Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9967827) - 2017 - crc - 9/26/16
118 Instruments and Controls
Tire Messages
CHECK TIRE PRESSURE or
TIRE LOW ADD AIR TO TIRE
If the vehicle has the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the tires
is low. The low tire pressure warning
light will also come on. SeeTire
Pressure Light 0106. This message
will also indicate which tire needs to
be checked. You can receive more
than one tire pressure message at a
time. To read the other messages
that may have been sent at the
same time, press the set/reset
button. If a tire pressure message
appears on the DIC, stop as soon
as you can. Have the tire pressures
checked and set to those shown on
the Tire Loading Information label.
See Tires 0252, Vehicle Load
Limits 0171, and Tire Pressure
0 260. The DIC also shows the tire
pressure values. See Driver
Information Center (DIC) 0108.
SERVICE TIRE MONITOR
SYSTEM
If the vehicle has the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
system is not working properly. The
tire pressure light also flashes and
then remains on during the same
ignition cycle. See Tire Pressure
Light 0106. Several conditions may
cause this message to appear. See
Tire Pressure Monitor Operation
0 262 for more information. If the
warning comes on and stays on,
there may be a problem with the
TPMS. See your dealer.
TIRE LEARNING ACTIVE
If the vehicle has the Tire Pressure
Monitor System (TPMS), this
message displays when the system
is re-learning the tire positions on
the vehicle. See Driver Information
Center (DIC) 0108 for more
information. The tire positions must
be re-learned after rotating the tires
or after replacing a tire or sensor. See
Tire Inspection 0265, Tire
Rotation 0265, Tire Pressure
Monitor Operation 0262, and Tire
Pressure 0260 for more
information.
Transmission Messages
GRADE BRAKING DISABLED
This message displays when the
grade braking has been disabled
with the Tow/Haul Mode button. See
Tow/Haul Mode 0187, Automatic
Transmission 0183, and Cruise
Control 0192.
GRADE BRAKING ENABLED
This message displays when the
grade braking has been enabled
with the Tow/Haul Mode button. See
Tow/Haul Mode 0187, Automatic
Transmission 0183, and Cruise
Control 0192.
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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172 Driving and Operating
Tire and Loading Information
Label
Label Example
A vehicle specific Tire and
Loading Information label is
attached to the center pillar
(B-pillar). The tire and loading
information label shows the
number of occupant seating
positions (1), and the maximum
vehicle capacity weight (2) in
kilograms and pounds.
The Tire and Loading
Information label also shows the
size of the original equipment
tires (3) and the recommendedcold tire inflation pressures (4).
For more information on tires
and inflation see
Tires0252
and Tire Pressure 0260.
There is also important loading
information on the vehicle
Certification/Tire label. It may
show the Gross Vehicle Weight
Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for
the front and rear axle. See
“Certification/Tire Label” later in
this section.“Steps for Determining Correct
Load Limit–
1.
Locate the statement "The
combined weight of
occupants and cargo should
never exceed XXX kg or
XXX lbs." on your vehicle’s
placard.
2.Determine the combined
weight of the driver and
passengers that will be
riding in your vehicle.
3.Subtract the combined
weight of the driver and
passengers from XXX kg or
XXX lbs.
4.The resulting figure equals
the available amount of
cargo and luggage load
capacity. For example, if the
"XXX" amount equals
1400 lbs. and there will be
five 150 lb passengers in
your vehicle, the amount of
available cargo and luggage
load capacity is 650 lbs.
(1400-750 (5 x 150) =
650 lbs.)
5.Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely
exceed the available cargo
and luggage load capacity
calculated in Step 4.
6.If your vehicle will be towing
a trailer, load from your
trailer will be transferred to
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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174 Driving and Operating
weight of the driver, passengers,
and cargo should never exceed
the vehicle capacity weight.
Certification/Tire Label
A vehicle specific Certification/
Tire label is attached to the rear
edge of the driver door. The
label may show the size of the
vehicle's original tires and the
inflation pressures needed to
obtain the gross weight capacity
of the vehicle. This is called
Gross Vehicle Weight Rating(GVWR). The GVWR includes
the weight of the vehicle, all
occupants, fuel, and cargo.
The Certification/Tire label also
may show the maximum weights
for the front and rear axles,
called Gross Axle Weight Rating
(GAWR). To find out the actual
loads on the front and rear
axles, you need to go to a weigh
station and weigh the vehicle.
Your dealer can help you with
this. Be sure to spread out the
load equally on both sides of the
centerline.{Warning
Things you put inside the
vehicle can strike and injure
people in a sudden stop or
turn, or in a crash.
.Put things in the cargo
area of the vehicle. Try to
spread the weight evenly.
(Continued)
Warning (Continued)
.Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
.Do not leave an
unsecured child restraint
in the vehicle.
.When you carry
something inside the
vehicle, secure it
whenever you can.
.Do not leave a seat
folded down unless you
need to.
Add-On Equipment
When carrying removable items,
a limit on how many people
carried inside the vehicle may
be necessary. Be sure to weigh
the vehicle before buying and
installing the new equipment.
