warning CHEVROLET EXPRESS CARGO VAN 2017 1.G Owners Manual
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 205
If parking the rig on a hill:
1. Press the brake pedal, but donot shift into P (Park) yet. Turnthe wheels into the curb iffacing downhill or into traffic iffacing uphill.
2. Have someone place chocksunder the trailer wheels.
3. When the wheel chocks are inplace, release the regularbrakes until the chocks absorbthe load.
4. Reapply the brake pedal. Thenapply the parking brake andshift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brakepedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer isclear of the chocks.
7. Stop and have someone pickup and store the chocks.
Maintenance when Trailer
Towing
The vehicle needs service moreoften when pulling a trailer. SeeMaintenance Schedule0297.Things that are especially importantin trailer operation are automatictransmission fluid, engine oil, axlelubricant, belts, cooling system, andbrake system. It is a good idea toinspect these before and duringthe trip.
Check periodically to see that allhitch nuts and bolts are tight.
Trailer Towing
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
{Warning
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly. For
example, if the trailer is too heavy
or the trailer brakes are
inadequate for the load, the
vehicle may not stop as expected.
The driver and passengers could
be seriously injured. The vehicle
may also be damaged; the
resulting repairs would not be
covered by the vehicle warranty.
Pull a trailer only if all the steps in
this section have been followed.
Ask your dealer for advice and
information about towing a trailer
with the vehicle.
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
212 Driving and Operating
Pressing this button turns on and offthe Tow/Haul Mode.
This indicator light on the instrumentcluster comes on when the Tow/Haul Mode is on.
To w / H a u l i s a f e a t u r e t h a t a s s i s t swhen pulling a heavy trailer or alarge or heavy load. SeeTo w / H a u lMode0187.
To w / H a u l i s d e s i g n e d t o b e m o s teffective when the vehicle andtrailer combined weight is at least75 percent of the vehicle GrossCombined Weight Rating (GCWR).See“Weight of the Trailer”inTr a i l e rTo w i n g0205.Tow/Haulismostuseful under the following drivingconditions:
.When pulling a heavy trailer or alarge or heavy load throughrolling terrain.
.When pulling a heavy trailer or alarge or heavy load instop-and-go traffic.
.When pulling a heavy trailer or alarge or heavy load in busyparking lots where improved lowspeed control of the vehicle isdesired.
Operating the vehicle in Tow/HaulMode when lightly loaded or with notrailer at all will not cause damage.However, there is no benefit to theselection of Tow/Haul when thevehicle is unloaded. Such aselection when unloaded may resultin unpleasant engine andtransmission driving characteristicsand reduced fuel economy. Tow/Haul is recommended only whenpulling a heavy trailer or a large orheavy load.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light)
0102.Adeviceconnectedtothe
DLC—such as an aftermarket
fleet or driver-behavior tracking
device—may interfere with
vehicle systems. This could affect
vehicle operation and cause a
crash. Such devices may also
access information stored in the
vehicle’ssystems.
