Page 249 of 406

Black plate (59,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
Driving and Operating 9-59
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at least
75 percent of the vehicle Gross
Combined Weight Rating (GCWR).
See“Weight of the Trailer” inTrailer
Towing on page 9-51. Tow/Haul is
most useful under the following
driving conditions:
.When pulling a heavy trailer or a
large or heavy load through
rolling terrain.
.When pulling a heavy trailer or a
large or heavy load in
stop-and-go traffic.
.When pulling a heavy trailer or a
large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired. Operating the vehicle in Tow/Haul
Mode when lightly loaded or with no
trailer at all will not cause damage.
However, there is no benefit to the
selection of Tow/Haul when the
vehicle is unloaded. Such a
selection when unloaded may result
in unpleasant engine and
transmission driving characteristics
and reduced fuel economy. Tow/
Haul is recommended only when
pulling a heavy trailer or a large or
heavy load.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
warranty. Always check with your
dealer before adding electrical
equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle on page 3-30 andAdding
Equipment to the Airbag-Equipped
Vehicle on page 3-30.
Page 250 of 406
Black plate (60,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
9-60 Driving and Operating
2NOTES
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Black plate (1,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-3
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . 10-10
Automatic Transmission Fluid (4-Speed Transmission) . . . 10-11
Automatic Transmission Fluid (6-Speed
Transmission) . . . . . . . . . . . . . 10-13
Engine Air Cleaner/Filter . . . . 10-16
Cooling System . . . . . . . . . . . . 10-17
Engine Coolant . . . . . . . . . . . . . 10-18
Engine Overheating . . . . . . . . 10-22 Engine Fan . . . . . . . . . . . . . . . . . 10-23
Power Steering Fluid . . . . . . . 10-24
Washer Fluid . . . . . . . . . . . . . . . 10-25
Brakes . . . . . . . . . . . . . . . . . . . . . 10-25
Brake Fluid . . . . . . . . . . . . . . . . . 10-26
Battery . . . . . . . . . . . . . . . . . . . . . 10-28
All-Wheel Drive . . . . . . . . . . . . . 10-29
Front Axle . . . . . . . . . . . . . . . . . . 10-29
Rear Axle . . . . . . . . . . . . . . . . . . 10-30
Noise Control System . . . . . . 10-30
Starter Switch Check . . . . . . . 10-31
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-32
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-32
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-32
Wiper Blade Replacement . . . . . . . . . . . . . . 10-33
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-33
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-34
Halogen Bulbs . . . . . . . . . . . . . . 10-34
Headlamps . . . . . . . . . . . . . . . . . 10-34 Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-36
Taillamps . . . . . . . . . . . . . . . . . . . 10-36
Center High-Mounted Stoplamp (CHMSL) . . . . . . . 10-37
License Plate Lamp . . . . . . . . 10-38
Replacement Bulbs . . . . . . . . . 10-38
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-39
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-40
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-40
Floor Console Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-43
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-46
All-Season Tires . . . . . . . . . . . . 10-47
Winter Tires . . . . . . . . . . . . . . . . 10-47
All-Terrain Tires . . . . . . . . . . . . 10-48
Tire Sidewall Labeling . . . . . . 10-48
Tire Designations . . . . . . . . . . . 10-51
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-52
Tire Pressure . . . . . . . . . . . . . . . 10-55
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Black plate (2,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
10-2 Vehicle Care
Tire Pressure MonitorSystem . . . . . . . . . . . . . . . . . . . 10-56
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-57
Tire Inspection . . . . . . . . . . . . . . 10-61
Tire Rotation . . . . . . . . . . . . . . . 10-61
Dual Tire Rotation . . . . . . . . . . 10-62
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . 10-63
Buying New Tires . . . . . . . . . . . 10-64
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-65
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-66
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-67
Wheel Replacement . . . . . . . . 10-68
Tire Chains . . . . . . . . . . . . . . . . . 10-68
If a Tire Goes Flat . . . . . . . . . . 10-69
Tire Changing . . . . . . . . . . . . . . 10-71
Full-Size Spare Tire . . . . . . . . 10-79
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-79
Towing the Vehicle
Towing the Vehicle . . . . . . . . . 10-83
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . 10-83
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-86
Interior Care . . . . . . . . . . . . . . . . 10-91
Floor Mats . . . . . . . . . . . . . . . . . . 10-94
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:
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Black plate (3,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
Vehicle Care 10-3
California Proposition
65 Warning
Most motor vehicles, including this
one, contain and/or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm. Engine
exhaust, many parts and systems,
many fluids, and some component
wear by-products contain and/or
emit these chemicals.
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, safety belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non‐dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to vehicle components
resulting from modifications or the
installation or use of non‐GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle on
page 3-30.
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Black plate (4,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
10-4 Vehicle Care
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see Service
Publications Ordering Information
on page 13-11. This vehicle has an airbag system.
Before attempting to do your own
service work, see
Servicing the
Airbag-Equipped Vehicle on
page 3-30.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records on
page 11-15.
{Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
To open the hood:
1. Pull the handle with this symbol on it. It is in front of the driver
side door frame near the floor.
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Vehicle Care 10-5
2. Go to the front of the vehicle andlift up the secondary hood
release, which is underneath the
middle of the hood.
3. Lift the hood, release the hood
prop from its retainer, and put
the hood prop into the slot in
the hood.
If the vehicle has an underhood
lamp, it will automatically come on
and stay on until the hood is closed. Before closing the hood, be sure all
of the filler caps are on properly.
Then lift the hood to relieve
pressure on the hood prop. Remove
the hood prop from the slot in the
hood and return the prop to its
retainer. Let the hood down and
close it firmly.
Page 256 of 406
Black plate (6,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
10-6 Vehicle Care
Engine Compartment Overview
4.3L V6 Engine Shown (4.8L V8 Engine, 5.3L V8 Engine, and 6.0L V8 Engine Similar)