2017 CHEVROLET EXPRESS CARGO VAN overheating

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

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,

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
230 Vehicle Care
6. Start the engine and let it rununtil the upper radiator hosecan be felt getting hot. Watchout for the engine cooling fan.
7. By this time, the coolant levelinside the radiator filler neckmay be lower. If the level islower, add more of the properDEX-COOL coolant mixturethrough the filler neck until thelevel reaches the base of thefiller neck.
8. Replace the pressure cap. Atany time during this procedureif coolant begins to flow out ofthe filler neck, reinstall thepressure cap.
Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
The vehicle has an indicator to warnof engine overheating.
There is an engine coolanttemperature gauge on the vehicle'sinstrument cluster. SeeEngineCoolant Temperature Gauge098.
If the decision is made not to lift thehood when this warning appears,but instead get service help rightaway, seeRoadside AssistanceProgram0316.
If the decision is made to lift thehood, make sure the vehicle isparked on a level surface.
Then check to see if the enginecooling fans are running. If theengine is overheating, the fanshould be running. If it is not, do notcontinue to run the engine and havethe vehicle serviced.
See if the engine cooling fan speedincreases when idle speed isdoubled by pushing the acceleratorpedal down. If it does not, thevehicle needs service. Turn off theengine.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
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
Limits0171.
(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
asuddenimpact—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-9967827) - 2017 - crc - 5/2/16
260 Vehicle Care
Vehicle Capacity Weight:The
number of designated seating
positions multiplied by
68 kg (150 lb) plus the rated
cargo load. SeeVehicle Load
Limits0171.
Vehicle Maximum Load on the
Tire:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard:Alabel
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See“Tire and Loading
Information Label”underVehicle
Load Limits0171.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
(Continued)
Caution (Continued)
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity.
For additional information
regarding how much weight the
vehicle can carry, and an
example of the Tire and Loading
Information label, seeVehicle
Load Limits0171.Howthe
vehicle is loaded affects vehicle
handling and ride comfort. Never

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Index 339
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 199
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 212
Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 246
Floor Console Fuse Block . . . . 249
Fuses and Circuit Breakers . . . 246
Overload . . . . . . . . . . . . . . . . . . . . . 245
Emergency
OnStar®...................... 327
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 225
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 102
Compartment Overview . . . . . . . 218
Coolant . . . . . . . . . . . . . . . . . . . . . . . 227
Coolant Temperature Gauge . . . . 98
Cooling System . . . . . . . . . . . . . . . 226
Cooling System Messages . . . .113
Drive Belt Routing . . . . . . . . . . . . .311
Exhaust . . . . . . . . . . . . . . . . . . . . . . 182
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Heater . . . . . . . . . . . . . . . . . . . . . . . . 179
Oil Life System . . . . . . . . . . . . . . . 221
Oil Messages . . . . . . . . . . . . . . . . . .114
Oil Pressure Gauge . . . . . . . . . . . . 97
Engine (cont'd)
Oil Pressure Light . . . . . . . . . . . . 106
Overheating . . . . . . . . . . . . . . . . . . 230
Power Messages . . . . . . . . . . . . . .114
Running While Parked . . . . . . . . 183
Starting . . . . . . . . . . . . . . . . . . . . . . . 177
Enhanced Technology Glass . . . . 38
Entry/Exit Lighting . . . . . . . . . . . . . . 130
Equipment, Towing . . . . . . . . . . . . . 210
Event Data Recorders . . . . . . . . . . 324
Extender, Safety Belt . . . . . . . . . . . . 53
Exterior Lamp Controls . . . . . . . . . 125
Exterior Lamps Off Reminder . . . 126
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 231
Fast Idle System . . . . . . . . . . . . . . . . 178
Filter,
Engine Air Cleaner . . . . . . . . . . . 225
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 126
Flashers, Hazard Warning . . . . . . 128
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 273
Changing . . . . . . . . . . . . . . . . . . . . . 274
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 295
Fluid
Automatic Transmission . . . . . . 222
Fluid (cont'd)
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 234
Power Steering . . . . . . . . . . . . . . . 232
Washer . . . . . . . . . . . . . . . . . . . . . . . 233
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 322
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 41
Front Storage . . . . . . . . . . . . . . . . . . . . 85
Front Turn Signal
Bulb Replacement . . . . . . . . . . . . 242
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Additives . . . . . . . . . . . . . . . . . . . . . 199
Economy Driving . . . . . . . . . . . . . . . 22
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 202
Filling the Tank . . . . . . . . . . . . . . . 200
Foreign Countries . . . . . . . . . . . . 199
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Fuel Warning Light . . . . . . . 107
Requirements, California . . . . . 199
System Messages . . . . . . . . . . . . .115
Full-Size Spare Tire . . . . . . . . . . . . 282
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 246
Floor Console Fuse Block . . . . 249
Fuses and Circuit Breakers . . . 246