Page 215 of 346

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
214 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 215California Proposition65 Warning . . . . . . . . . . . . . . . . . 215California PerchlorateMaterials Requirements . . . . . 215Accessories andModifications . . . . . . . . . . . . . . . . 216
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 216Hood . . . . . . . . . . . . . . . . . . . . . . . . . 217Engine CompartmentOverview . . . . . . . . . . . . . . . . . . . . 218Engine Oil . . . . . . . . . . . . . . . . . . . . 219Engine Oil Life System . . . . . . . 221Automatic TransmissionFluid . . . . . . . . . . . . . . . . . . . . . . . . 222Engine Air Cleaner/Filter . . . . . . 225Cooling System . . . . . . . . . . . . . . 226Engine Coolant . . . . . . . . . . . . . . . 227Engine Overheating . . . . . . . . . . 230Engine Fan . . . . . . . . . . . . . . . . . . . 231Power Steering Fluid . . . . . . . . . 232Washer Fluid . . . . . . . . . . . . . . . . . 233Brakes . . . . . . . . . . . . . . . . . . . . . . . 233Brake Fluid . . . . . . . . . . . . . . . . . . . 234
Battery - North America . . . . . . 236Rear Axle . . . . . . . . . . . . . . . . . . . . 236Noise Control System . . . . . . . . 237Starter Switch Check . . . . . . . . . 238Automatic Transmission ShiftLock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 238Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 239Park Brake and P (Park)Mechanism Check . . . . . . . . . . 239Wiper Blade Replacement . . . . 239
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 240
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 240Halogen Bulbs . . . . . . . . . . . . . . . . 240Headlamps . . . . . . . . . . . . . . . . . . . 241Front Turn Signal, Sidemarker,and Parking Lamps . . . . . . . . . 242Ta i l l a m p s . . . . . . . . . . . . . . . . . . . . . 2 4 3Center High-MountedStoplamp (CHMSL) . . . . . . . . . 244License Plate Lamp . . . . . . . . . . 244Replacement Bulbs . . . . . . . . . . . 245
Electrical System
Electrical System Overload . . . 245Fuses and Circuit Breakers . . . 246
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 246Floor Console Fuse Block . . . . 249
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 252All-Season Tires . . . . . . . . . . . . . . 253Winter Tires . . . . . . . . . . . . . . . . . . 253All-Terrain Tires . . . . . . . . . . . . . . . 253Tire Sidewall Labeling . . . . . . . . 254Tire Designations . . . . . . . . . . . . . 256Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 257Tire Pressure . . . . . . . . . . . . . . . . . 260Tire Pressure MonitorSystem . . . . . . . . . . . . . . . . . . . . . . 261Tire Pressure MonitorOperation . . . . . . . . . . . . . . . . . . . 262Tire Inspection . . . . . . . . . . . . . . . . 265Tire Rotation . . . . . . . . . . . . . . . . . 265Dual Tire Rotation . . . . . . . . . . . . 266When It Is Time for NewTires . . . . . . . . . . . . . . . . . . . . . . . . 267Buying New Tires . . . . . . . . . . . . . 268Different Size Tires andWheels . . . . . . . . . . . . . . . . . . . . . . 269Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 270Wheel Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . 271Wheel Replacement . . . . . . . . . . 271
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 215
Tire Chains . . . . . . . . . . . . . . . . . . . 272If a Tire Goes Flat . . . . . . . . . . . . 273Tire Changing . . . . . . . . . . . . . . . . 274Full-Size Spare Tire . . . . . . . . . . 282
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 282
Towing the Vehicle
To w i n g t h e V e h i c l e . . . . . . . . . . . 2 8 6Recreational VehicleTo w i n g . . . . . . . . . . . . . . . . . . . . . . 2 8 6
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 288Interior Care . . . . . . . . . . . . . . . . . . 292Floor Mats . . . . . . . . . . . . . . . . . . . . 295
General Information
For service and parts needs, visityour dealer. You will receivegenuine GM parts and GM-trainedand supported service people.
Genuine GM parts have one ofthese marks:
California Proposition
65 Warning
WARNING:Most motor vehicles,including this one, as well as manyof its service parts and fluids,contain and/or emit chemicalsknown to the State of California to
cause cancer and birth defects orother reproductive harm. Engineexhaust, many parts and systems,many fluids, and some componentwear by-products contain and/oremit these chemicals.
SeeBattery - North America0236andJump Starting - NorthAmerica0282.
California Perchlorate
Materials Requirements
Certain types of automotiveapplications, such as airbaginitiators, safety belt pretensioners,and lithium batteries contained inRemote Keyless Entry transmitters,may contain perchlorate materials.Special handling may be necessary.For additional information, seewww.dtsc.ca.gov/hazardouswaste/perchlorate.
Page 217 of 346

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
216 Vehicle Care
Accessories and
Modifications
Adding non-dealer accessories ormaking modifications to the vehiclecan affect vehicle performance andsafety, including such things asairbags, braking, stability, ride andhandling, emissions systems,aerodynamics, durability, andelectronic systems like antilockbrakes, traction control, and stabilitycontrol. These accessories ormodifications could even causemalfunction or damage not coveredby the vehicle warranty.
Damage to suspension componentscaused by modifying vehicle heightoutside of factory settings will not becovered by the vehicle warranty.
