ignition GMC SAVANA 2018 Repair Manual

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
264 Vehicle Care
each ignition cycle until the tires are
inflated to the correct inflation
pressure. If the vehicle has DIC
buttons, tire pressure levels can be
viewed. For additional information
and details about the DIC operation
and displays, seeDriver Information
Center (DIC) 0109.
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 0261. The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See
Tire Inspection
0 266, Tire Rotation 0266 andTires
0 253.
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 pressure warning light
flashes for about one minute and then stays on for the remainder of
the ignition cycle. A DIC warning
message also displays. The
malfunction light and DIC warning
message come on at each ignition
cycle until the problem 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. The
spare tire does not have a
TPMS sensor. The malfunction
light and the 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.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 265
.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 0269.
. 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.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. Also,
the TPMS sensor matching process
should 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.
The TPMS sensor matching
process is:
1. Set the parking brake.
2. Turn the ignition on without starting the vehicle. See
Ignition Positions 0172.
3. Press the Remote Keyless Entry (RKE) transmitter's
Q
andKbuttons at the same
time for approximately
five seconds. The horn sounds
twice to signal the receiver is in
relearn mode and TIRE
LEARNING ACTIVE message
displays on the DIC screen.
If the vehicle does not have
RKE, press the Driver
Information Center (DIC)
vehicle information button until
the PRESS VTO RELEARN
TIRE POSITIONS message

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 285
ground connection you do not
want. You would not be able to
start your vehicle, and the bad
grounding could damage the
electrical systems.
To avoid the possibility of the
vehicles rolling, set the parking
brake firmly on both vehicles
involved in the jump start
procedure. Put an automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking
brake.
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
3. Turn the ignition off on both vehicles. Unplug unnecessary
accessories plugged into the cigarette lighter or the
accessory power outlet. Turn
off the radio and all lamps that
are not needed. This will avoid
sparks and help save both
batteries. And it could save the
radio!
4. Open the hoods and locate the positive (+) and negative (−)
terminal locations of the other
vehicle.
On your van, use the unpainted
radio antenna bracket as a
remote negative (−) terminal.
{Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
(Continued)
Warning (Continued)
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{Warning
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.
5. Check that the jumper cables do not have loose or missing
insulation. If they do, you could
get a shock. The vehicles
could be damaged too.
Before you connect the cables,
here are some basic things you
should know. Positive (+) will
go to positive (+) or to a remote
positive (+) terminal if the
vehicle has one. Negative (−)
will go to an unpainted metal
part or to a remote negative (−)
terminal if the vehicle has one.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 289
Dinghy Towing
Caution
If the vehicle is towed with all four
wheels on the ground, the
drivetrain components could be
damaged. The repairs would not
be covered by the vehicle
warranty. Do not tow the vehicle
with all four wheels on the
ground.
The vehicle should not be towed
with all four wheels on the ground.
Dolly Towing
Rear Towing (Rear Wheels Off the
Ground)
To tow the vehicle from the rear: 1. Attach the dolly to the tow vehicle following the dolly
manufacturer's instructions.
2. Drive the rear wheels onto the dolly.
3. Firmly set the parking brake. See Parking Brake 0185.
4. Put the transmission in P (Park). 5. Secure the vehicle to the dolly
following the manufacturer's
instructions.
6. Use an adequate clamping device designed for towing to
ensure that the front wheels
are locked into the straight
position.
7. Turn the ignition to off.
If the tow vehicle will not be
started or driven for six weeks
or more, remove the battery
cable from the negative
terminal (post) of the battery to
prevent the battery from
draining while towing.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
302 Service and Maintenance
.Check tire inflation pressures.
See Tire Pressure 0261.
. Inspect tire wear. See Tire
Inspection 0266.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 225.
. Inspect brake system. See
Exterior Care 0290.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0290.
. Check restraint system
components. See Safety System
Check 055.
. Visually inspect fuel system for
damage or leaks. .
Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0290.
