2018 GMC SAVANA turn signal bulb

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Lighting 123
Hazard Warning Flashers
|:Press this button 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.
When the hazard warning flashers
are on, the vehicle's turn signals will
not work.
Turn and Lane-Change
Signals
G: An arrow on the instrument
cluster flashes in the direction of the
turn or lane change.
To signal a turn, move the lever all
the way up or down.
To signal a lane change, raise or
lower the lever until the arrow starts
to flash. The turn signal
automatically flashes three times
and if the Tow/Haul Mode is active it
flashes six times. Holding the turn
signal lever for more than
one second causes the turn signals
to flash continually until the lever is
released.
The lever returns to its starting
position when released. If after signaling a turn or lane
change the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Have any burned out bulbs
replaced. If a bulb is not burned out,
check the fuse. See
Fuses and
Circuit Breakers 0246.
Turn Signal On Chime
If the turn signal is left on for more
than 1.2 km (0.75 mi), a chime
sounds at each flash of the turn
signal and the message TURN
SIGNAL ON also appears in the
Driver Information Center (DIC). To
turn off the chime and message,
move the turn signal lever to the off
position.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Driving and Operating 201
longer and not as responsive as the
vehicle itself. Get acquainted with
the handling and braking of the rig
before setting out for the open road.
The structure, tires, and brakes of
the trailer must be rated to carry the
load. Inadequate trailer equipment
can cause the combination to
operate in an unexpected or unsafe
manner.
Before starting, check all trailer hitch
parts and attachments, safety
chains, electrical connectors, lamps,
tires, and mirrors. Get familiar with
the handling and braking of the rig.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid heavy
braking and sudden turns.
Passing
More passing distance is needed
when towing a trailer. The
combination will not accelerate as
quickly and is longer so it isnecessary to go much farther
beyond the passed vehicle before
returning to the lane.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move that hand to
the left. To move the trailer to the
right, move your hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making Turns
Caution
Making very sharp turns while
trailering could cause the trailer to
come in contact with the vehicle.
The vehicle could be damaged.
Avoid making very sharp turns
while trailering.
When turning with a trailer, make
wider turns than normal. Do this so
the trailer will not strike soft
shoulders, curbs, road signs, trees, or other objects. Avoid jerky or
sudden maneuvers. Signal well in
advance.
If the trailer turn signal bulbs burn
out, the arrows on the instrument
cluster will still flash for turns. It is
important to check occasionally to
be sure the trailer bulbs are still
working.
Driving on Grades
Reduce speed and shift to a lower
gear
before starting down a long or
steep downgrade. If the
transmission is not shifted down, the
brakes might get hot and no longer
work well.
Vehicles can tow in D (Drive). Shift
the transmission to a lower gear if
the transmission shifts too often
under heavy loads and/or hilly
conditions.
The Tow/Haul Mode may be used if
the transmission shifts too often.
See Tow/Haul Mode 0184.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 211
Vehicle Care
General Information
General Information . . . . . . . . . . 212
California Proposition65 Warning . . . . . . . . . . . . . . . . . 212
California Perchlorate Materials Requirements . . . . . 213
Accessories and Modifications . . . . . . . . . . . . . . . . 213
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 213
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 214
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 215
Engine Oil . . . . . . . . . . . . . . . . . . . . 218
Engine Oil Life System . . . . . . . 220
Automatic Transmission Fluid (6-Speed Transmission) . . . . . 221
Automatic Transmission Fluid (8-Speed Transmission) . . . . . 224
Engine Air Cleaner/Filter . . . . . . 225
Cooling System . . . . . . . . . . . . . . 226
Engine Overheating . . . . . . . . . . 231
Engine Fan . . . . . . . . . . . . . . . . . . . 232
Power Steering Fluid . . . . . . . . . 233
Washer Fluid . . . . . . . . . . . . . . . . . 233 Brakes . . . . . . . . . . . . . . . . . . . . . . . 234
Brake Fluid . . . . . . . . . . . . . . . . . . . 235
Battery - North America . . . . . . 236
Rear Axle . . . . . . . . . . . . . . . . . . . . 237
Noise Control System . . . . . . . . 238
Starter Switch Check . . . . . . . . . 239
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 239
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 240
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 240
Wiper Blade Replacement . . . . 240
Windshield Replacement . . . . . 241
Gas Strut(s) . . . . . . . . . . . . . . . . . . 241
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 242
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 243
Halogen Bulbs . . . . . . . . . . . . . . . . 243
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . 243
Taillamps . . . . . . . . . . . . . . . . . . . . . 243
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . 245
License Plate Lamp . . . . . . . . . . 245
Electrical System
Electrical System Overload . . . 246
Fuses and Circuit Breakers . . . 246
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Console Fuse Block . . . . 251
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 253
All-Season Tires . . . . . . . . . . . . . . 253
Winter Tires . . . . . . . . . . . . . . . . . . 254
All-Terrain Tires . . . . . . . . . . . . . . . 254
Tire Sidewall Labeling . . . . . . . . 254
Tire Designations . . . . . . . . . . . . . 257
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 258
Tire Pressure . . . . . . . . . . . . . . . . . 261
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 262
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 263
Tire Inspection . . . . . . . . . . . . . . . . 266
Tire Rotation . . . . . . . . . . . . . . . . . 266
Dual Tire Rotation . . . . . . . . . . . . 268
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 268
Buying New Tires . . . . . . . . . . . . . 269
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 271

