Black plate (36,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
5-36 Instruments and Controls
Service Vehicle Messages
SERVICE A/C SYSTEM
This message displays when the
electronic sensors that control the
air conditioning and heating
systems are no longer working.
Have the climate control system
serviced by your dealer if you notice
a drop in heating and air
conditioning efficiency.
SERVICE VEHICLE SOON
This message displays when a
non-emissions related malfunction
occurs. Have the vehicle serviced
by your dealer as soon as possible.
STARTING DISABLED
SERVICE THROTTLE
This message displays if the starting
of the engine is disabled due to the
electronic throttle control system.
Have the vehicle serviced by your
dealer immediately.This message only appears while
the ignition is in ON/RUN, and will
not disappear until the problem is
resolved.
This message cannot be
acknowledged.
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. See
Tire
Pressure Light on page 5‑22. 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 on
page 10‑44, Vehicle Load Limits on
page 9‑10, and Tire Pressure on
page 10‑53. The DIC also shows
the tire pressure values. See Driver
Information Center (DIC) on
page 5‑24.
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 on page 5‑22. Several
conditions may cause this message
to appear. See Tire Pressure
Monitor Operation on page 10‑55 for
more information. If the warning
comes on and stays on, there may
be a problem with the TPMS. See
your dealer.
Black plate (37,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
Instruments and Controls 5-37
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. SeeDriver Information
Center (DIC) on page 5‑24 for more
information. The tire positions must
be re-learned after rotating the tires
or after replacing a tire or sensor.
See Tire Inspection on page 10‑58,
Tire Rotation on page 10‑58, Tire
Pressure Monitor Operation on
page 10‑55, and Tire Pressure on
page 10‑53 for more information.
Transmission Messages
GRADE BRAKING DISABLED
This message displays when the
grade braking has been disabled
with the tow/haul mode button on
the end of the shift lever. See Tow/
Haul Mode on page 9‑29, Automatic
Transmission (Six Speed) on
page 9‑22 orAutomatic Transmission (Four Speed) on
page 9‑34, and
Cruise Control on
page 9‑34.
GRADE BRAKING ENABLED
This message displays when the
grade braking has been enabled
with the tow/haul mode button on
the end of the shift lever. See Tow/
Haul Mode on page 9‑29, Automatic
Transmission (Six Speed) on
page 9‑22 orAutomatic
Transmission (Four Speed) on
page 9‑26, and Cruise Control on
page 9‑34.
GRADE BRAKING ON
This message displays when the
grade braking has been activated
while driving on downhill grades.
This message will only appear the
first time the feature is activated in
an ignition cycle. See Tow/Haul
Mode on page 9‑29, Automatic
Transmission (Six Speed) on
page 9‑22 orAutomatic Transmission (Four Speed) on
page 9‑34, and
Cruise Control on
page 9‑34.
SERVICE TRANSMISSION
This message displays when there
is a problem with the transmission.
See your dealer for service.
TRANSMISSION HOT IDLE
ENGINE
Notice: Do not drive the vehicle
while the transmission fluid is
overheating and the transmission
temperature warning is displayed
on the instrument cluster and/or
DIC, or the transmission can be
damaged. This could lead to
costly repairs that would not be
covered by the warranty.
Black plate (11,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
Driving and Operating 9-11
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 recommended
cold tire inflation pressures (4).
For more information on tires
and inflation seeTires on
page 10‑44 andTire Pressure
on page 10‑53.
There is also important loading
information on the vehicle
Certification/Tire label. It tells
you 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, the load from your
trailer will be transferred to
your vehicle. Consult this
manual to determine how this
reduces the available cargo
and luggage load capacity of
your vehicle. See Trailer
Towing on page 9‑49 for
important information on
towing a trailer, towing safety
rules and trailering tips.
Black plate (13,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
Driving and Operating 9-13
Refer to the vehicle tire and
loading information label for
specific information about the
vehicle's capacity weight and
seating positions. The combined
weight of the driver, passengers,
and cargo should never exceed
the vehicle capacity weight.
