2018 CHEVROLET EXPRESS turn signal bulb

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Lighting 125
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 0248.
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.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Driving and Operating 203
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 0185.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Vehicle Care 213
Vehicle Care
General Information
General Information . . . . . . . . . . 214
California Proposition65 Warning . . . . . . . . . . . . . . . . . 214
California Perchlorate Materials Requirements . . . . . 215
Accessories and Modifications . . . . . . . . . . . . . . . . 215
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 215
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 216
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 217
Engine Oil . . . . . . . . . . . . . . . . . . . . 220
Engine Oil Life System . . . . . . . 222
Automatic Transmission Fluid (6-Speed Transmission) . . . . . 223
Automatic Transmission Fluid (8-Speed Transmission) . . . . . 226
Engine Air Cleaner/Filter . . . . . . 227
Cooling System . . . . . . . . . . . . . . 229
Engine Overheating . . . . . . . . . . 233
Engine Fan . . . . . . . . . . . . . . . . . . . 234
Power Steering Fluid . . . . . . . . . 235
Washer Fluid . . . . . . . . . . . . . . . . . 235 Brakes . . . . . . . . . . . . . . . . . . . . . . . 236
Brake Fluid . . . . . . . . . . . . . . . . . . . 237
Battery - North America . . . . . . 238
Rear Axle . . . . . . . . . . . . . . . . . . . . 239
Noise Control System . . . . . . . . 240
Starter Switch Check . . . . . . . . . 241
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 241
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 242
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 242
Wiper Blade Replacement . . . . 242
Gas Strut(s) . . . . . . . . . . . . . . . . . . 243
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 244
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 244
Halogen Bulbs . . . . . . . . . . . . . . . . 244
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . 245
Taillamps . . . . . . . . . . . . . . . . . . . . . 245
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . 246
License Plate Lamp . . . . . . . . . . 247
Electrical System
Electrical System Overload . . . 248 Fuses and Circuit Breakers . . . 248
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 253
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 255
All-Season Tires . . . . . . . . . . . . . . 256
Winter Tires . . . . . . . . . . . . . . . . . . 256
All-Terrain Tires . . . . . . . . . . . . . . . 256
Tire Sidewall Labeling . . . . . . . . 257
Tire Designations . . . . . . . . . . . . . 259
Tire Terminology and Definitions . . . . . . . . . . . . . . . . . . 260
Tire Pressure . . . . . . . . . . . . . . . . . 263
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 264
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 265
Tire Inspection . . . . . . . . . . . . . . . . 268
Tire Rotation . . . . . . . . . . . . . . . . . 268
Dual Tire Rotation . . . . . . . . . . . . 270
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 270
Buying New Tires . . . . . . . . . . . . . 271
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 273
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 273
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 275

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Vehicle Care 245
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:
1. Remove the two inboard nutsfrom the inside of the taillamp
assembly.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
246 Vehicle Care
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 signallamp (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.
Center High-Mounted
Stoplamp (CHMSL)
The Center High-Mounted Stoplamp
(CHMSL) is above the rear doors at
the center of the vehicle.
To replace a bulb:
1. Remove the two screws fromthe CHMSL assembly.
2. Remove the CHMSL assembly.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Index 345
Automatic (cont'd)Transmission . . . . . . . . . . . . . . . . . 182
Transmission Fluid . . . . . . 223, 226
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 185
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 241
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 143
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 138
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 239
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 127
Load Management . . . . . . . . . . . . 127
Power Protection . . . . . . . . . . . . . 127
Battery - North America . . . . 238, 286
Blade Replacement, Wiper . . . . . 242
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . 148
Brake
System Warning Light . . . . . . . . 107
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 236 Antilock . . . . . . . . . . . . . . . . . . . . . . . 186
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 188 Brakes (cont'd)
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Parking . . . . . . . . . . . . . . . . . . . . . . . 187
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 164
Break-In, New Vehicle . . . . . . . . . . 173
Bulb Replacement
Center High-MountedStoplamp (CHMSL) . . . . . . . . . 246
Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 245
Halogen Bulbs . . . . . . . . . . . . . . . . 244
Headlamp Aiming . . . . . . . . . . . . . 244
Headlamps . . . . . . . . . . . . . . . . . . . 244
License Plate Lamps . . . . . . . . . 247
Taillamps . . . . . . . . . . . . . . . . . . . . . 245
Buying New Tires . . . . . . . . . . . . . . . 271
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 93
California Fuel Requirements . . . . . . . . . . . 198
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 215
California Proposition
65 Warning . . . . . . . . . .214, 238, 286, Back CoverCamera
Rear Vision (RVC) . . . . . . . . . . . . 193
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 315
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 181
Winter Driving . . . . . . . . . . . . . . . . 167
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 88
Cargo Door Relocking . . . . . . . . . . . 30
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 138
Center High-Mounted
Stoplamp (CHMSL) . . . . . . . . . . . 246
Chains, Tire . . . . . . . . . . . . . . . . . . . . 276
Charging System Light . . . . . . . . . 104
Check
Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 105
Ignition Transmission Lock . . . 242
Child Restraints Infants and Young Children . . . . . 70
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 75
Older Children . . . . . . . . . . . . . . . . . . 68
Securing . . . . . . . . . . . . . . . . . . . . 82, 84
Systems . . . . . . . . . . . . . . . . . . . . . . . . 72