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 243
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing
procedure not listed in this section,
contact your dealer.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
Front Turn Signal,
Sidemarker, and Parking
Lamps
1. Front Parking and TurnSignal Lamp
2. Front Sidemarker Lamp
To replace the front turn signal,
sidemarker, and/or parking lamp
bulb(s):
1. Use a small tool to unlatch the outboard clip on the lamp by
pushing inboard and prying the
lamp assembly forward.
2. Remove the lamp from the grille.
3. Turn the bulb socket counterclockwise one-quarter
turn and remove it from the
lamp assembly.
4. Remove the bulb from the socket by pulling it straight out.
5. Replace the bulb.
6. Turn the bulb socket clockwise to reinstall it in the lamp
assembly.
7. Reinstall the lamp assembly into the grille until the outboard
clip snaps into place.
Taillamps
To replace a taillamp/turn signal
lamp or back-up lamp bulb:

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
244 Vehicle Care
1. Remove the two inboard nutsfrom the inside of the taillamp
assembly.
2. The third nut (3) is under theapplique piece (2) above the
lamp. Remove the two inboard
applique nuts. Pull the
applique (2) straight rearward
slightly to clear the studs. Then
rotate the applique (2) just far
enough to gain access to the
outer push pins (1).
3. Carefully disconnect the push pins (1) from the applique
bracket.
4. Remove the third nut (3) from the upper outboard side of
the lamp.
5. Remove the taillamp assembly from the vehicle.
6. Remove the taillamp/turn signal
lamp (1) or back-up lamp (2)
bulb socket by turning it
counterclockwise one-quarter
turn and pulling it out of the
lamp assembly.
7. Remove the bulb by pulling it straight out.
8. Push the new bulb into the socket.
9. Reinstall the bulb socket by turning it clockwise into the
lamp assembly.
10. Reverse Steps 1–5 to reinstall the taillamp assembly and
applique.

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
Index 345
Driving (cont'd)Off-Road Recovery . . . . . . . . . . . 163
Vehicle Load Limits . . . . . . . . . . . 167
Wet Roads . . . . . . . . . . . . . . . . . . . 164
Winter . . . . . . . . . . . . . . . . . . . . . . . . 165
Dual Tire Rotation . . . . . . . . . . . . . . . . . . . . . . 268
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 197
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 210
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Console Fuse Block . . . . 251
Fuses and Circuit Breakers . . . 246
Overload . . . . . . . . . . . . . . . . . . . . . 246
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 331
Engine Air Cleaner/Filter . . . . . . . . . . . . . 225
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 103
Compartment Overview . . . . . . . 215
Coolant Heater . . . . . . . . . . . . . . . 175
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 100 Engine (cont'd)
Cooling System . . . . . . . . . . . . . . . 226
Drive Belt Routing . . . . . . . . . . . . 315
Exhaust . . . . . . . . . . . . . . . . . . . . . . 179
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Oil Life System . . . . . . . . . . . . . . . 220
Oil Pressure Gauge . . . . . . . . . . . . 99
Oil Pressure Light . . . . . . . . . . . . 108
Overheating . . . . . . . . . . . . . . . . . . 231
Power Messages . . . . . . . . . . . . . .114
Running While Parked . . . . . . . . 179
Starting . . . . . . . . . . . . . . . . . . . . . . . 173
Enhanced Technology Glass . . . . 39
Entry/Exit Lighting . . . . . . . . . . . . . . 125
Equipment, Towing . . . . . . . . . . . . . 207
Event Data Recorders . . . . . . . . . . 328
Extender, Seat Belt . . . . . . . . . . . . . . 55
Exterior Lamp Controls . . . . . . . . . 120
Exterior Lamps Off Reminder . . . 121
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 125
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 232
Fast Idle System . . . . . . . . . . . . . . . . 174 Filter,
Engine Air Cleaner . . . . . . . . . . . 225
Fixed Mast Antenna . . . . . . . . . . . . 136
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 121
Flashers, Hazard Warning . . . . . . 123
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 274 Changing . . . . . . . . . . . . . . . . . . . . . 276
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 298
Fluid AutomaticTransmission . . . . . . . . . . . 221, 224
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 235
Power Steering . . . . . . . . . . . . . . . 233
Washer . . . . . . . . . . . . . . . . . . . . . . . 233
Folding Mirrors . . . . . . . . . . . . . . . . . . 37
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 326
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Front Storage . . . . . . . . . . . . . . . . . . . . 87
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 243
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Additives . . . . . . . . . . . . . . . . . . . . . 196
Economy Driving . . . . . . . . . . . . . . . 23

