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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Vehicle Care 203
Mini-FusesUsage
F17 Heated Outside Mirrors
F18 Rear Window Defogger
F19 Compass
F20 Radio/Chime/SiriusXM Satellite Radio
F21 Remote Function Actuator/Tire Pressure
Monitor
F22 Ignition Switch/Discrete Logic Ignition Sensor/
Pass Key 3
F23 Instrument Cluster
F24 –
F25 HVAC Control
F26 Auxiliary/Trailer Reverse Lamps
F27 Reverse Tail Lamps
F28 Upfitter 2/Gas Ambulance
F29 Rear Blower
F30 Upfitter/Courtesy Lamps Mini-Fuses
Usage
F31 Front Door Lock
F32 Rear Door Lock
F33 Cargo Door Unlock
F34 Front Passenger Door Unlock
F35 Rear Passenger Door Unlock
F36 Driver Door Unlock F37 –
F38 –
Relays Usage
K1 Run
K2 –
K3 Parking Lamps
K4 Upfitter 2 K5 Rear Window Defogger
K6 Retained Accessory Power Circuit Breakers Usage
CB1 Power Seats
CB2 Power Windows
Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits 0126.
(Continued)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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216 Vehicle Care
Warning (Continued)
suddenly and cause a crash. Use only
radial-ply tires with the wheels on
the vehicle.
Winter tires with the same speed rating
as the original equipment tires may not
be available for H, V, W, Y and ZR
speed rated tires. Never exceed the
winter tires’ maximum speed capability
when using winter tires with a lower
speed rating.
If the vehicle tires must be replaced
with a tire that does not have a TPC
Spec number, make sure they are the
same size, load range, speed rating, and
construction (radial) as the original
tires.
The Tire and Loading Information label
indicates the original equipment tires
on the vehicle. See Vehicle Load Limits
0 126.Different Size Tires and Wheels
If wheels or tires are installed that are a
different size than the original equipment
wheels and tires, vehicle performance,
including its braking, ride and handling
characteristics, stability, and resistance to
rollover may be affected. If the vehicle has
electronic systems such as antilock brakes,
rollover airbags, traction control, electronic
stability control, or All-Wheel Drive, the
performance of these systems can also be
affected.
{Warning
If different sized wheels are used, there
may not be an acceptable level of
performance and safety if tires not
recommended for those wheels are
selected. This increases the chance of a
crash and serious injury. Only use GM
specific wheel and tire systems developed
for the vehicle, and have them properly
installed by a GM certified technician.
See Buying New Tires 0215 and
Accessories and Modifications 0173.
Uniform Tire Quality Grading
The following information relates to the
system developed by the United States
National Highway Traffic Safety
Administration (NHTSA), which grades
tires by treadwear, traction, and
temperature performance. This applies
only to vehicles sold in the United
States. The grades are molded on the
sidewalls of most passenger car tires.
The Uniform Tire Quality Grading
(UTQG) system does not apply to deep
tread, winter tires, compact spare tires,
tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General
Motors passenger cars and light trucks
may vary with respect to these grades,
they must also conform to federal
safety requirements and additional
General Motors Tire Performance
Criteria (TPC) standards.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
220 Vehicle Care
etc.). Removal of some weight may improve
the ability to fit the jack under the vehicle
at the correct jacking location.
{Warning
Changing a tire can be dangerous. The
vehicle can slip off the jack and roll over
or fall causing injury or death. Find a
level place to change the tire. To help
prevent the vehicle from moving:1. Set the parking brake firmly.
2. Put the vehicle in P (Park).
3. Turn the vehicle off and do not restart the vehicle while it is raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of the tire at the opposite
corner of the tire being changed.
When the vehicle has a flat tire (2), use the
following example as a guide to assist in the
placement of the wheel blocks (1),
if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains how to
repair or change a tire.
Tire Changing
Removing the Spare Tire and Tools
Equipment needed for a cargo van or a
passenger van is in the passenger side rear
corner of the vehicle.
Remove the retaining wing bolt and lift it
off of the mounting bracket.
Equipment needed for a 15-passenger seating
arrangement is secured on the rear floor on
the passenger side of the vehicle.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 221
Remove the retaining wing bolt and lift it
out of the mounting bracket to access the
equipment.
The tools you will be using include:
1. Jack
2. Hoist Handle
3. Extension(s)
4. Wheel Wrench
5. Jack Handle
The spare tire is mounted in the rear
underbody of the vehicle.