Damage to vehicle componentsresulting from modifications or theinstallation or use of non-GMcertified parts, including controlmodule or software modifications, isnot covered under the terms of thevehicle warranty and may affectremaining warranty coverage foraffected parts.
GM Accessories are designed tocomplement and function with othersystems on the vehicle. See yourdealer to accessorize the vehicleusing genuine GM Accessoriesinstalled by a dealer technician.
Also, seeAdding Equipment to theAirbag-Equipped Vehicle065.
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 servicework, use the proper servicemanual. It tells you much moreabout how to service the vehiclethan this manual can. To order theproper service manual, seeServicePublications OrderingInformation0321.
This vehicle has an airbag system.Before attempting to do your ownservice work, seeServicing theAirbag-Equipped Vehicle065.
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 219
1.Battery - North America0236.
2. Radiator Pressure Cap. SeeCooling System0226.
3. Coolant Recovery Tank. SeeCooling System0226.
4. Automatic Transmission FluidDipstick. See“Checking theFluid Level”underAutomaticTr a n s m i s s i o n F l u i d0222.
5. Engine Oil Fill Cap. See“Whento Add Engine Oil”underEngine Oil0219.
6. Engine Oil Dipstick. See“Checking Engine Oil”underEngine Oil0219.
7.Engine Air Cleaner/Filter0225.
8. Power Steering FluidReservoir. SeePower SteeringFluid0232.
9. Brake Master CylinderReservoir. SeeBrakeFluid0234.
10. Windshield Washer FluidReservoir. See“Adding WasherFluid”underWasherFluid0233.
Engine Oil
For diesel engine vehicles, see“Engine Oil”in the Duramax dieselsupplement.
To e n s u r e p r o p e r e n g i n eperformance and long life, carefulattention must be paid to engine oil.Following these simple, butimportant steps will help protectyour investment:
.Use engine oil approved to theproper specification and of theproper viscosity grade. See“Selecting the Right Engine Oil”in this section.
.Check the engine oil levelregularly and maintain theproper oil level. See“CheckingEngine Oil”and“When to AddEngine Oil”in this section.
.Change the engine oil at theappropriate time. SeeEngine OilLife System0221.
.Always dispose of engine oilproperly. See“What to Do withUsed Oil”in this section.
Checking Engine Oil
Check the engine oil level regularly(every 650 km (400 mi), especiallyprior to a long trip. The engine oildipstick handle is a loop. SeeEngine Compartment Overview0218for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center(DIC) message displays, check theoil level.
Follow these guidelines:
.To g e t a n a c c u r a t e r e a d i n g , p a r kthe vehicle on level ground.Check the engine oil level afterthe engine has been off for atleast two hours. Checking theengine oil level on steep gradesor too soon after engine shutoffcan result in incorrect readings.Accuracy improves when
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 221
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
Use SAE 5W-30 viscosity gradeengine oil.
Cold Temperature Operation: In anarea of extreme cold, where thetemperature falls below✓29 °C(✓20 °F), an SAE 0W-30 oil may beused. An oil of this viscosity gradewill provide easier cold starting forthe engine at extremely lowtemperatures. When selecting an oilof the appropriate viscosity grade, itis recommended to select an oil ofthe correct specification. See“Specification”earlier in this section.
Engine Oil Additives/Engine
Oil Flushes
Do not add anything to the oil. Therecommended oils meeting thedexos1 specification are all that isneeded for good performance andengine protection.
Engine oil system flushes are notrecommended and could causeengine damage not covered by thevehicle warranty.
What to Do with Used Oil
Used engine oil contains certainelements that can be unhealthy foryour skin and could even causecancer. Do not let used oil stay onyour skin for very long. Clean yourskin and nails with soap and water,or a good hand cleaner. Wash orproperly dispose of clothing or ragscontaining used engine oil. See themanufacturer's warnings about theuse and disposal of oil products.
