heater CHEVROLET EXPRESS 2020 Get To Know Guide

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
150 Driving and Operating
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . 151
Distracted Driving . . . . . . . . . . . . 151
Defensive Driving . . . . . . . . . . . . . 152
Drunk Driving . . . . . . . . . . . . . . . . . 152
Control of a Vehicle . . . . . . . . . . . 153
Braking . . . . . . . . . . . . . . . . . . . . . . . 153
Steering . . . . . . . . . . . . . . . . . . . . . . 153
Off-Road Recovery . . . . . . . . . . . 154
Loss of Control . . . . . . . . . . . . . . . 154
Driving on Wet Roads . . . . . . . . 155
Hill and Mountain Roads . . . . . 156
Winter Driving . . . . . . . . . . . . . . . . 156
If the Vehicle Is Stuck . . . . . . . . 158
Vehicle Load Limits . . . . . . . . . . . 158
Starting and Operating
New Vehicle Break-In . . . . . . . . . 162
Ignition Positions . . . . . . . . . . . . . 163
Starting the Engine . . . . . . . . . . . 165
Fast Idle System . . . . . . . . . . . . . 166
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . 167
Engine Coolant Heater . . . . . . . 167 Shifting Into Park . . . . . . . . . . . . . 169
Shifting out of Park . . . . . . . . . . . 170
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 170
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 170
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 171
Automatic Transmission
Automatic Transmission . . . . . . 171
Manual Mode . . . . . . . . . . . . . . . . . 174
Tow/Haul Mode . . . . . . . . . . . . . . . 175
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 176
Parking Brake . . . . . . . . . . . . . . . . 177
Brake Assist . . . . . . . . . . . . . . . . . . 177
Hill Start Assist (HSA) . . . . . . . . 177
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 178
Locking Rear Axle . . . . . . . . . . . . 180
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 180
Driver Assistance Systems
Driver Assistance Systems . . . 182 Rear Vision Camera (RVC) . . . 184
Park Assist . . . . . . . . . . . . . . . . . . . 185
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . 186
Side Blind Zone
Alert (SBZA) . . . . . . . . . . . . . . . . 188
Lane Departure Warning (LDW) . . . . . . . . . . . . . 190
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 191
Recommended Fuel . . . . . . . . . . 192
Prohibited Fuels . . . . . . . . . . . . . . 192
Fuels in Foreign Countries . . . 192
Fuel Additives . . . . . . . . . . . . . . . . 192
E85 or FlexFuel . . . . . . . . . . . . . . 193
Filling the Tank . . . . . . . . . . . . . . . 194
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 195
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 196
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 196
Trailer Towing . . . . . . . . . . . . . . . . 201
Towing Equipment . . . . . . . . . . . . 208
Trailer Sway Control (TSC) . . . 211

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Driving and Operating 167
.Pressing the accelerator more
than one-quarter of the
way down.
. Turning the ignition off.
Retained Accessory
Power (RAP)
These vehicle accessories can be
used for up to 10 minutes after the
engine is turned off:
.Audio System
. Power Windows (if equipped)
These features will work when the
ignition is on or in ACC/
ACCESSORY. Once the ignition is
turned from on to off, power to the
radio and power windows will
continue to work for 10 minutes or
until the driver door is opened.
Engine Coolant Heater
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
{Warning
Do not plug in the engine block
heater while the vehicle is parked
in a garage or under a carport.
Property damage or personal
injury may result. Always park the
vehicle in a clear open area away
from buildings or structures.
The engine coolant heater can
provide easier starting and better
fuel economy during engine
warm-up in cold weather conditions
at or below −18 °C (0 °F). Vehicles
with an engine coolant heater
should be plugged in at least four
hours before starting. An internal
thermostat in the plug end of the
cord may exist which will prevent
engine coolant heater operation at
temperatures above −18 °C (0 °F).
To Use the Engine Coolant
Heater
1. Turn off the engine.
4.3L V6 Engine
6.0L V8 Engine
4. Open the hood and unwrap the electrical cord.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
168 Driving and Operating
For V6 engines, the cord for
the engine coolant heater is on
the driver side of the engine
compartment.
For V8 engines, the cord for
the engine coolant heater is
behind the engine air cleaner/
filter.
Check the heater cord for
damage. If it is damaged, do
not use it. See your dealer for
a replacement. Inspect the
cord for damage yearly.
5. Plug it into a normal, grounded 110-volt AC outlet.
{Warning
Improper use of the heater cord
or an extension cord can damage
the cord and may result in
overheating and fire.