Use the hoist handle, extension(s), and the
wheel wrench to remove the
underbody-mounted spare tire.
To lower the spare tire from the vehicle:
1. Spare Tire
2. Tire/Wheel Retainer
3. Hoist Cable
4. Hoist Assembly5. Hoist Shaft
6. Hoist Handle and Extension(s)
7. Wheel Wrench
1. Assemble the wheel wrench (7) to the
hoist handle and the extension(s) (6).
2. Open the passenger side rear door.
3. Insert the chisel end of the hoist handle, on an angle, through the hole in the rear
floor panel above the bumper.
Be sure the hoist handle connects to the
hoist shaft. The chiseled end of the hoist
handle is used to lower the spare tire.
4. Turn the wheel wrench counterclockwise to lower the spare tire to the ground.
Continue to turn the wheel wrench until
the spare tire can be pulled out from
under the vehicle.
5. Pull the spare tire out from under the vehicle.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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222 Vehicle Care
6. Tilt the tire toward the vehicle withsome slack in the cable to access the
tire/wheel retainer.
Tilt the retainer and pull it through the
center of the wheel along with the cable
and spring.
For a vehicle that was completed from a
cab and chassis, refer to the information
from the body supplier/installer.
The spare tire is a full-size tire, like the
other tires on the vehicle. 7. Put the spare tire near the flat tire.
8. Close the passenger side rear door.
Removing the Flat Tire and Installing the
Spare Tire
If the vehicle has plastic wheel nut caps,
loosen them by turning the wheel wrench
counterclockwise. The wheel nut caps are
designed to remain with the center cap.
Remove the center cap.
If the wheel has a smooth center piece,
place the chisel end of the wheel wrench in
the slot on the wheel and gently pry it out.
1. Jack
2. Hoist Handle
3. Extension(s) 4. Wheel Wrench
5. Jack Handle
1. Do a safety check before proceeding. See
If a Tire Goes Flat 0219.
2. Turn the wheel wrench counterclockwise
to loosen all the wheel nuts, but do not
remove them yet.
Caution
Make sure that the jack lift head is in the
correct position or you may damage your
vehicle. The repairs would not be covered
by your warranty.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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224 Vehicle Care
Warning (Continued)
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could be
badly injured or killed if the vehicle slips
off the jack. If a jack is provided with the
vehicle, only use it for changing a
flat tire.
Caution
Using a jack to raise the vehicle without
positioning it correctly could damage
your vehicle. When raising your vehicle
on a jack, be sure to position it correctly
under the frame and avoid contact with
the plastic molding.
5. Turn the wheel wrench clockwise to raise the vehicle. Raise the vehicle far enough
off the ground so there is enough room
for the spare tire to fit.6. Remove all the wheel nuts.
7. Take the flat tire off of the mountingsurface.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
cause wheel nuts to become loose
over time. The wheel could come off
and cause a crash. When changing a
wheel, remove any rust or dirt from
places where the wheel attaches to
the vehicle. In an emergency, a cloth
(Continued)
Warning (Continued)
or paper towel can be used; however,
use a scraper or wire brush later to
remove all rust or dirt.
8. Remove any rust or dirt from the wheel bolts, mounting surfaces, and spare
wheel.
{Warning
Never use oil or grease on bolts or nuts
because the nuts might come loose. The
vehicle's wheel could fall off, causing a
crash.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 225
9. Put the wheel nuts back on with therounded end of the nuts toward the
wheel. Tighten each wheel nut by hand
until the wheel is held against the hub.
10. Turn the jack handle counterclockwise to lower the vehicle. Lower the jack
completely.
{Warning
Wheel nuts that are improperly or
incorrectly tightened can cause the
wheels to become loose or come off. The
wheel nuts should be tightened with a
torque wrench to the proper torque
specification after replacing. Follow the
(Continued)
Warning (Continued)
torque specification supplied by the
aftermarket manufacturer when using
accessory locking wheel nuts. See
Capacities and Specifications0250 for
original equipment wheel nut torque
specifications.
Caution
Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To
avoid expensive brake repairs, evenly
tighten the wheel nuts in the proper
sequence and to the proper torque
specification. See Capacities and
Specifications 0250 for the wheel nut
torque specification.
11. Use the wheel wrench to tighten the nuts firmly. Turn the wheel wrench
clockwise and in a crisscross sequence, as
shown.
12. Put the wheel cover or the center cap and plastic wheel nut caps back on.
Remove any wheel blocks.
Have a technician check the wheel nut
tightness of all wheels with a torque
wrench after the first 160 km (100 mi)
and then 1 600 km (1,000 mi) after that.
