trailer CHEVROLET EXPRESS 2023 Service Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Service and Maintenance 243
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. SeeEngine Oil Life System 0181.
Every 72 000 km (45,000 mi)
.Replace the engine air filter. Or every
48 months, whichever occurs first.
If driving in dusty conditions, inspect the
filter at each oil change or more often as
needed.
Every 156 000 km (97,500 mi)
.Replace spark plugs. Inspect spark plug
wires and/or boots.
Every 240 000 km (150,000 mi)
.Drain and fill engine cooling system. Or
every six years, whichever comes first.
See Cooling System 0183.
Severe Conditions Requiring More
Frequent Maintenance*
.Public service, military, or commercial use
vehicles to include the following:
‐ Ambulances, police cars, and
emergency rescue vehicles. ‐
Civilian vehicles such as light duty
pick-up trucks, SUVs, and passenger
cars that are used in military
applications.
‐ Recovery vehicles such as tow trucks
and flatbed single vehicle carriers or
any vehicle that is consistently used in
towing trailers or other loads.
‐ High use commercial vehicles such as
courier delivery vehicles, private
security patrol vehicles, or any vehicles
that operate on a 24–hour basis.
‐ Any vehicle consistently operated in a
high sand or dust environment such as
those used on oil pipelines and similar
applications.
.Vehicles that are regularly used for short
trips of 6 km (4 mi) or less.
The oil life indicator will show you when
to change the oil and filter. Under severe
conditions the indicator may come on
before 12 000 km (7,500 mi).
* Footnote: Under extreme driving
conditions listed above, it may be
necessary to replace your spark plugs at
more frequent intervals. For further
assistance in determining the most suitable service maintenance intervals for
your vehicle, please contact your
authorized GM Dealer.
Extreme service is for vehicles mainly
driven off-road in four-wheel drive or used
in farming, mining, forestry, or snow
plowing.
Additional Required Services
—Severe
Service
Every 72 000 km (45,000 mi)
.Change automatic transmission fluid and
filter.
Owner Checks and Services
Every Five Years
.Replace brake fluid.
Every Seven Years
.Replace Air Conditioning Desiccant every
seven years. The air conditioning system
requires maintenance every seven years.
This service requires replacement of the
desiccant to help the longevity and
efficient operation of the air conditioning
system. This service can be complex. See
your dealer.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Index 277
LATCH, Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Lighter, Cigarette . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Illumination Control . . . . . . . . . . . . . . . . . . . . 94
Lights Airbag On-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 75
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Brake System Warning . . . . . . . . . . . . . . . . . 78
Charging System . . . . . . . . . . . . . . . . . . . . . . . 77
Check Engine (Malfunction Indicator) . . . 77
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . 82
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 81
Gauges and Indicators . . . . . . . . . . . . . . . . . . . 71
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Lane Departure Warning . . . . . . . . . . . . . . . . 79
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 81
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 75
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . 79
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . . 80 Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . .143
Locks
Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cargo Door Relocking . . . . . . . . . . . . . . . . . . . . 12
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 12
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . 12
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . .81
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . . . . . . . . . 51
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 242 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Malfunction Indicator Lamp . . . . . . . . . . . . . . . .77
Manual
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Media
Avoiding Untrusted Devices . . . . . . . . . . . . 103 Messages
Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Mirrors Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Interior Rearview . . . . . . . . . . . . . . . . . . . . . . . 18
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 19
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Monitor System, Tire Pressure . . . . . . . . . . . 209
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . 103
Multi-Point Vehicle Inspection (MPVI) . . . . 244
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 269
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 129
Noise Control System . . . . . . . . . . . . . . . . . . . . . 191
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
280 Index
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . 10
Starter Switch Check . . . . . . . . . . . . . . . . . . . . . 192
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . 132
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122Fluid, Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . . 66
Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 67
Storage Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Swing-out Windows . . . . . . . . . . . . . . . . . . . . . . 20
Switches Airbag On-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
System Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 145
Forward Collision Alert (FCA) . . . . . . . . . . . 148
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Noise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
T
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Text Telephone (TTY) Users . . . . . . . . . . . . . . 255
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . .16 Theft-Deterrent Systems (cont'd)
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 215
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Full-Size Spare . . . . . . . . . . . . . . . . . . . . . . . . . 227
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 219
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Pressure Monitor Operation . . . . . . . . . . . 210
Pressure Monitor System . . . . . . . . . . . . . . 209
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 205
Terminology and Definitions . . . . . . . . . . . 206
Uniform Tire Quality Grading . . . . . . . . . . 216
Wheel Alignment and Tire Balance . . . . . 217
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 218
When It Is Time for New Tires . . . . . . . . . 214
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . 140
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . 79 Towing
Driving Characteristics . . . . . . . . . . . . . . . . . 155
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
General Information . . . . . . . . . . . . . . . . . . . 155
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 232
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Trailer Sway Control (TSC) . . . . . . . . . . . . . 170
Traction Control System (TCS)/StabiliTrakLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Control/Electronic Stability Control . . . . 142
Trademarks and License Agreements . . . . . . 112
Trailer Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 170
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . 181
Transportation Program, Courtesy . . . . . . . 257
Transporting a Disabled Vehicle . . . . . . . . . . . . . . . . . . . . . 231
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
TTY Users Customer Assistance . . . . . . . . . . . . . . . . . . . 255
Turn and Lane-Change Signals . . . . . . . . . . . . 93