air filter CHEVROLET EXPRESS 2021 Owners Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
172 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 173
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 173
Accessories and Modifications . . . . . . . . . . 173
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 173
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Engine Compartment Overview . . . . . . . . 176
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Engine Oil Life System . . . . . . . . . . . . . . . . . 181
Automatic Transmission Fluid . . . . . . . . . . 181
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 182
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 183
Engine Overheating . . . . . . . . . . . . . . . . . . . . 187
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Power Steering Fluid . . . . . . . . . . . . . . . . . . 188
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Battery - North America . . . . . . . . . . . . . . . 191
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Noise Control System . . . . . . . . . . . . . . . . . . 192
Starter Switch Check . . . . . . . . . . . . . . . . . . . 193
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 193
Ignition Transmission Lock Check . . . . . . 193 Park Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Wiper Blade Replacement . . . . . . . . . . . . . 194
Windshield Replacement . . . . . . . . . . . . . . 194
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 194
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 195
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 195
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . . . . . . . . . . . . . . . 195
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 197
Electrical System
Electrical System Overload . . . . . . . . . . . . . 197
Fuses and Circuit Breakers . . . . . . . . . . . . . 198
Engine Compartment Fuse Block . . . . . . 199
Floor Console Fuse Block . . . . . . . . . . . . . . 202
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 204
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 205
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 207
Tire Terminology and Definitions . . . . . 208
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Tire Pressure Monitor System . . . . . . . . . . 211
Tire Pressure Monitor Operation . . . . . . . 212
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 214
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 214
When It Is Time for New Tires . . . . . . . . 216
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 217
Different Size Tires and Wheels . . . . . . . . 218
Uniform Tire Quality Grading . . . . . . . . . . 218
Wheel Alignment and Tire Balance . . . . 219
Wheel Replacement . . . . . . . . . . . . . . . . . . . 220
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 221
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 222
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . 230
Jump Starting
Jump Starting - North America . . . . . . . . 230
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 233
Recreational Vehicle Towing . . . . . . . . . . . 234
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
Vehicle Care 177
1.Battery - North America 0191.
2. Radiator Pressure Cap. See Cooling
System 0183.
3. Coolant Recovery Tank. See Cooling
System 0183.
4. Engine Cooling Fan (Out of View). See Cooling System 0183.
5. Engine Air Cleaner/Filter 0182.
6. Engine Oil Dipstick. See “Checking Engine
Oil” under Engine Oil 0179.
7. Engine Oil Fill Cap. See “When to Add
Engine Oil” underEngine Oil 0179.
8. Power Steering Fluid Reservoir. See Power Steering Fluid 0188.
9. Engine Compartment Fuse Block 0199.
10. Brake Master Cylinder Reservoir. See Brake Fluid 0190.
11. Windshield Washer Fluid Reservoir. See “Adding Washer Fluid” underWasher
Fluid 0189.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
178 Vehicle Care
6.6L V8 Engine
1. Battery - North America 0191.
2. Radiator Pressure Cap. See Cooling
System 0183.
3. Coolant Recovery Tank. See Cooling
System 0183. 4. Engine Oil Dipstick. See
“Checking Engine
Oil” under Engine Oil 0179.
5. Engine Cooling Fan (Out of View). See Cooling System 0183.
6. Engine Air Cleaner/Filter 0182. 7. Engine Oil Fill Cap. See
“When to Add
Engine Oil” underEngine Oil 0179.
8. Power Steering Fluid Reservoir. See Power Steering Fluid 0188.
9. Engine Compartment Fuse Block 0199.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
Vehicle Care 181
trash or pouring it on the ground, into
sewers, or into streams or bodies of water.
Recycle it by taking it to a place that
collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that
indicates when to change the engine oil and
filter. This is based on a combination of
factors which include engine revolutions,
engine temperature, and miles driven. Based
on driving conditions, the mileage at which
an engine oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
When the system has calculated that oil life
has been diminished, it indicates that an oil
change is necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the oil as
soon as possible within the next 1 000 km
(600 mi). It is possible that, if driving under
the best conditions, the oil life system
might indicate that an oil change is not
necessary for up to a year. The engine oil
and filter must be changed at least once a
year and, at this time, the system must be
reset. Your dealer has trained service peoplewho will perform this work and reset the
system. It is also important to check the oil
regularly over the course of an oil drain
interval and keep it at the proper level.
If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is
changed so that the system can calculate
the next engine oil change.
To reset the Engine Oil Life System on most
models:
1. Display the OIL LIFE REMAINING on the DIC. See Driver Information Center (DIC)
0 82.
2. Press and hold
Von the DIC while the
Oil Life display is active. The oil life will
change to 100%.
The oil life system can also be reset as
follows: 1. Display the OIL LIFE REMAINING on the DIC. See Driver Information Center (DIC)
0 82. 2. Fully press and release the accelerator
pedal three times within five seconds.