Repeat this service whenever a tire is
removed or serviced. See Capacities and
Specifications 0250 for more
information.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 227
5. Insert the chisel end of the hoist handle,on an angle, through the hole in the rear
floor panel above the bumper and onto
the hoist shaft.
Do not use the chiseled end of the wheel
wrench.
6. Raise the tire part way upward. Make sure the retainer is seated in the wheel
opening.
7. Raise the tire fully against the underside of the vehicle by turning the wheel
wrench clockwise until you hear two
clicks or feel it skip twice. You cannot
overtighten the cable.8. Make sure the tire is stored securely.Push, pull (1), and then try to turn (2) the
tire. If the tire moves, use the wheel
wrench to tighten the cable.
Two clicks mean the tire is up all
the way.
Repeat this tightness check procedure
when checking the spare tire pressure
according to the scheduled maintenance
information or any time the spare tire is
handled due to service of other
components.
Correctly Stored
Incorrectly Stored
9. Return the jacking equipment to the proper location. Secure the items and
replace the jack cover.
Full-Size Spare Tire
If this vehicle came with a full-size spare
tire, it was fully inflated when new,
however, it can lose air over time. Check the
inflation pressure regularly. See Tire Pressure
0 208 and Vehicle Load Limits 0126 for
information regarding proper tire inflation
and loading the vehicle. For instructions on
how to remove, install, or store a spare tire,
see Tire Changing 0220.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 233
Caution (Continued)
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
Caution
Do not tow this vehicle with two wheels
on the ground, or vehicle damage could
occur. This damage would not be covered
by the vehicle warranty.
The vehicle was neither designed nor
intended to be towed with any of its wheels
on the ground. If the vehicle must be
towed, see Transporting a Disabled Vehicle
0 231.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory. Use a
de-icing agent only when absolutely
necessary, and have the locks greased after
using. See Recommended Fluids and
Lubricants 0246.
Washing the Vehicle
To preserve the vehicle's finish, wash it
often and out of direct sunlight.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they can
damage the vehicle's paint, metal,
or plastic parts. If damage occurs, it
would not be covered by the vehicle
warranty. Approved cleaning products can
be obtained from your dealer. Follow all
manufacturer directions regarding correct
product usage, necessary safety
precautions, and appropriate disposal of
any vehicle care product.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 237
Body Component Lubrication
Lubricate all key lock cylinders, hood hinges,
liftgate hinges, and the fuel door hinge
unless the components are plastic. Applying
silicone grease on weatherstrips with a clean
cloth will make them last longer, seal better,
and not stick or squeak.
Underbody Maintenance
At least twice a year, spring and fall, use
plain water to flush dirt and debris from the
vehicle's underbody. Your dealer or an
underbody car washing system can do this.
If not removed, rust and corrosion can
develop.
Do not directly power wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the fluid. Contaminated
fluid will decrease the life of the transfer
case and/or axles and should be replaced.
Sheet Metal Damage
If the vehicle is damaged and requires sheet
metal repair or replacement, make sure the
body repair shop applies anti-corrosion
material to parts repaired or replaced to
restore corrosion protection.Original manufacturer replacement parts will
provide the corrosion protection while
maintaining the vehicle warranty.
Finish Damage
Quickly repair minor chips and scratches
with touch-up materials available from your
dealer to avoid corrosion. Larger areas of
finish damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon and attack
painted vehicle surfaces causing blotchy,
ring-shaped discolorations, and small,
irregular dark spots etched into the paint
surface. See
“Finish Care” previously in this
section.
Interior Care
To prevent dirt particle abrasions, regularly
clean the vehicle's interior. Before using
cleaners, read and follow all safety
instructions on the label. While cleaning the
interior, open the doors and windows to get
proper ventilation. Newspapers or dark
garments can transfer color to the vehicle’s
interior.
Caution
Immediately remove cleaners, hand
lotions, sunscreen, and insect repellent
from all interior surfaces or permanent
damage may result.
Caution
Use cleaners specifically designed for the
surfaces being cleaned to prevent
permanent damage to the vehicle. Apply
all cleaners directly to a cleaning cloth.
Do not spray cleaners on any switches or
controls.
When using liquid soap cleaners, follow the
directions on the specific cleaner or soap
solution for dilution instructions.
Caution
To prevent damage:
.Never use a razor or any other sharp
object to remove soil from any interior
surface
.Never use a brush with stiff bristles.(Continued)