. Check starter switch. See Starter
Switch Check 0239.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check
0239.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0240.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 240. .
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open is low, service the gas
strut. See Gas Strut(s) 0241.
. Lubricate the steering linkage
(greasable joints). See Normal
and Severe Maintenance
Schedules. For severe
commercial use vehicles, see
Special Application Services
0305.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
332 OnStar
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
Navigation
OnStar navigation requires a
specific OnStar service plan. Press
Qto receive Turn-by-Turn
directions or have them sent to the
vehicle’s navigation screen,
if equipped.
Turn-by-Turn Navigation
1. PressQto connect to an
Advisor.
2. Request directions to be downloaded to the vehicle.
3. Follow the voice-guided commands.
Using Voice Commands
During a Planned Route
Functionality of the Voice Command
button may vary by vehicle and
region. For some vehicles, press
=
to open the OnStar app on the
infotainment display. For other
vehicles press
=as follows.
Cancel Route
1. Press
=. System responds:
“OnStar ready,” then a tone. 2. Say
“Cancel route.” System
responds: “Do you want to
cancel directions?”
3. Say “Yes.”System responds:
“OK, request completed, thank
you, goodbye.”
Route Preview
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Route preview.” System
responds with the next three
maneuvers.
Repeat
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Repeat.” System
responds with the last direction
given, then responds with
“OnStar ready,” then a tone.
Get My Destination
1. Press
=. System responds:
“OnStar ready,” then a tone.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
OnStar 337
services. Service involving location
information about the vehicle cannot
work unless GPS signals are
available, unobstructed, and
compatible with the OnStar
hardware. OnStar services may not
work if the OnStar equipment is not
properly installed or it has not been
properly maintained. If equipment or
software is added, connected,
or modified, OnStar services may
not work. Other problems beyond
the control of OnStar—such as
hills, tall buildings, tunnels, weather,
electrical system design and
architecture of the vehicle, damage
to the vehicle in a crash, or wireless
phone network congestion or
jamming —may prevent service.
See Radio Frequency Statement
0 326.
Services for People with
Disabilities
Advisors provide services to help
with physical disabilities and
medical conditions. Press
Qto help:
. Locate a gas station with an
attendant to pump gas.
. Find a hotel, restaurant, etc.,
that meets accessibility needs.
. Provide directions to the closest
hospital or pharmacy in urgent
situations.
TTY Users
OnStar has the ability to
communicate to deaf,
hard-of-hearing, or speech-impaired
customers while in the vehicle. The
available dealer-installed TTY
system can provide in-vehicle
access to all OnStar services,
except Virtual Advisor and OnStar
Turn-by-Turn Navigation.
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some
OnStar services. The PIN will need
to be changed the first time when
speaking with an Advisor. To change the OnStar PIN, contact an
OnStar Advisor by pressing
Qor
calling 1-888-4ONSTAR.
Warranty
OnStar equipment may be
warranted as part of the vehicle
warranty.
Languages
The vehicle can be programmed to
respond in multiple languages.
Press
Qand ask for an Advisor.
Advisors are available in English,
Spanish, and French. Available
languages may vary by country.