If the display shows 100%, the system is
reset.
If the CHANGE ENGINE OIL SOON message
comes back on when the vehicle is started,
the engine oil life system has not reset.
Repeat the procedure.
Automatic Transmission Fluid
How to Check Automatic Transmission
Fluid
It is not necessary to check the transmission
fluid level. A transmission fluid leak is the
only reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and have it
repaired as soon as possible.
There is a special procedure for checking and
changing the transmission fluid. Because this
procedure is difficult, this should be done at
your dealer. Contact your dealer for
additional information.
Caution
Use of the incorrect automatic
transmission fluid may damage the
vehicle, and the damage may not be
(Continued)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
182 Vehicle Care
Caution (Continued)
covered by the vehicle warranty. Always
use the correct automatic transmission
fluid. SeeRecommended Fluids and
Lubricants 0251.
Change the fluid and filter at the intervals
listed in Maintenance Schedule 0245, and
be sure to use the fluid listed in
Recommended Fluids and Lubricants 0251.
Engine Air Cleaner/Filter
The air cleaner/filter assembly is on the
front of the engine compartment on the
driver side of the vehicle. See Engine
Compartment Overview 0176.
When to Inspect the Engine Air Cleaner/Filter
For intervals on changing and inspecting the
engine air filter, see Maintenance Schedule
0 245.
How to Inspect/Replace the Engine Air
Cleaner/Filter
Do not start the engine or have the engine
running with the engine air filter housing
open. Before removing the engine air filter,
make sure that the engine air filter housing and nearby components are free of dirt and
debris. Do not clean the engine air filter or
components with water or compressed air.
4.3L V6 Engine
To inspect and replace the filter: 1. Remove the eight screws, slide the top cover forward and lift, to gain access to
the air cleaner/filter.
2. Remove the air cleaner/filter from the housing base. Take care to dislodge as
little dirt as possible.
{Warning
If part replacement is necessary, the part
must be replaced with one of the same
part number or with an equivalent part.
Use of a replacement part without the
same fit, form, and function may result
in personal injury or damage to the
vehicle.
3. Clean the air cleaner/filter sealing surface and housing base.
4. Install the engine air cleaner/filter in the housing base.
5. Install the top cover by sliding it into position on the housing base, and secure
using eight screws.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
Vehicle Care 183
6.6L V8 Engine
To inspect and replace the filter: 1. Remove the six screws, slide the top cover forward and lift, to gain access to
the air cleaner/filter.
2. Remove the air cleaner/filter from the housing base. Take care to dislodge as
little dirt as possible.
{Warning
If part replacement is necessary, the part
must be replaced with one of the same
part number or with an equivalent part.
Use of a replacement part without the
(Continued)
Warning (Continued)
same fit, form, and function may result
in personal injury or damage to the
vehicle.
3. Clean the air cleaner/filter sealing surface and housing base.
4. Install the engine air cleaner/filter in the housing base.
5. Install the top cover by sliding it into position on the housing base, and secure
using six screws.
See Maintenance Schedule 0245 to
determine when to replace the engine air
cleaner/filter.
{Warning
Operating the engine with the air
cleaner/filter off can cause you or others
to be burned. Use caution when working
on the engine. Do not start the engine or
drive the vehicle with the air cleaner/
filter off, as flames may be present if the
engine backfires.
Caution
If the air cleaner/filter is off, dirt can
easily get into the engine, which could
damage it. Always have the air cleaner/
filter in place when driving.
Cooling System
The cooling system allows the engine to
maintain the correct working temperature.
4.3L V6 Engine
1. Radiator Pressure Cap
2. Coolant Recovery Tank
3. Engine Cooling Fan (Out of View)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
Service and Maintenance 245
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0126.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel 0153.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal chart.
The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather
.Mainly driven in hilly or mountainous
terrain
.Frequently towing a trailer
.Used for high speed or competitive
driving
.Used for taxi, police, or delivery service Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe chart.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See
Doing Your
Own Service Work 0173.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine Oil
0 179.
Once a Month
.Check the tire inflation pressures,
including the spare. See Tire Pressure
0 210.
.Inspect the tires for wear. See Tire
Inspection 0214.
.Check the windshield washer fluid level.
See Washer Fluid 0189.
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 0181.
Extended Idle Use
When the vehicle is used in a way that
requires extended idle time, one hour of use
shall be deemed the same as 53 km (33 mi).
See Driver Information Center (DIC) 082 for
hourmeter.
Air Conditioning Desiccant (Replace Every
Seven Years)
The air conditioning system requires
maintenance every seven years. This service
requires replacement of the desiccant to

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
246 Service and Maintenance
help the longevity and efficient operation of
the air conditioning system. This service can
be complex. See your dealer.