Used oil can be a threat to theenvironment. If you change yourown oil, be sure to drain all the oilfrom the filter before disposal. Neverdispose of oil by putting it in the
trash or pouring it on the ground,into sewers, or into streams orbodies of water. Recycle it by takingit to a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer systemthat indicates when to change theengine oil and filter. This is basedon a combination of factors whichinclude engine revolutions, enginetemperature, and miles driven.Based on driving conditions, themileage at which an oil change isindicated can vary considerably. Forthe oil life system to work properly,the system must be reset every timethe oil is changed.
When the system has calculatedthat oil life has been diminished, itindicates that an oil change isnecessary. A CHANGE ENGINEOIL SOON message comes on. SeeEngine Oil Messages011 4.Change the oil as soon as possiblewithin the next 1 000 km (600 mi).It is possible that, if driving underthe best conditions, the oil life
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
226 Vehicle Care
3. Clean the air cleaner/filtersealing surface andhousing base.
4. Install the engine air cleaner/filter by aligning the arrow onone side of the air cleaner/filterend cap with the arrow on topof the housing base.
5. Install the housing cover byaligning the arrow on top of thecover to the arrow on top of thehousing base, and fasten thetwo retaining clips.
SeeMaintenance Schedule0297todetermine when to replace theengine air cleaner/filter.
{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
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 you are driving.
Cooling System
The cooling system allows theengine to maintain the correctworking temperature.
6.0L V8 Engine Shown, 4.8L
V8 Engine Similar
1. Radiator Pressure Cap
2. Coolant Recovery Tank
3. Engine Cooling Fan (Outof View)
{Warning
An electric engine cooling fan can
start even when the engine is not
running. To avoid injury, always
keep hands, clothing, and tools
away from any engine
cooling fan.
{Warning
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 227
Caution
Using coolant other than
DEX-COOL®can cause
premature engine, heater core,
or radiator corrosion. In addition,
the engine coolant could require
changing sooner. Any repairs
would not be covered by the
vehicle warranty. Always use
DEX-COOL (silicate-free) coolant
in the vehicle.
Engine Coolant
The cooling system in the vehicle isfilled with DEX-COOL®enginecoolant. This coolant is designed toremain in the vehicle for 5 years or240 000 km (150,000 mi), whicheveroccurs first.
The following explains the coolingsystem and how to check and addcoolant when it is low. If there is aproblem with engine overheating,seeEngine Overheating0230.
What to Use
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or others
could be burned. Use a 50/
50 mixture of clean, drinkable
water and DEX-COOL coolant.
Use a 50/50 mixture of clean,drinkable water and DEX-COOLcoolant. If using this mixture,nothing else needs to be added.This mixture:
.Gives freezing protection downto✓37 °C (✓34 °F), outsidetemperature.
.Gives boiling protection up to129 °C (265 °F), enginetemperature.
.Protects against rust andcorrosion.
.Will not damage aluminum parts.
.Helps keep the proper enginetemperature.
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants0305.
Never dispose of engine coolant byputting it in the trash, pouring it onthe ground, or into sewers, streams,
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
228 Vehicle Care
or bodies of water. Have the coolantchanged by an authorized servicecenter, familiar with legalrequirements regarding usedcoolant disposal. This will helpprotect the environment and yourhealth.
Checking Coolant
The vehicle must be on a levelsurface when checking the coolantlevel.
Check to see if coolant is visible inthe coolant recovery tank. If thecoolant inside the coolant recoverytank is boiling, do not do anythingelse until it cools down. If coolant isvisible but the coolant level is not ator above the COLD FILL mark, adda50/50mixtureofclean,drinkablewater and DEX-COOL coolant at thecoolant recovery tank, but be surethe cooling system is cool beforethis is done.
The coolant recovery tank cap hasthis symbol on it.
When the engine is cold, the coolantlevel should be at or above theCOLD FILL mark. If it is not, therecould be a leak in the coolingsystem.
If the coolant is low, add the coolantor take the vehicle to a dealer forservice.
How to Add Coolant to the
Recovery Tank for Gasoline
Engines
{Warning
Yo u c a n b e b u r n e d i f y o u s p i l l
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
Caution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
If coolant is needed, add the properDEX-COOL coolant mixture at thecoolant recovery tank.
How to Add Coolant to the
Radiator
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.