. Plug the cord into a
three-prong electrical utility
receptacle that is protected
by a ground fault detection
(Continued)
Warning (Continued)
function. An ungrounded
outlet could cause an
electric shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension
cord in good operating
condition, or using a
damaged heater or
extension cord, could make
it overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
(Continued)
Warning (Continued)
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
6. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it
away from moving engine parts
and prevent damage.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Vehicle Care 231
4.3L V6 Engine
1. Radiator Pressure Cap
2. Coolant Recovery Tank
3. Engine Cooling Fan (Outof View)
6.0L V8 Engine
1. Radiator Pressure Cap
2. Coolant Recovery Tank
3. Engine Cooling Fan (Outof View)
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{Warning
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL engine
coolant. This coolant is designed to
remain in the vehicle for 5 years or
240 000 km (150,000 mi), whichever
occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating 0235.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
236 Vehicle Care
If No Steam is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer. See “Driving on
Grades” underTrailer Towing
0 201.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral) and let the
engine idle. If the engine coolant temperature
gauge is no longer in the overheat
zone or an overheat warning no
longer displays, the vehicle can be
driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a
safe vehicle distance from the
vehicle in front. If the warning does
not come back on, continue to drive
normally and have the cooling
system checked for proper fill and
function.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is still no sign of steam,
push down the accelerator until the
engine speed is about twice as fast
as normal idle speed for at least
three minutes while parked. If the
warning is still on, turn off the
engine until it cools down.
If the decision is made not to lift the
hood, get service help right away.
Engine Fan
The vehicle has a clutched engine
cooling fan. When the clutch is
engaged, the fan spins faster to
provide more air to cool the engine.
In most everyday driving conditions,
the fan is spinning slower and the
clutch is not fully engaged. This
improves fuel economy and reduces
fan noise. Under heavy vehicle
loading, trailer towing, and/or high
outside temperatures, the fan speed
increases as the clutch more fully
engages, so an increase in fan
noise may be heard. This is normal
and should not be mistaken as the
transmission slipping or making
extra shifts. It is merely the cooling
system functioning properly. The fan
will slow down when additional
cooling is not required and the
clutch partially disengages.
This fan noise may be heard when
starting the engine. It will go away
as the fan clutch partially
disengages.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
242 Vehicle Care
The following information relates to
compliance with federal noise
emission standards for vehicles with
a Gross Vehicle Weight Rating
(GVWR) of more than 4 536 kg
(10,000 lb). The Maintenance
Schedule provides information on
maintaining the noise control system
to minimize degradation of the noise
emission control system during the
life of the vehicle. The noise control
system warranty is given in the
warranty manual.
These standards apply only to
vehicles sold in the United States.
TAMPERING WITH NOISE
CONTROL SYSTEM
PROHIBITED
Federal law prohibits the following
acts or the causing thereof:1. The removal or rendering inoperative by any person,
other than for purposes of
maintenance, repair,
or replacement, of any device
or element of design
incorporated into any new
vehicle for the purpose of noise control prior to its sale or
delivery to the ultimate
purchaser or while it is in
use; or
2. The use of the vehicle after such device or element of
design has been removed or
rendered inoperative by any
person.
Among those acts presumed to
constitute tampering are the acts
listed below.
Insulation:
Removal of the noise shields or any
underhood insulation.
Engine:
Removal or rendering the engine
speed governor, if equipped,
inoperative so as to allow engine
speed to exceed manufacturer
specifications.
Fan and Drive:
. Removal of the fan clutch,
if equipped, or rendering the
clutch inoperative. .
Removal of the fan shroud,
if equipped.
Air Intake:
. Removal of the air cleaner
silencer.
. Modification of the air cleaner.
Exhaust:
. Removal of the muffler and/or
resonator.
. Removal of the exhaust pipes
and exhaust pipe clamps.
Fuel Operated Heater (FOH) -
Diesel Engine:
. Removal of the muffler.Starter Switch Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
252 Vehicle Care
FusesUsage
66 Daytime running lamps 2
67 Daytime running lamps 1
68 Auxiliary stoplamps
69 External power for trailer
70 Upfitter stoplamps
71 Fuel heater/ FlexFuel sensor
72 Body control module 6
73 Lighter/Data link connector
74 Front blower
75 Engine control module
76 –
77 O2 sensor 1
78 Engine control module, powertrain
signal 1 Fuses
Usage
79 Ignition coils/ injectors - even
Relays Usage
15 Run/Crank
37 –
38 Fuel pump
39 Crank
40 A/C compressor
48 –
49 Powertrain
50 –
57 –
60 – Auxiliary Fuse Block
This component is near the fuse
block in the engine compartment
Fuses Usage
MR-1 Upfitter 1
MR-2 Upfitter 2
MR-3 Upfitter power control
Relays Usage
MR Rel 1 Upfitter 1
MR Rel 2 Upfitter 2

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Index 347
Driving (cont'd)Loss of Control . . . . . . . . . . . . . . . 154
Off-Road Recovery . . . . . . . . . . . 154
Vehicle Load Limits . . . . . . . . . . . 158
Wet Roads . . . . . . . . . . . . . . . . . . . 155