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
342 Index
Mirrors, Interior Rearview . . . . . . . . 36
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 261
Multi-band Antenna . . . . . . . . . . . . . 141
N
Navigation
OnStar®...................... 328
New Vehicle Break-In . . . . . . . . . . . 175
Noise Control System . . . . . . . . . . 237
O
Object Detection System
Messages . . . . . . . . . . . . . . . . . . . . . 115
Odometer . . . . . . . . . . . . . . . . . . . . . . . . 96
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . 167
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 219
Engine Oil Life System . . . . . . . 221
Engine Oil Pressure Gauge . . . . . 97
Messages . . . . . . . . . . . . . . . . . . . . .114
Pressure Light . . . . . . . . . . . . . . . . 106
Older Children, Restraints . . . . . . . 66
Online Owner Center . . . . . . . . . . . 315
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 325
OnStar System . . . . . . . . . . . . . . . . . 150
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . . 331
OnStar®Connections . . . . . . . . . . . 328
OnStar®Diagnostics . . . . . . . . . . . . 330
OnStar®Emergency . . . . . . . . . . . . 327
OnStar®Navigation . . . . . . . . . . . . . 328
OnStar®Overview . . . . . . . . . . . . . . 326
OnStar®Security . . . . . . . . . . . . . . . 327
Operation
Infotainment System . . . . . . . . . . 136
Ordering
Service Publications . . . . . . . . . . 321
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Overheating, Engine . . . . . . . . . . . . 230
Overview . . . . . . . . . . . . . . . . . . 133, 135
P
Park
Shifting Into . . . . . . . . . . . . . . . . . . . 180
Shifting Out of . . . . . . . . . . . . . . . . 181
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 189
Brake and P (Park)
Mechanism Check . . . . . . . . . . 239
Over Things That Burn . . . . . . . 182
Parking Assist . . . . . . . . . . . . . . . . . . 197
Perchlorate Materials
Requirements, California . . . . . . 215
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 119
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 151
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . 29
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 93
Protection, Battery . . . . . . . . . . . . 131
Retained Accessory (RAP) . . . 180
Seat Adjustment . . . . . . . . . . . . . . . . 41
Steering Fluid . . . . . . . . . . . . . . . . . 232
Windows . . . . . . . . . . . . . . . . . . . . . . . 37
Pregnancy, Using Safety Belts . . . 53
Privacy
Vehicle Data Recording . . . . . . . 324
Program
Courtesy Transportation . . . . . . 318
Proposition
65 Warning,
California . . . . . . . . . . . .215, 236, 282
R
Radio Frequency Statement . . . . 322
Radio Reception . . . . . . . . . . . . . . . . 140
Radios
AM-FM Radio . . . . . . . . . . . . . . . . . 138
Satellite . . . . . . . . . . . . . . . . . . . . . . . 139
Reading Lamps . . . . . . . . . . . . . . . . . 130