2017 CHEVROLET EXPRESS CARGO VAN coolant temperature

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.

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
Vehicle Care 231
If Steam is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
If No Steam is Coming from
the Engine Compartment
If an engine overheat warning isdisplayed but no steam can be seenor heard, the problem may not be
too serious. Sometimes the enginecan get a little too hot when thevehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
.To w s a t r a i l e r . S e e“Driving onGrades”underTr a i l e rTo w i n g0205.
If the overheat warning is displayedwith no sign of steam:
1. Turn the air off.
2. Turn the heater on to thehighest temperature and to thehighest fan speed. Open thewindows as necessary.
3. When it is safe to do so, pull offthe road, shift to P (Park) orN(Neutral) and let theengine idle.
If the engine coolant temperaturegauge is no longer in the overheatzone or an overheat warning nolonger displays, the vehicle can bedriven. Continue to drive the vehicleslowly for about 10 minutes. Keep asafe vehicle distance from the
vehicle in front. If the warning doesnot come back on, continue to drivenormally and have the coolingsystem checked for proper fill andfunction.
If the warning continues, pull over,stop, and park the vehicleright away.
If there is still no sign of steam,push down the accelerator until theengine speed is about twice as fastas normal idle speed for at leastthree minutes while parked. If thewarning is still on, turn off theengine until it cools down.
If the decision is made not to lift thehood, get service help right away.
Engine Fan
The vehicle has a clutched enginecooling fan. When the clutch isengaged, the fan spins faster toprovide more air to cool the engine.In most everyday driving conditions,the fan is spinning slower and theclutch is not fully engaged. Thisimproves fuel economy and reducesfan noise. Under heavy vehicleloading, trailer towing, and/or high

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 233
Washer Fluid
What to Use
When the vehicle needs windshieldwasher fluid, be sure to read themanufacturer's instructions beforeuse. If operating the vehicle in anarea where the temperature may fallbelow freezing, use a fluid that hassufficient protection againstfreezing.
Adding Washer Fluid
Open the cap with the washersymbol on it. Add washer fluid untilthe tank is full. SeeEngineCompartment Overview0218forreservoir location.
Caution
.Do not use washer fluid thatcontains any type of waterrepellent coating. This cancause the wiper blades tochatter or skip.
.Do not use engine coolant(antifreeze) in thewindshield washer. It candamage the windshieldwasher system and paint.
.Do not mix water withready-to-use washer fluid.Water can cause thesolution to freeze anddamage the washer fluidtank and other parts of thewasher system.
.When using concentratedwasher fluid, follow themanufacturer instructions foradding water.
.Fill the washer fluid tankonly three-quarters full whenit is very cold. This allowsfor fluid expansion if
(Continued)
Caution (Continued)
freezing occurs, which coulddamage the tank if it iscompletely full.
Brakes
Disc brake pads have built-in wearindicators that make a high-pitchedwarning sound when the brake padsare worn and new pads are needed.The sound can come and go or canbe heard all the time when thevehicle is moving, except whenapplying the brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
acrash.Whenthebrakewear
warning sound is heard, have the
vehicle serviced.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
338 Index
Climate Control Systems (cont'd)
Air Conditioning . . . . . . . . . . . . . . 158
Heating . . . . . . . . . . . . . . . . . . . . . . . 158
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Rear Heating System . . . . . . . . . 160
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Cluster, Instrument . . . . . . . . . . . . . . 95
Collision Damage Repair . . . . . . . 319
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 85
Compass . . . . . . . . . . . . . . . . . . . . . . . . 90
Messages . . . . . . . . . . . . . . . . . . . . .113
Connections
OnStar®...................... 328
Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 190
Control of a Vehicle . . . . . . . . . . . . . 166
Convex Mirrors . . . . . . . . . . . . . . . . . . 35
Coolant
Engine . . . . . . . . . . . . . . . . . . . . . . . . 227
Engine Temperature Gauge . . . . 98
Cooling System . . . . . . . . . . . . . . . . . 226
Engine Messages . . . . . . . . . . . . .113
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 318
Cruise Control . . . . . . . . . . . . . . . . . . 192
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Customer Assistance . . . . . . . . . . . 315
Offices . . . . . . . . . . . . . . . . . . . . . . . . 314
Te x t Te l e p h o n e ( T T Y )
Users . . . . . . . . . . . . . . . . . . . . . . . 315
Customer Information
Service Publications
Ordering Information . . . . . . . . 321
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 312
D
Damage Repair, Collision . . . . . . . 319
Danger, Warning, and Caution . . . . 3
Data Collection
Infotainment System . . . . . . . . . . 325
OnStar . . . . . . . . . . . . . . . . . . . . . . . 325
Data Recorders, Event . . . . . . . . . 324
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 126
Defensive Driving . . . . . . . . . . . . . . . 165
Delayed Locking . . . . . . . . . . . . . . . . . 29
Devices
Auxiliary . . . . . . . . . . . . . . . . . . . . . . 146
Diagnostics
OnStar®...................... 330
Distracted Driving . . . . . . . . . . . . . . . 165
Dome Lamps . . . . . . . . . . . . . . . . . . . 129
Door
Ajar Messages . . . . . . . . . . . . . . . .113
Door (cont'd)
Cargo Door Relocking . . . . . . . . . . 29
Delayed Locking . . . . . . . . . . . . . . . . 29
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Power Locks . . . . . . . . . . . . . . . . . . . . 29
Rear Doors . . . . . . . . . . . . . . . . . . . . . 32
Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sliding . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Drive Belt Routing, Engine . . . . . . 311
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 108
Driving
Characteristics and
To w i n g T i p s . . . . . . . . . . . . . . . . . 2 0 2
Defensive . . . . . . . . . . . . . . . . . . . . . 165
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 166
For Better Fuel Economy . . . . . . . 22
Hill and Mountain Roads . . . . . . 169
If the Vehicle is Stuck . . . . . . . . . 171
Loss of Control . . . . . . . . . . . . . . . 167
Off-Road Recovery . . . . . . . . . . . 167
Vehicle Load Limits . . . . . . . . . . . 171
Wet Roads . . . . . . . . . . . . . . . . . . . 168
Winter . . . . . . . . . . . . . . . . . . . . . . . . 169
Dual Tire
Rotation . . . . . . . . . . . . . . . . . . . . . . 266

