service message GMC ACADIA 2018 Owner's Guide

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
326 Vehicle Care
.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 0330. .
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 pressure condition. See
your dealer for service if the TPMS
malfunction light and DIC message
come on and stay on.
Tire Fill Alert (If Equipped)
This feature provides visual and
audible alerts outside the vehicle to
help when inflating an underinflated
tire to the recommended cold tire
pressure.
When the low tire pressure warning
light comes on:
1. Park the vehicle in a safe, level place.
2. Set the parking brake firmly.
3. Place the vehicle in P (Park).
4. Add air to the tire that is underinflated. The turn signal
lamp will flash. When the recommended
pressure is reached, the horn
sounds once and the turn
signal lamp will stop flashing
and briefly turn solid.
Repeat these steps for all
underinflated tires that have
illuminated the low tire pressure
warning light.
If the tire is overinflated by more
than 35 kPa (5 psi), the horn will
sound multiple times and the turn
signal lamp will continue to flash for
eight seconds after filling stops. To
release and correct the pressure,
while the turn signal lamp is still
flashing, briefly press the center of
the valve stem. When the
recommended pressure is reached,
the horn sounds once.
If the turn signal lamp does not flash
within 15 seconds after starting to
inflate the tire, the tire fill alert has
not been activated or is not working.
If the hazard warning flashers are
on, the tire fill alert visual feedback
will not work properly.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Vehicle Care 327
The TPMS will not activate the tire
fill alert properly under the following
conditions:
.There is interference from an
external device or transmitter.
. The air pressure from the
inflation device is not sufficient
to inflate the tire.
. There is a malfunction in
the TPMS.
. There is a malfunction in the
horn or turn signal lamps.
. The identification code of the
TPMS sensor is not registered to
the system.
. The battery of the TPMS sensor
is low.
If the tire fill alert does not operate
due to TPMS interference, move the
vehicle about 1 m (3 ft) back or
forward and try again. If the tire fill
alert feature is not working, use a
tire pressure gauge.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
vehicle’s 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
tire. 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.
The TPMS sensor matching
process is:
1. Set the parking brake.
2. Place the vehicle in Service Mode. See Ignition Positions
0 221.
3. Make sure the Tire Pressure info page option is turned on.
The info pages on the DIC can
be turned on and off through
the Options menu.
See Driver Information Center
(DIC) (Base and Midlevel)
0 145 orDriver Information
Center (DIC) (Uplevel) 0148.
4. Use the DIC controls on the right side of the steering wheel
to scroll to the Tire Pressure
screen under the DIC
info page.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Service and Maintenance 369
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil 0286.
Once a Month
. Check the tire inflation
pressures. See Tire Pressure
0 321.
. Inspect the tires for wear. See
Tire Inspection 0328.
. Check the windshield washer
fluid level. See Washer Fluid
0 296.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and filter must be changed at least once
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System 0288.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0328.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0286 and
Engine Oil Life System 0288.
. Check engine coolant level. See
Cooling System 0291.
. Check windshield washer fluid
level. See Washer Fluid 0296. .
Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0358. Replace worn or
damaged wiper blades. See
Wiper Blade Replacement
0 301.
. Check tire inflation pressures.
See Tire Pressure 0321.
. Inspect tire wear. See Tire
Inspection 0328.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 290.
. Inspect brake system. See
Exterior Care 0358.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0358.
. Check restraint system
components. See Safety System
Check 077.
. Visually inspect fuel system for
damage or leaks.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
OnStar 403
3. Say the entire number withoutpausing, including a “1”and the
area code. System responds:
“OK, calling.”
Calling 911 Emergency
1. Press=. System responds:
“OnStar ready.”
2. Say “Call.”System responds:
“Call. Please say the name or
number to call.”
3. Say “911”without pausing.
System responds: “911.”
4. Say “Call.”System responds:
“OK, dialing 911.”
Retrieve My Number
1. Press=. System responds:
“OnStar ready.”
2. Say “My number.” System
responds: “Your OnStar
Hands-Free Calling number is,”
then says the number.
End a Call
Press=. System responds: “Call
ended.”
Verify Minutes and Expiration
Press=and say “Minutes” then
“Verify” to check how many minutes
remain and their expiration date.
Diagnostics
By monitoring and reporting on the
vehicle’s key systems, OnStar
Advanced Diagnostics provides a
way to keep up on maintenance.
Capabilities vary by model. See
www.onstar.com for details and
system limitations. Message and
data rates may apply. Advanced
Diagnostics requires an active
OnStar paid service plan, e-mail
address on file, and enrollment in
Advanced Diagnostics.
Includes:
. Diagnostic Alerts: Set
preferences to receive real-time
e-mails, texts, or monthly reports
of the vehicle’s health. Or press
Qto have an Advisor initiate a
remote diagnostic report. .
Proactive Alerts: Receive a
real-time e-mail or text message
regarding potential issues with
key vehicle components, such
as the battery, fuel system,
or starter system. Alerts for
potential issues appear on the
infotainment display. Proactive
Alerts are designed to help
predict specific types of issues
based on information collected
from the vehicle. Other factors
may affect vehicle performance.
Not all issues will deliver alerts.
In some cases, a dealer service
check may be required to
confirm the accuracy of the
alerts.
. Dealer Maintenance Notification:
Have the vehicle notify your
preferred dealer when it is time
for maintenance. Your dealer will
then contact you to set up an
appointment.
To begin, pressQto speak to an
Advisor, or see www.onstar.com.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
404 OnStar
OnStar Additional
Information
OnStar Smart Driver
OnStar Smart Driver provides
information about driving behavior to
help maximize overall vehicle
performance, reduce wear and tear,
and enhance fuel efficiency. An
Insurance Discounts Eligibility
feature is also offered within OnStar
Smart Driver. See www.onstar.com
for details regarding vehicle
eligibility and system limitations.
OnStar, General Motors, and their
affiliates are not insurance
providers. Obtain insurance only
from licensed insurance providers.
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase. Press
Qto set up an account.
. With the OnStar Basic Plan,
every 60 days. .
After change in ownership and
at 90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar services if
the vehicle is disposed of, sold,
transferred, or if the lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Advanced Vehicle Diagnostics,
Remote Services, Roadside
Assistance, Turn-by-Turn
Navigation, and Hands-Free Calling
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar User Terms,
Privacy Statement, and Software
Terms:
.
Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).
. Call TTY 1-877-248-2080.
. Press
Qto speak with an
Advisor.
OnStar services cannot work unless
the vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area. The wireless service
provider must also have coverage,
network capacity, reception, and
technology compatible with OnStar