Winter . . . . . . . . . . . . . . . . . . . . . . . . 156
Dual Tire
Rotation . . . . . . . . . . . . . . . . . . . . . . 270
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 193
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 213
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 249
Floor Console Fuse Block . . . . 253
Fuses and Circuit Breakers . . . 249
Overload . . . . . . . . . . . . . . . . . . . . . 248
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 336
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 229
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . 93
Compartment Overview . . . . . . . 218
Coolant Heater . . . . . . . . . . . . . . . 167
Coolant Temperature Gauge . . . . 89 Engine (cont'd)
Cooling System . . . . . . . . . . . . . . . 230
Drive Belt Routing . . . . . . . . . . . . 320
Exhaust . . . . . . . . . . . . . . . . . . . . . . 170
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Oil Life System . . . . . . . . . . . . . . . 224
Oil Pressure Gauge . . . . . . . . . . . . 88
Oil Pressure Light . . . . . . . . . . . . . . 97
Overheating . . . . . . . . . . . . . . . . . . 235
Power Messages . . . . . . . . . . . . . 104
Running While Parked . . . . . . . . 171
Starting . . . . . . . . . . . . . . . . . . . . . . . 165
Enhanced Technology Glass . . . . 24
Entry Lighting . . . . . . . . . . . . . . . . . . . 115
Entry/Exit Lighting . . . . . . . . . . . . . . 115
Equipment, Towing . . . . . . . . . . . . . 208
Event Data Recorders . . . . . . . . . . 333
Exit Lighting . . . . . . . . . . . . . . . . . . . . 115
Extender, Seat Belt . . . . . . . . . . . . . . 42
Exterior Lamp Controls . . . . . . . . . 110
Exterior Lamps Off Reminder . . . 111
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 116
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 236
Fast Idle System . . . . . . . . . . . . . . . . 166 Filter,
Engine Air Cleaner . . . . . . . . . . . 229
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 111
Flashers, Hazard Warning . . . . . . 113
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 276 Changing . . . . . . . . . . . . . . . . . . . . . 278
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 302
Fluid Automatic
Transmission . . . . . . . . . . . 225, 228
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 239
Power Steering . . . . . . . . . . . . . . . 237
Washer . . . . . . . . . . . . . . . . . . . . . . . 237
Folding Mirrors . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 186
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 331
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 27
Front Storage . . . . . . . . . . . . . . . . . . . . 76
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 245
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 192
Economy, Driving for Better . . . 151

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
348 Index
Fuel (cont'd)Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 195
Filling the Tank . . . . . . . . . . . . . . . 194
Foreign Countries . . . . . . . . . . . . 192
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Low Fuel Warning Light . . . . . . . . . 98
Prohibited Fuels . . . . . . . . . . . . . . 192
Recommended . . . . . . . . . . . . . . . 192
Top Tier . . . . . . . . . . . . . . . . . . . . . . 191
Full-Size Spare Tire . . . . . . . . . . . . 287
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 249
Floor Console Fuse Block . . . . 253
Fuses and Circuit Breakers . . . 249
G
Gauges Engine Coolant Temperature . . . 89
Engine Oil Pressure . . . . . . . . . . . . 88
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Odometer . . . . . . . . . . . . . . . . . . . . . . . 87
Speedometer . . . . . . . . . . . . . . . . . . . 87
Trip Odometer . . . . . . . . . . . . . . . . . . 87
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . 90
Warning Lights andIndicators . . . . . . . . . . . . . . . . . . . . . 85 General Information
Service and Maintenance . . . . . 303
Towing . . . . . . . . . . . . . . . . . . . . . . . . 196
Vehicle Care . . . . . . . . . . . . . . . . . . 215
Glass, Enhanced Technology . . . . 24
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 325
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 245
Hazard Warning Flashers . . . . . . . 113
Head Restraints . . . . . . . . . . . . . . . . . 27
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 245
Automatic . . . . . . . . . . . . . . . . . . . . . .112
Bulb Replacement . . . . . . . . . . . . 245
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . .112
Flash-to-Pass . . . . . . . . . . . . . . . . . . 111
High-Beam On Light . . . . . . . . . . . . 98
High/Low Beam Changer . . . . . . 111
Heated Mirrors . . . . . . . . . . . . . . . . . . . 22
Heater Engine Coolant . . . . . . . . . . . . . . . 167
Heating . . . . . . . . . . . . . . . . . . . . 144, 146
High-Beam On Light . . . . . . . . . . . . . 98
Hill and Mountain Roads . . . . . . . . 156
Hill Start Assist (HSA) . . . . . . . . . . 177 Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 34
HVAC . . . . . . . . . . . . . . . . . . . . . . 144, 146
I
Idle System Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Ignition Positions . . . . . . . . . . . . . . . 163
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 243
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 20
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . . . 96
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 57
Information Publication Ordering . . . . . . . . . . 330
Infotainment . . . . . . . . . . . . . . . . . . . . 117
Infotainment System . . . . . . . . . . . . 334
Instrument Cluster . . . . . . . . . . . . . . . 86
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 22
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 288