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
340 Index
G
Gauges
Engine Coolant Temperature . . . 98
Engine Oil Pressure . . . . . . . . . . . . 97
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Odometer . . . . . . . . . . . . . . . . . . . . . . . 96
Speedometer . . . . . . . . . . . . . . . . . . . 96
Trip Odometer . . . . . . . . . . . . . . . . . . 96
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . 99
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . 94
General Information
Service and Maintenance . . . . . 296
To w i n g . . . . . . . . . . . . . . . . . . . . . . . . 2 0 2
Vehicle Care . . . . . . . . . . . . . . . . . . 215
Glass, Enhanced Technology . . . . 38
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 316
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 240
Hazard Warning Flashers . . . . . . . 128
Head Restraints . . . . . . . . . . . . . . . . . 41
Headlamps . . . . . . . . . . . . . . . . . . . . . 241
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 240
Automatic . . . . . . . . . . . . . . . . . . . . . 127
Bulb Replacement . . . . . . . . . . . . 240
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 126
Headlamps (cont'd)
Flash-to-Pass . . . . . . . . . . . . . . . . . 126
High-Beam On Light . . . . . . . . . . 107
High/Low Beam Changer . . . . . 126
Heated Mirrors . . . . . . . . . . . . . . . . . . . 36
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 179
Heating and Air Conditioning . . . 158
High-Beam On Light . . . . . . . . . . . . 107
Hill and Mountain Roads . . . . . . . . 169
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 47
I
Idle System
Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Ignition Positions . . . . . . . . . . . . . . . 176
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . . . 239
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 33
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 68
Infotainment . . . . . . . . . . . . . . . . . . . . 132
Infotainment System . . . . . . . . . . . . 325
Instrument Cluster . . . . . . . . . . . . . . . 95
Interior Rearview Mirrors . . . . . . . . . 36
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 282
K
Key and Lock Messages . . . . . . . . 115
Keyless Entry
Remote (RKE) System . . . . . . . . . 25
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
L
Labeling, Tire Sidewall . . . . . . . . . . 254
Lamps
Daytime Running (DRL) . . . . . . 126
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 129
Exterior Controls . . . . . . . . . . . . . . 125
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 126
License Plate . . . . . . . . . . . . . . . . . 244
Malfunction Indicator . . . . . . . . . 102
Messages . . . . . . . . . . . . . . . . . . . . .115
Reading . . . . . . . . . . . . . . . . . . . . . . 130
Ta i l l a m p s . . . . . . . . . . . . . . . . . . . . . 2 4 3
Lamps, Bulb Replacement . . . . . . 242
Lap-Shoulder Belt . . . . . . . . . . . . . . . 48
LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . 79