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
350 Index
SecurityLight . . . . . . . . . . . . . . . . . . . . . . . . . . 108
OnStar . . . . . . . . . . . . . . . . . . . . . . . 332
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service . . . . . . . . . . . . . . . . . . . . . . . . . 159 Accessories andModifications . . . . . . . . . . . . . . . . 213
Climate Control System . . . . . . . 154
Doing Your Own Work . . . . . . . . 213
Maintenance Records . . . . . . . . .311
Maintenance, General Information . . . . . . . . . . . . . . . . . . 299
Parts Identification Label . . . . . 312
Publications Ordering Information . . . . . . . . . . . . . . . . . . 325
Scheduling Appointments . . . . . 322
Services Special Application . . . . . . . . . . . 305
Servicing the Airbag . . . . . . . . . . . . . 66
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 239
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 177
Out of Park . . . . . . . . . . . . . . . . . . . 178
Side Blind Zone Alert (SBZA) . . . 193
Side Door . . . . . . . . . . . . . . . . . . . . . . . 32 Sidemarker
Bulb Replacement . . . . . . . . . . . . 243
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 123
Sliding Door . . . . . . . . . . . . . . . . . . . . . 33
Special Application Services . . . . 305
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 313
Speedometer . . . . . . . . . . . . . . . . . . . . 98
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 106
Start Assist, Hill . . . . . . . . . . . . . . . . . 186
Start Vehicle, Remote . . . . . . . . . . . 28
Starter Switch Check . . . . . . . . . . . 239
Starting the Engine . . . . . . . . . . . . . 173
Steering . . . . . . . . . . . . . . . . . . . . . . . . 162 Fluid, Power . . . . . . . . . . . . . . . . . . 233
Wheel Adjustment . . . . . . . . . . . . . . 89
Wheel Controls . . . . . . . . . . . . . . . . . 90
Storage Areas Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Storage Compartments . . . . . . . . . . 87
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 166
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 40
Swing-out Windows . . . . . . . . . . . . . . 39 Switches
Airbag On-Off . . . . . . . . . . . . . . . . . . . 63
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Infotainment . . . . . . . . . . . . . 127, 329
Noise Control . . . . . . . . . . . . . . . . . 238
T
Taillamps . . . . . . . . . . . . . . . . . . . . . . . 243
Text Telephone (TTY) Users . . . . 319
Theft-Deterrent Systems . . . . . . . . . 34Immobilizer . . . . . . . . . . . . . . . . . . . . . 34
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 All-Season . . . . . . . . . . . . . . . . . . . . 253
All-Terrain . . . . . . . . . . . . . . . . . . . . 254
Buying New Tires . . . . . . . . . . . . . 269
Chains . . . . . . . . . . . . . . . . . . . . . . . . 274
Changing . . . . . . . . . . . . . . . . . . . . . 276
Designations . . . . . . . . . . . . . . . . . 257
Different Size . . . . . . . . . . . . . . . . . 271
Dual Rotation . . . . . . . . . . . . . . . . . 268
Full-Size Spare . . . . . . . . . . . . . . . 283
If a Tire Goes Flat . . . . . . . . . . . . 274
Inspection . . . . . . . . . . . . . . . . . . . . 266
Pressure . . . . . . . . . . . . . . . . . . . . . . 261
Pressure Light . . . . . . . . . . . . . . . . 107
Pressure Monitor Operation . . 263