2020 CHEVROLET EXPRESS cooling

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Vehicle Care 275
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or
corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and
wheel nuts should be replaced.
If the wheel leaks air, replace it.
Some aluminum wheels can be
repaired. See your dealer if any of
these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the
same load-carrying capacity,
diameter, width, offset, and be
mounted the same way as the one it
replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor
System (TPMS) sensors with new
GM original equipment parts.{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts can be dangerous. It could
affect the braking and handling of
the vehicle. Tires can lose air,
and cause loss of control, causing
a crash. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel.
Tire Chains
{Warning
Tire chains used on a vehicle
without the proper amount of
clearance can cause damage to
the brakes, suspension, or other
vehicle parts. The area damaged
by the tire chains could cause you
to lose control of the vehicle and
you or others may be injured in a
crash. To help avoid damage to(Continued)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Service and Maintenance 305
Maintenance
Schedule
Owner Checks and Services
Check the engine oil level. See
Engine Oil0222.
Once a Month
. Check the tire inflation
pressures, including the spare.
See Tire Pressure 0263.
. Inspect the tires for wear. See
Tire Inspection 0268.
. Check the windshield washer
fluid level. See Washer Fluid
0 237.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km (600 mi). If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and
filter must be changed at least once
a year and the oil life system must be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km (3,000 mi) since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System 0224.
Extended Idle Use
When the vehicle is used in a way
that requires extended idle time,
one hour of use shall be deemed
the same as 53 km (33 mi). See
Driver Information Center (DIC) 099
for hourmeter.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years.
This service requires replacement of
the desiccant to help the longevity
and efficient operation of the air
conditioning system. This service
can be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km
(7,500 mi)
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0268.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0222 and
Engine Oil Life System 0224.
. Check engine coolant level. See
Cooling System 0230.
. Check windshield washer fluid
level. See Washer Fluid 0237.
. Check tire inflation pressures,
including the spare. See Tire
Pressure 0263.
. Inspect tire wear. See Tire
Inspection 0268.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 229.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Service and Maintenance 307
Maintenance Schedule
Additional Required
Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Lubricate the steering linkage.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Inspect evaporative control system. (1)@ @@
Replace engine air cleaner filter. (2)@@@
Replace spark plugs. Inspect spark plug wires
and/or boots.@
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Replace windshield wiper blades. (6)
@ @ @ @ @ @ @ @ @ @
Replace air conditioning desiccant. (7)
Footnotes—Maintenance
Schedule Additional Required
Services - Normal
(1) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition. (2)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0229. (3)
Or every five years, whichever
comes first. See Cooling System
0 230.
(4) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Service and Maintenance 309
Maintenance Schedule
Additional Required
Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Lubricate the steering linkage.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Inspect evaporative control system. (1)@ @@
Replace engine air cleaner filter. (2)@@@
Change automatic transmission fluid and filter.@@@
Replace spark plugs. Inspect spark plug wires
and/or boots.@
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Replace windshield wiper blades. (6)
@ @ @ @ @ @ @ @ @ @
Replace air conditioning desiccant. (7)
Footnotes—Maintenance
Schedule Additional Required
Services - Severe
(1) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition. (2)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0229. (3)
Or every five years, whichever
comes first. See Cooling System
0 230.
(4) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Service and Maintenance 313
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see the
maintenance schedule section in the Duramax diesel supplement.
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission (6-Speed Transmission) DEXRON-VI Automatic Transmission Fluid.
Automatic Transmission (8-Speed Transmission) DEXRON-HP Automatic Transmission Fluid.
Chassis Lubrication, Parking Brake Cable Guides Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. SeeCooling System 0230.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 222.
Front Wheel Bearings Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB (GM Part No. 1051344, in Canada 993037).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
318 Technical Data
Vehicle Data
Capacities and Specifications
If the vehicle has a diesel engine, see the Duramax diesel supplement for more information.
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0313 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge amount, see the refrigerant label located under thehood. See your dealer for more information.
Engine Cooling System without Rear Heat* 4.3L V6 10.1 L 10.7 qt
6.0L V8 13.1 L 13.8 qt
Engine Cooling System with Rear Heat* 4.3L V6 12.4 L 13.1 qt
6.0L V8 16.1 L 17.0 qt
*Engine cooling system capacity values are based on the entire cooling system and its components.
Engine Oil with Filter 5.7 L 6.0 qt
Fuel Tank Cutaway (Optional Tank)* 215.7 L 57.0 gal

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
346 Index
Cigarette Lighter . . . . . . . . . . . . . . . . . 84
Circuit Breakers . . . . . . . . . . . . . . . . 249
CleaningExterior Care . . . . . . . . . . . . . . . . . 294
Interior Care . . . . . . . . . . . . . . . . . . 299
Climate Control Systems . . . . . . . 144 Air Conditioning . . . . . . . . . . . . . . 144
Heating . . . . . . . . . . . . . . . . . . . . . . . 144
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Rear Heating System . . . . . . . . . 146
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Cluster, Instrument . . . . . . . . . . . . . . 86
Collision Damage Repair . . . . . . . 328
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 76
Compass . . . . . . . . . . . . . . . . . . . . . . . . 81
Connected Services
Connections . . . . . . . . . . . . . . . . . . 342
Diagnostics . . . . . . . . . . . . . . . . . . . 343
Navigation . . . . . . . . . . . . . . . . . . . . 341
Connections
Connected Services . . . . . . . . . . 342
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 178
Control of a Vehicle . . . . . . . . . . . . . 153
Convex Mirrors . . . . . . . . . . . . . . . . . . 21 Coolant
Engine Temperature Gauge . . . . 89
Cooling . . . . . . . . . . . . . . . . . . . . 144, 146
Cooling System . . . . . . . . . . . . . . . . . 230
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 327
Cruise Control . . . . . . . . . . . . . . . . . . 180
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Customer Assistance . . . . . . . . . . . 324 Offices . . . . . . . . . . . . . . . . . . . . . . . . 323
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 324
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . 330
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 321
Cybersecurity . . . . . . . . . . . . . . . . . . . 333
D
Damage Repair, Collision . . . . . . . 328
Danger, Warning, and Caution . . . . 2
Data Collection Infotainment System . . . . . . . . . . 334
OnStar . . . . . . . . . . . . . . . . . . . . . . . 334
Data Recorders, Event . . . . . . . . . 333
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 112 Defensive Driving . . . . . . . . . . . . . . . 152
Delayed Locking . . . . . . . . . . . . . . . . . 14
Devices
Auxiliary . . . . . . . . . . . . . . . . . . . . . . 131
Diagnostics Connected Services . . . . . . . . . . 343
Distracted Driving . . . . . . . . . . . . . . . 151
Dome Lamps . . . . . . . . . . . . . . . . . . . 114
Door
Cargo Door Relocking . . . . . . . . . . 14
Delayed Locking . . . . . . . . . . . . . . . . 14
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Locks . . . . . . . . . . . . . . . . . . . . 14
Rear Doors . . . . . . . . . . . . . . . . . . . . . 18
Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Sliding . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . 320
Driver Assistance Systems . . . . . 182
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . 99
Driving
Better Fuel Economy . . . . . . . . . 151
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 196
Defensive . . . . . . . . . . . . . . . . . . . . . 152
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 152
Hill and Mountain Roads . . . . . . 156
If the Vehicle is Stuck . . . . . . . . . 158

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