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.
SeeTire Rotation 0214.
.Check engine oil level and oil
life percentage. If needed, change engine
oil and filter, and reset oil life system.
See Engine Oil 0179 and
Engine Oil Life System 0181.
.Check engine coolant level. See Cooling
System 0183.
.Check windshield washer fluid level. See
Washer Fluid 0189.
.Check tire inflation pressures, including
the spare. See Tire Pressure0210.
.Inspect tire wear. See Tire Inspection
0 214.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter. See
Engine Air Cleaner/Filter 0182.
.Inspect brake system. See Exterior Care
0 235.
.Visually inspect steering, suspension, and
chassis components for damage, including
cracks or tears in the rubber boots, loose
or missing parts, or signs of wear at least
once a year. See Exterior Care0235.
.Inspect power steering for proper
attachment, connections, binding, leaks,
cracks, chafing, etc.
.Visually inspect halfshafts and drive
shafts for excessive wear, lubricant leaks,
and/or damage including: tube dents or
cracks, constant velocity joint or universal
joint looseness, cracked or missing boots,
loose or missing boot clamps, center
bearing excessive looseness, loose or
missing fasteners, and axle seal leaks.
.Check restraint system components. See
Safety System Check 036.
.Visually inspect the fuel system including
the evaporative (EVAP) system for
damage or leaks. Visually check all fuel
pipes, vapor lines, and hoses for proper
attachment, connection, routing, and
condition.
.Visually inspect exhaust system and
nearby heat shields for loose or damaged
parts.
.Lubricate body components. See Exterior
Care 0235.
.Check starter switch. See Starter Switch
Check 0193.
.Check automatic transmission shift lock
control function. See Automatic
Transmission Shift Lock Control Function
Check 0193.
.Check ignition transmission lock. See
Ignition Transmission Lock Check 0193.
.Check parking brake and automatic
transmission park mechanism. See Park
Brake and P (Park) Mechanism Check
0 193.
.Check accelerator pedal for damage, high
effort, or binding. Replace if needed.
.Lubricate the steering linkage (greasable
joints). See Normal and Severe
Maintenance Schedules. For severe
commercial use vehicles, see Special
Application Services 0248.
.Visually inspect the spare tire to ensure
that it is tightly stowed under the vehicle.
Push, pull, and try to turn the tire. If the
spare tire moves, tighten as necessary.
See Tire Changing 0222.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
Service and Maintenance 247
Maintenance Schedule Additional
Required Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi 60 000 km/37,500 mi
72 000 km/45,000 mi84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi
144 000 km/90,000 mi 156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil
level and oil life percentage. Change engine oil and filter,
if needed.
Lubricate the steering linkage.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace engine air cleaner filter. (1)@ @@
Replace spark plugs. Inspect spark plug wires and/or boots.@
Drain and fill engine cooling system. (2)@
Visually inspect accessory drive belts. (3)@
Replace brake fluid. (4)
Replace windshield wiper blades. (5)
@ @ @ @ @ @ @ @ @ @
Replace air conditioning desiccant. (6)
Footnotes—Maintenance Schedule
Additional Required Services - Normal
(1) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 182. (2)
Or every five years, whichever comes
first. See Cooling System 0183.
(3) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(4) Replace brake fluid every five years. See
Brake Fluid 0190. (5)
Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0194.
(6) Replace air conditioning desiccant every
seven years.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15555951) - 2022 - CRC - 1/27/22
248 Service and Maintenance
Maintenance Schedule Additional
Required Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi 60 000 km/37,500 mi
72 000 km/45,000 mi84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi
144 000 km/90,000 mi 156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil
level and oil life percentage. Change engine oil and filter,
if needed.
Lubricate the steering linkage.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace engine air cleaner filter. (1)@ @@
Change automatic transmission fluid and filter.@@@
Replace spark plugs. Inspect spark plug wires and/or boots.@
Drain and fill engine cooling system. (2)@
Visually inspect accessory drive belts. (3)@
Replace brake fluid. (4)
Replace windshield wiper blades. (5)
@ @ @ @ @ @ @ @ @ @
Replace air conditioning desiccant. (6)
Footnotes—Maintenance Schedule
Additional Required Services - Severe
(1) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 182.
(2) Or every five years, whichever comes
first. See Cooling System 0183. (3)
Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(4) Replace brake fluid every five years. See
Brake Fluid 0190.
(5) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0194.
(6) Replace air conditioning desiccant every
seven years.Special Application Services
.Vehicles with Dual Wheels: Check dual
wheel nut torque at 160, 1 600, and
10 000 km (100, 1,000, and 6,000 mi) of
driving. Repeat this service whenever a
tire/wheel is serviced or removed.
.Severe Commercial Use Vehicles Only:
Lubricate chassis components every oil
change.