMP Auxiliary
vacuum pump
AWD AWD system
BATT 1 Battery 1
BATT 2 Battery 2
BATT 3 Battery 3 CIGAR
LIGHTER Cigarette lighter
ECM 1 Engine control module 1
ECM/
FPM IGN Engine control
module/Fuel pump
power module/
Ignition
EMISSION 1 Emission 1
EMISSION 2 Emission 2
EVEN COILS Injector coils –even
Page 241 of 339

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
240 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
# GMC Non-HID = low-beam
)GMC Non-HID =
high shutter
) )Chevy = fog lamps
) ) )Buick China = rear
fog lamp
AIRBAG Airbag AMP Amplifier
BCK
UP/STOP Reverse lamps/
Stoplamps
BCM Body control module
CNSTR VENT Canister vent
CTSY Courtesy lamps
DR LCK Door locks DRL/
LO BEAM Daytime running
lamps relay/
Low-beam
headlamps relay Fuses Usage
DSPLY Display
FRT WSW Front windshield washer
HTD/
COOL SEAT Heated/Cooling
seats
HVAC HVAC
INADV PWR INT LAMPS Inadvertent power/
Interior light pipe
lamps
INFOTMNT/ MSM Infotainment/
Memory seat
module
LT TRN SIG Left turn signal
OBS
DET/URS Rear park assist/
Side blind zone
alert/Forward
collision alert/
Universal remote
system
PDM Power mirrors/ Liftgate release
PWR MODE Power mode PWR MIR Power mirrors RDO Radio Fuses Usage
REAR WPR Rear wiper
RT TRN SIG Right turn signal
STR WHL ILLUM Steering wheel
illumination
USB CHRG USB charging
Page 242 of 339
GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Vehicle Care 241
Relay SideRelays Usage
LT/
PWR/SEAT Left power seat
relay
RT/
PWR/SEAT Right power seat
relay
PWR/WNDW Power windows relay
PWR/
COLUMN Power steering
column relay
L/GATE Liftgate relay
LCK Power lock relay
REAR/WSW Rear window washer relay
UNLCK Power unlock relay
DRL/
LO BEAM Daytime running
lamps relay/
Low-beam
headlamps relay
LT/UNLCK Left unlock relay DRL/
LO BEAM Daytime running
lamps/Low-beam
headlamps relay (if
equipped) Relays Usage
HI SHUTTER Hi shutter (GMC with halogen
lighting)
FRT/WSW Front windshield washer relay
Page 249 of 339

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
248 Vehicle Care
Light Truck (LT-Metric) Tire:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.
Maximum Inflation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall.
Maximum Load Rating
:The
load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Maximum Loaded Vehicle
Weight
:The sum of curb
weight, accessory weight,
vehicle capacity weight, and
production options weight. Normal Occupant Weight
:The
number of occupants a vehicle
is designed to seat multiplied by
68 kg (150 lb). See Vehicle Load
Limits 0167.
Occupant Distribution
:
Designated seating positions.
Outward Facing Sidewall
:The
side of an asymmetrical tire that
has a particular side that faces
outward when mounted on a
vehicle. The side of the tire that
contains a whitewall, bears
white lettering, or bears
manufacturer, brand, and/or
model name molding that is
higher or deeper than the same
moldings on the other sidewall
of the tire.
Passenger (P-Metric) Tire
:A
tire used on passenger cars and
some light duty trucks and
multipurpose vehicles.
Recommended Inflation
Pressure
:Vehicle
manufacturer's recommended tire inflation pressure as shown
on the tire placard. See
Tire
Pressure 0249 andVehicle
Load Limits 0167.
Radial Ply Tire
:A pneumatic
tire in which the ply cords that
extend to the beads are laid at
90 degrees to the centerline of
the tread.
Rim
:A metal support for a tire
and upon which the tire beads
are seated.
Sidewall
:The portion of a tire
between the tread and the bead.
Speed Rating
:An
alphanumeric code assigned to
a tire indicating the maximum
speed at which a tire can
operate.
Traction
:The friction between
the tire and the road surface.
The amount of grip provided.
Tread
:The portion of a tire that
comes into contact with
the road.
Page 253 of 339

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
252 Vehicle Care
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the tire loading
information label. SeeVehicle Load
Limits 0167.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message come on at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. Using the DIC, tire
pressure levels can be viewed. For
additional information and details
about the DIC operation and
displays see Driver Information
Center (DIC) 0116 and Tire
Messages 0130. The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure.
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See
Vehicle Load
Limits 0167, for an example of the
Tire and Loading Information label
and its location. Also see Tire
Pressure 0249.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
0 254, Tire Rotation 0255 and
Tires 0242.
Caution
Tire sealant materials are not all
the same. A non-approved tire
sealant could damage the TPMS
sensors. TPMS sensor damage
caused by using an incorrect tire
sealant is not covered by the
vehicle warranty. Always use only
the GM approved tire sealant
available through your dealer or
included in the vehicle.
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 flashes for
about one minute and then stays on
for the remainder of the ignition
cycle. A DIC warning message
displays. The malfunction light and
DIC warning message come on at
each ignition cycle until the problem
Page 254 of 339

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Vehicle Care 253
is corrected. Some of the conditions
that can cause these 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 malfunction
light and DIC message should
go off after the road tire is
replaced and the sensor
matching process is performed
successfully. See "TPMS Sensor
Matching Process" later in this
section.
. The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process. See
"TPMS Sensor Matching
Process" later in this section.
. One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the TPMS sensors are installed and
the sensor matching process is
performed successfully. See
your dealer for service.
. Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires 0256.
. 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
properly, it cannot detect or signal a
low tire condition. See your dealer
for service if the TPMS malfunction
light and DIC message comes on
and stays on.
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the tires or replacing one or more of the
TPMS sensors. The TPMS sensor
matching process should also be
performed after replacing a spare
tire with a road tire containing the
TPMS sensor. The malfunction light
and the DIC message should go off
at the next ignition cycle. The
sensors are matched to the tire/
wheel positions, using a TPMS
relearn tool, in the following order:
driver side front tire, passenger side
front tire, passenger side rear tire,
and driver side rear. See your
dealer for service or to purchase a
relearn tool. A TPMS relearn tool
can also be purchased. See Tire
Pressure Monitor Sensor Activation
Tool at
www.gmtoolsandequipment.com or
call 1-800-GM TOOLS
(1-800-468-6657).
There are two minutes to match the
first tire/wheel position, and
five minutes overall to match all four
tire/wheel positions. If it takes
longer, the matching process stops
and must be restarted.