Potential Issues
OnStar cannot perform Remote
Door Unlock or Stolen Vehicle
Assistance after the vehicle has
been off continuously for 10 days
without an ignition cycle. If the
vehicle has not been started for
10 days, OnStar can contact
Roadside Assistance or a locksmith
to help gain access to the vehicle.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Index 343
Automatic (cont'd)Headlamp System . . . . . . . . . . . . 122
Transmission . . . . . . . . . . . . . . . . . 180
Transmission Fluid . . . . . . 221, 224
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 183
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 239
Auxiliary
Devices . . . . . . . . . . . . . . . . . . . . . . . 141
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 136
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 237
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 125
Load Management . . . . . . . . . . . . 125
Power Protection . . . . . . . . . . . . . 125
Battery - North America . . . . 236, 284
Blade Replacement, Wiper . . . . . 240
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . 146
Brake System Warning Light . . . . . . . . 105 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Antilock . . . . . . . . . . . . . . . . . . . . . . . 184
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 186
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Parking . . . . . . . . . . . . . . . . . . . . . . . 185
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 162
Break-In, New Vehicle . . . . . . . . . . 171
Bulb Replacement Center High-MountedStoplamp (CHMSL) . . . . . . . . . 245
Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 243
Halogen Bulbs . . . . . . . . . . . . . . . . 243
Headlamp Aiming . . . . . . . . . . . . . 242
Headlamps . . . . . . . . . . . . . . . . . . . 243
License Plate Lamps . . . . . . . . . 245
Taillamps . . . . . . . . . . . . . . . . . . . . . 243
Buying New Tires . . . . . . . . . . . . . . . 269
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 92
California Fuel Requirements . . . . . . . . . . . 196
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 213 California
Proposition
65 Warning . . . . . . . . . .212, 236, 284,
Back Cover
Camera Rear Vision (RVC) . . . . . . . . . . . . 191
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 313
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 179
Winter Driving . . . . . . . . . . . . . . . . 165
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 87
Cargo Door Relocking . . . . . . . . . . . 30
Caution, Danger, and Warning . . . . 3
CD Player . . . . . . . . . . . . . . . . . . . . . . 136
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . . . 245
Chains, Tire . . . . . . . . . . . . . . . . . . . . 274
Charging System Light . . . . . . . . . 103
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 103
Ignition Transmission Lock . . . 240
Child Restraints Infants and Young Children . . . . . 69

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
346 Index
Fuel (cont'd)Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 199
Filling the Tank . . . . . . . . . . . . . . . 198
Foreign Countries . . . . . . . . . . . . 196
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Low Fuel Warning Light . . . . . . . 108
Requirements, California . . . . . 196
Full-Size Spare Tire . . . . . . . . . . . . 283
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Console Fuse Block . . . . 251
Fuses and Circuit Breakers . . . 246
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 241
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . 100
Engine Oil Pressure . . . . . . . . . . . . 99
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Odometer . . . . . . . . . . . . . . . . . . . . . . . 98
Speedometer . . . . . . . . . . . . . . . . . . . 98
Trip Odometer . . . . . . . . . . . . . . . . . . 98
Voltmeter . . . . . . . . . . . . . . . . . . . . . 100
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . . 96 General Information
Service and Maintenance . . . . . 299
Towing . . . . . . . . . . . . . . . . . . . . . . . . 200
Vehicle Care . . . . . . . . . . . . . . . . . . 212
Glass, Enhanced Technology . . . . 39
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 320
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 243
Hazard Warning Flashers . . . . . . . 123
Head Restraints . . . . . . . . . . . . . . . . . 42
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 242
Automatic . . . . . . . . . . . . . . . . . . . . . 122
Bulb Replacement . . . . . . . . . . . . 243
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 121
Flash-to-Pass . . . . . . . . . . . . . . . . . 121
High-Beam On Light . . . . . . . . . . 109
High/Low Beam Changer . . . . . 121
Heated Mirrors . . . . . . . . . . . . . . . . . . . 37
Heater Engine Coolant . . . . . . . . . . . . . . . 175
Heating . . . . . . . . . . . . . . . . . . . . 154, 156
High-Beam On Light . . . . . . . . . . . . 109
Hill and Mountain Roads . . . . . . . . 165
Hill Start Assist (HSA) . . . . . . . . . . 186 Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 48
HVAC . . . . . . . . . . . . . . . . . . . . . . 154, 156
I
Idle System Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Ignition Positions . . . . . . . . . . . . . . . 172
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 240
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 34
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 69
Infotainment . . . . . . . . . . . . . . . . . . . . 127
Infotainment System . . . . . . . . . . . . 329
Instrument Cluster . . . . . . . . . . . . . . . 97
Interior Rearview Mirrors . . . . . . . . . 37
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 284
K
Keyless EntryRemote (RKE) System . . . . . . . . . 26
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24