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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214 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 215
California Proposition65 Warning . . . . . . . . . . . . . . . . . 215
California Perchlorate Materials Requirements . . . . . 215
Accessories and Modifications . . . . . . . . . . . . . . . . 216
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 216
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 217
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 218
Engine Oil . . . . . . . . . . . . . . . . . . . . 219
Engine Oil Life System . . . . . . . 221
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 222
Engine Air Cleaner/Filter . . . . . . 225
Cooling System . . . . . . . . . . . . . . 226
Engine Coolant . . . . . . . . . . . . . . . 227
Engine Overheating . . . . . . . . . . 230
Engine Fan . . . . . . . . . . . . . . . . . . . 232
Power Steering Fluid . . . . . . . . . 232
Washer Fluid . . . . . . . . . . . . . . . . . 233
Brakes . . . . . . . . . . . . . . . . . . . . . . . 234
Brake Fluid . . . . . . . . . . . . . . . . . . . 234 Battery - North America . . . . . . 236
Rear Axle . . . . . . . . . . . . . . . . . . . . 236
Noise Control System . . . . . . . . 237
Starter Switch Check . . . . . . . . . 238
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 238
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 239
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 239
Wiper Blade Replacement . . . . 239Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 240
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 240
Halogen Bulbs . . . . . . . . . . . . . . . . 240
Headlamps . . . . . . . . . . . . . . . . . . . 241
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . 242
Taillamps . . . . . . . . . . . . . . . . . . . . . 243
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . 244
License Plate Lamp . . . . . . . . . . 244
Replacement Bulbs . . . . . . . . . . . 245
Electrical System
Electrical System Overload . . . 245
Fuses and Circuit Breakers . . . 246 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 246
Floor Console Fuse Block . . . . 250
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 252
All-Season Tires . . . . . . . . . . . . . . 253
Winter Tires . . . . . . . . . . . . . . . . . . 253
All-Terrain Tires . . . . . . . . . . . . . . . 253
Tire Sidewall Labeling . . . . . . . . 254
Tire Designations . . . . . . . . . . . . . 256
Tire Terminology and Definitions . . . . . . . . . . . . . . . . . . 257
Tire Pressure . . . . . . . . . . . . . . . . . 260
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 261
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . 262
Tire Inspection . . . . . . . . . . . . . . . . 265
Tire Rotation . . . . . . . . . . . . . . . . . 265
Dual Tire Rotation . . . . . . . . . . . . 266
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 267
Buying New Tires . . . . . . . . . . . . . 268
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 269
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 270
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 271
Wheel Replacement . . . . . . . . . . 271
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Vehicle Care 251
Mini-Fuse UsageF12 –
F13 HVAC 2
F14 HVAC 1
F15 –
F16 Upfitter 1 (if equipped)
F17 Exterior rearview heated mirrors
F18 Rear window defogger
F19 Compass
F20 Radio/Chime/ SiriusXM satellite
radio (if equipped)
F21 Remote function actuator/Tire
pressure monitor
F22 Ignition switch/ Discrete logic
ignition
sensor (PK3)
F23 Instrument cluster
F24 – Mini-Fuse Usage
F25 HVAC
F26 Auxiliary/Trailer reverse lamps
F27 Reverse lamps
F28 Upfitter 2/Reading lamps (if equipped)
F29 Rear blower
F30 Upfitter/Courtesy lamps
F31 Front door lock
F32 Rear door lock
F33 Cargo door unlock
F34 Passenger door unlock
F35 Rear passenger door unlock
F36 Driver door lock
F37 –
F38 – Relays Usage
K1 Run
K2 –
K3 Parking lamps
K4 Upfitter 2
K5 Rear defogger
K6 Retained accessory power
CB1 Power seats
CB2 Power windows
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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252 Vehicle Care
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. SeeVehicle Load
Limits 0171.
(Continued)
Warning (Continued)
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact —such
as when hitting a pothole.
Keep tires at the
recommended pressure.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)
Warning (Continued)
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 255
(7) Maximum Cold Inflation
Load Limit
:Maximum load that
can be carried and the
maximum pressure needed to
support that load. For
information on recommended
tire pressure see Tire Pressure
0 260 and Vehicle Load Limits
0 171.
Light Truck (LT-Metric) Tire
(1) Tire Size:The tire size code
is a combination of letters and
numbers used to define a
particular tire's width, height,
aspect ratio, construction type, and service description. See the
“Tire Size”
illustration later in this
section for more detail.
(2) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications meet or
exceed all federal safety
guidelines. This does not apply
to Goodyear LT225/75R16 G949
RSA and Goodyear LT225/
75R16 G933 RSD commercial
truck tires.
(3) Dual Tire Maximum Load
:
Maximum load that can be
carried and the maximum
pressure needed to support that
load when used in a dual
configuration. For information on
recommended tire pressure see
Tire Pressure 0260 and Vehicle
Load Limits 0171. (4) DOT (Department of
Transportation)
:The
Department of Transportation
(DOT) code indicates that the
tire is in compliance with the
U.S. Department of
Transportation Motor Vehicle
Safety Standards.
DOT Tire Date of
Manufacture
:The last four
digits of the TIN indicate the tire
manufactured date. The first two
digits represent the week
(01-52) and the last two digits,
the year. For example, the third
week of the year 2010 would
have a four-digit DOT date
of 0310.
(5) Tire Identification Number
(TIN)
:The letters and numbers
following the DOT code are the
Tire Identification Number (TIN).
The TIN shows the
manufacturer and plant code,
tire size, and date the tire was
manufactured. The TIN is
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256 Vehicle Care
molded onto both sides of the
tire, although only one side may
have the date of manufacture.
(6) Tire Ply Material
:The type
of cord and number of plies in
the sidewall and under the tread.
(7) Single Tire Maximum
Load
:Maximum load that can
be carried and the maximum
pressure needed to support that
load when used as a single. For
information on recommended
tire pressure see Tire Pressure
0 260 and Vehicle Load Limits
0 171.
Tire Designations
Tire Size
The following examples show
the different parts of a tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter P as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
(2) Tire Width
:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall. (3) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item 3 of the illustration, it would
mean that the tire's sidewall is
75 percent as high as it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.