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Index 347
Driving (cont'd)Wet Roads . . . . . . . . . . . . . . . . . . . 166
Winter . . . . . . . . . . . . . . . . . . . . . . . . 167
Dual Tire
Rotation . . . . . . . . . . . . . . . . . . . . . . 270
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 199
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 212
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 253
Fuses and Circuit Breakers . . . 248
Overload . . . . . . . . . . . . . . . . . . . . . 248
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 333
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 227
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 105
Compartment Overview . . . . . . . 217
Coolant Heater . . . . . . . . . . . . . . . 177
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 101
Cooling System . . . . . . . . . . . . . . . 229 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . 317
Exhaust . . . . . . . . . . . . . . . . . . . . . . 181
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Oil Life System . . . . . . . . . . . . . . . 222
Oil Pressure Gauge . . . . . . . . . . 100
Oil Pressure Light . . . . . . . . . . . . 109
Overheating . . . . . . . . . . . . . . . . . . 233
Power Messages . . . . . . . . . . . . . .116
Running While Parked . . . . . . . . 181
Starting . . . . . . . . . . . . . . . . . . . . . . . 175
Enhanced Technology Glass . . . . 40
Entry/Exit Lighting . . . . . . . . . . . . . . 127
Equipment, Towing . . . . . . . . . . . . . 209
Event Data Recorders . . . . . . . . . . 330
Extender, Seat Belt . . . . . . . . . . . . . . 55
Exterior Lamp Controls . . . . . . . . . 122
Exterior Lamps Off Reminder . . . 123
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 127
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 234
Fast Idle System . . . . . . . . . . . . . . . . 176
Filter, Engine Air Cleaner . . . . . . . . . . . 227 Flash-to-Pass . . . . . . . . . . . . . . . . . . . 123
Flashers, Hazard Warning . . . . . . 125
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 276
Changing . . . . . . . . . . . . . . . . . . . . . 278
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 300
Fluid
AutomaticTransmission . . . . . . . . . . . 223, 226
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 237
Power Steering . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 235
Folding Mirrors . . . . . . . . . . . . . . . . . . 37
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 328
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Front Storage . . . . . . . . . . . . . . . . . . . . 88
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 245
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Additives . . . . . . . . . . . . . . . . . . . . . 198
Economy Driving . . . . . . . . . . . . . . . 23
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 201

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
352 Index
Seats (cont'd)Reclining Seatbacks . . . . . . . . . . . . 43
Securing Child Restraints . . . . 82, 84
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . .110
OnStar . . . . . . . . . . . . . . . . . . . . . . . 334
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service . . . . . . . . . . . . . . . . . . . . . . . . . 161 Accessories and
Modifications . . . . . . . . . . . . . . . . 215
Climate Control System . . . . . . . 156
Doing Your Own Work . . . . . . . . 215
Maintenance Records . . . . . . . . 313
Maintenance, General Information . . . . . . . . . . . . . . . . . . 301
Parts Identification Label . . . . . 314
Publications Ordering Information . . . . . . . . . . . . . . . . . . 327
Scheduling Appointments . . . . . 324
Services Special Application . . . . . . . . . . . 307
Servicing the Airbag . . . . . . . . . . . . . 66
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 241
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 179
Out of Park . . . . . . . . . . . . . . . . . . . 180 Side Blind Zone Alert (SBZA) . . . 195
Side Door . . . . . . . . . . . . . . . . . . . . . . . 32
Sidemarker
Bulb Replacement . . . . . . . . . . . . 245
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 125
Sliding Door . . . . . . . . . . . . . . . . . . . . . 33
Special Application Services . . . . 307
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 315
Speedometer . . . . . . . . . . . . . . . . . . . . 99
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 108
Start Assist, Hill . . . . . . . . . . . . . . . . . 188
Start Vehicle, Remote . . . . . . . . . . . 28
Starter Switch Check . . . . . . . . . . . 241
Starting the Engine . . . . . . . . . . . . . 175
Steering . . . . . . . . . . . . . . . . . . . . . . . . 164 Fluid, Power . . . . . . . . . . . . . . . . . . 235
Wheel Adjustment . . . . . . . . . . . . . . 91
Wheel Controls . . . . . . . . . . . . . . . . . 91
Storage Areas Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Storage Compartments . . . . . . . . . . 88
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 169
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 40 Swing-out Windows . . . . . . . . . . . . . . 39
Switches
Airbag On-Off . . . . . . . . . . . . . . . . . . . 63
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Infotainment . . . . . . . . . . . . . 129, 331
Noise Control . . . . . . . . . . . . . . . . . 240
T
Taillamps . . . . . . . . . . . . . . . . . . . . . . . 245
Text Telephone (TTY) Users . . . . 321
Theft-Deterrent Systems . . . . . . . . . 34Immobilizer . . . . . . . . . . . . . . . . . . . . . 34
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 All-Season . . . . . . . . . . . . . . . . . . . . 256
All-Terrain . . . . . . . . . . . . . . . . . . . . 256
Buying New Tires . . . . . . . . . . . . . 271
Chains . . . . . . . . . . . . . . . . . . . . . . . . 276
Changing . . . . . . . . . . . . . . . . . . . . . 278
Designations . . . . . . . . . . . . . . . . . 259
Different Size . . . . . . . . . . . . . . . . . 273
Dual Rotation . . . . . . . . . . . . . . . . . 270
Full-Size Spare . . . . . . . . . . . . . . . 285
If a Tire Goes Flat . . . . . . . . . . . . 276
Inspection . . . . . . . . . . . . . . . . . . . . 268
Pressure . . . . . . . . . . . . . . . . . . . . . . 263
Pressure Light . . . . . . . . . . . . . . . . 109