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
406 OnStar
Global Positioning
System (GPS)
.Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels and
underpasses; or in an area with
very dense trees. If GPS signals
are not available, the OnStar
system should still operate to
call OnStar. However, OnStar
could have difficulty identifying
the exact location.
. In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.
A temporary loss of GPS can cause
loss of the ability to send a
Turn-by-Turn Navigation route. The
Advisor may give a verbal route or
may ask for a call back after the
vehicle is driven into an open area.
Cellular and GPS Antennas
Cellular reception is required for
OnStar to send remote signals to
the vehicle. Do not place items over or near the antenna to prevent
blocking cellular and GPS signal
reception.
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Press
Qto try the
call again or try again after driving a
few miles into another cellular area.
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not operate if the battery is
discharged or disconnected.
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment 0278. Added electrical equipment may interfere with the
operation of the OnStar system and
cause it to not operate.
Vehicle Software Updates
OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,
security, or the operation of the
vehicle or the vehicle systems.
Software updates or changes may
affect or erase data or settings that
are stored in the vehicle, such as
OnStar Hands-Free Calling name
tags, saved navigation destinations,
or pre-set radio stations. Neither
OnStar nor GM is responsible for
any affected or erased data or
settings. These updates or changes
may also collect personal
information. Such collection is
described in the OnStar privacy
statement or separately disclosed at
the time of installation. These
updates or changes may also cause
a system to automatically
communicate with GM servers to
collect information about vehicle

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
416 Index
Lights (cont'd)Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 139
StabiliTrak OFF . . . . . . . . . . . . . . . 141
Tire Pressure . . . . . . . . . . . . . . . . . 142
Tow/Haul Mode . . . . . . . . . . . . . . . 140
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 142
Traction Off . . . . . . . . . . . . . . . . . . . 141
Locks Automatic Door . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . 40
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Lockout Protection . . . . . . . . . . . . . . 41
Power Door . . . . . . . . . . . . . . . . . . . . . 40
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Loss of Control . . . . . . . . . . . . . . . . . 209
Low Fuel Warning Light . . . . 143, 144
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 98
Lumbar Adjustment . . . . . . . . . . . . . . 60 Front Seats . . . . . . . . . . . . . . . . . . . . . 60
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 379 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 374
Maintenance Schedule . . . . . . . . . 369 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 377
Malfunction Indicator Lamp . . . . . 136
Manual Mode . . . . . . . . . . . . . . . . . . . 231
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 62
Messages Engine Power . . . . . . . . . . . . . . . . 151
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 151
Vehicle Speed . . . . . . . . . . . . . . . . 152
Mirrors Automatic Dimming . . . . . . . . . . . . . 50
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 51
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 49
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 50
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 50
Manual Rearview . . . . . . . . . . . . . . . 51
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Tilt in Reverse . . . . . . . . . . . . . . . . . . 50
Mirrors, Interior Rearview . . . . . . . . 51
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Driver Control . . . . . . . . . . . . . . . . . 238
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 323 Multi-band Antenna . . . . . . . . . . . . . 181
N
Navigation
OnStar . . . . . . . . . . . . . . . . . . . . . . . 400
New Vehicle Break-In . . . . . . . . . . . 221
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 131 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 209 Driving . . . . . . . . . . . . . . . . . . . . . . . . 209
Recovery . . . . . . . . . . . . . . . . . . . . . 208
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 286
Engine Oil Life System . . . . . . . 288
Pressure Light . . . . . . . . . . . . . . . . 143
Older Children, Restraints . . . . . . . 91
Online Owner Center . . . . . . . . . . . 387
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 397
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 404
OnStar Connections . . . . . . . . . . . . 401
OnStar Diagnostics . . . . . . . . . . . . . 403
OnStar Emergency . . . . . . . . . . . . . 399
OnStar Navigation . . . . . . . . . . . . . . 400
OnStar Overview . . . . . . . . . . . . . . . 398
OnStar Security . . . . . . . . . . . . . . . . 400