2020 CHEVROLET EXPRESS fuses

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Vehicle Care 251
FusesUsage
19 Engine control module battery
20 Left stop/turn cutaway lamp
21 Left stop/turn trailer lamp
22 Right stop/turn cutaway lamp
23 –
24 Fuel pump
25 Auxiliary power outlet
26 Body control module 3
27 Special equipment option
28 Airbag
29 Steering wheel sensor
30 Engine control module/Ignition Fuses
Usage
31 Transmission control module
Ignition
32 Transmission control module 1
battery
33 Rear parking aid module
34 –
35 –
36 Fuel system control module battery
41 Transmission control module 2,
battery signal
42 Trailer wiring
43 –
44 Starter solenoid
45 Engine control module, powertrain
signal 2
46 DC-AC inverter
47 – Fuses
Usage
51 Left high-beam headlamp
52 Right high-beam headlamp
53 Left low-beam headlamp
54 Right low-beam headlamp
55 Wipers
56 Canister vent solenoid
58 Body control module 2
59 Body control module 1
61 Engine oil solenoid
62 O2 sensor 2
63 –
64 Mass airflow/ Canister vent
65 Ignition coils/ injectors - odd

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
254 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Mini-Fuses Usage
F1 –
F2 Steering wheel sensor
F3 Auxiliary parking lamps
F4 Front parking lamps
F5 Trailer parking lamps
F6 Upfitter/Parking lamps
F7 Right rear parking lamp
F8 Left rear parking lamp
F9 Exterior rear mirror switch/ Door
lock-unlock control
upfitter/Front
camera module Mini-Fuses Usage
F10 Airbag/Automatic occupant sensing
F11 –/OnStar
F12 ECM batt V6 gas
F13 HVAC 2
F14 HVAC 1
F15 Reflected LED display
F16 Upfitter aux 1/Gas ambulance
F17 Heated outside mirrors
F18 Rear window defogger
F19 Compass
F20 Radio/Chime/ SiriusXM satellite
radio
F21 Remote function actuator/Tire
pressure monitor Mini-Fuses Usage
F22 Ignition switch/ Discrete logic
ignition sensor
F23 Instrument cluster
F24 –
F25 HVAC control
F26 Auxiliary/Trailer reverse lamps
F27 Reverse tail lamps
F28 Upfitter 2/Reading lamps/Ambulance
F29 Rear blower
F30 Upfitter/Courtesy lamps
F31 Front door lock
F32 Rear door lock
F33 Cargo door unlock
F34 Passenger door unlock
F35 Rear passenger door unlock
F36 Driver door lock

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Vehicle Care 255
Mini-Fuses UsageF37 –
F38 –
Relays Usage K1 Run
K2 –
K3 Parking lamps
K4 Upfitter 2
K5 Rear window defogger
K6 Retained accessory power
Circuit
Breakers Usage
CB1 Power seats
CB2 Power windowsWheels 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. See Vehicle Load
Limits 0158.
(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
a sudden impact —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)

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