Certification/Tire Label
A vehicle specific Certification/
Tire label is found on the rear
edge of the driver door. The
label shows the size of thevehicle'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
tells you 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.
Never exceed the GVWR for the
vehicle, or the GAWR for either
the front or rear axle.
If there is a heavy load, it should
be spread out.
{WARNING
Do not load the vehicle any
heavier than the Gross
Vehicle Weight Rating
(GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
This can cause systems to
break and change the way the
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
shorten the life of the vehicle.
Black plate (2,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
10-2 Vehicle Care
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-44
All-Season Tires . . . . . . . . . . . . 10-45
Winter Tires . . . . . . . . . . . . . . . . 10-45
Summer Tires . . . . . . . . . . . . . . 10-46
Tire Sidewall Labeling . . . . . . 10-46
Tire Designations . . . . . . . . . . . 10-48
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-50
Tire Pressure . . . . . . . . . . . . . . . 10-53
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-54
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-55
Tire Inspection . . . . . . . . . . . . . . 10-58
Tire Rotation . . . . . . . . . . . . . . . 10-58
Dual Tire Rotation . . . . . . . . . . 10-59
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-60
Buying New Tires . . . . . . . . . . . 10-61
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-62 Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-63
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-64
Wheel Replacement . . . . . . . . 10-65
Tire Chains . . . . . . . . . . . . . . . . . 10-65
If a Tire Goes Flat . . . . . . . . . . 10-66
Tire Changing . . . . . . . . . . . . . . 10-68
Secondary Latch System . . . 10-75
Full-Size Spare Tire . . . . . . . . 10-77
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-78
Towing
Towing the Vehicle . . . . . . . . . 10-81
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . 10-81
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-84
Interior Care . . . . . . . . . . . . . . . . 10-87
Floor Mats . . . . . . . . . . . . . . . . . . 10-90
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
Black plate (43,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
Vehicle Care 10-43
Mini-Fuse UsageF13 Heating, Ventilation and Air
Conditioning 2
F14 Heating, Ventilation and Air
Conditioning 1
F15 Empty
F17 Outside Rearview Mirror Heater
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) Mini-Fuse Usage
F23 Instrument Cluster
F25 Heating, Ventilation and Air
Conditioning
Control
F26 Auxiliary/Trailer Backup
F27 Taillamps Backup
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 Unlock
F37 Empty
F38 Empty J-Case Fuse Usage
F16 Upfitter Auxiliary 1
F24 Empty
F28 Upfitter Auxiliary 2 Reading Lamps
F29 Rear Blower
Relays Usage K1 Run (High Current Micro)
K2 Empty (High Current Micro)
K3 Park Lamps (High Current Micro)
K4 Upfitter Auxiliary 2 (High Current Mini)
K5 Rear Defogger (High Current
Micro)
K6 Retained Accessory Power
(RAP) (High
Current Micro)
Black plate (44,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
10-44 Vehicle Care
Circuit
Breaker Usage
CB1 Power Seats
CB2 Power WindowsWheels 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 on page 9‑10.
(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.
.Replace any tires that have
been damaged by impacts
with potholes, curbs, etc.
(Continued)
Black plate (47,1)Chevrolet Express Owner Manual - 2013 - 1stPrintReady - 6/19/12
Vehicle Care 10-47
(4) 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
molded onto both sides of the
tire, although only one side may
have the date of manufacture.
(5) Tire Ply Material
:The type
of cord and number of plies in
the sidewall and under the tread.
(6) Uniform Tire Quality
Grading (UTQG)
:Tire
manufacturers are required to
grade tires based on three
performance factors: treadwear,
traction, and temperature
resistance. For more
information, see Uniform Tire
Quality Grading on page 10‑63. (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
on page 10‑53 andVehicle Load
Limits on page 9‑10.
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