2018 CHEVROLET EXPRESS engine overheat

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
248 Vehicle Care
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of fires caused by electrical
problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
Engine Compartment
Fuse Block
The fuse block is located in the
engine compartment on the driver
side of the vehicle.
Vehicles with upfitter content
See www.gmupfitter.com for upfitter
provisions and best practices.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Index 347
Driving (cont'd)Wet Roads . . . . . . . . . . . . . . . . . . . 166
Winter . . . . . . . . . . . . . . . . . . . . . . . . 167
Dual Tire
Rotation . . . . . . . . . . . . . . . . . . . . . . 270
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 199
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 212
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 253
Fuses and Circuit Breakers . . . 248
Overload . . . . . . . . . . . . . . . . . . . . . 248
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 333
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 227
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 105
Compartment Overview . . . . . . . 217
Coolant Heater . . . . . . . . . . . . . . . 177
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 101
Cooling System . . . . . . . . . . . . . . . 229 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . 317
Exhaust . . . . . . . . . . . . . . . . . . . . . . 181
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Oil Life System . . . . . . . . . . . . . . . 222
Oil Pressure Gauge . . . . . . . . . . 100
Oil Pressure Light . . . . . . . . . . . . 109
Overheating . . . . . . . . . . . . . . . . . . 233
Power Messages . . . . . . . . . . . . . .116
Running While Parked . . . . . . . . 181
Starting . . . . . . . . . . . . . . . . . . . . . . . 175
Enhanced Technology Glass . . . . 40
Entry/Exit Lighting . . . . . . . . . . . . . . 127
Equipment, Towing . . . . . . . . . . . . . 209
Event Data Recorders . . . . . . . . . . 330
Extender, Seat Belt . . . . . . . . . . . . . . 55
Exterior Lamp Controls . . . . . . . . . 122
Exterior Lamps Off Reminder . . . 123
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 127
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 234
Fast Idle System . . . . . . . . . . . . . . . . 176
Filter, Engine Air Cleaner . . . . . . . . . . . 227 Flash-to-Pass . . . . . . . . . . . . . . . . . . . 123
Flashers, Hazard Warning . . . . . . 125
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 276
Changing . . . . . . . . . . . . . . . . . . . . . 278
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 300
Fluid
AutomaticTransmission . . . . . . . . . . . 223, 226
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 237
Power Steering . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 235
Folding Mirrors . . . . . . . . . . . . . . . . . . 37
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 328
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Front Storage . . . . . . . . . . . . . . . . . . . . 88
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 245
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Additives . . . . . . . . . . . . . . . . . . . . . 198
Economy Driving . . . . . . . . . . . . . . . 23
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 201

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
350 Index
MirrorsConvex . . . . . . . . . . . . . . . . . . . . . . . . . 36
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 37
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 36
Manual Rearview . . . . . . . . . . . . . . . 37
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 36
Mirrors, Interior Rearview . . . . . . . . 37
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 264
Multi-band Antenna . . . . . . . . . . . . . 138
N
Navigation OnStar . . . . . . . . . . . . . . . . . . . . . . . 334
New Vehicle Break-In . . . . . . . . . . . 173
Noise Control System . . . . . . . . . . 240
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . 99 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 165
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Oil Life System . . . . . . . 222
Engine Oil Pressure Gauge . . . 100 Oil (cont'd)
Pressure Light . . . . . . . . . . . . . . . . 109
Older Children, Restraints . . . . . . . 68
Online Owner Center . . . . . . . . . . . 321
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 331
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 338
OnStar Connections . . . . . . . . . . . . 335
OnStar Diagnostics . . . . . . . . . . . . . 337
OnStar Emergency . . . . . . . . . . . . . 333
OnStar Navigation . . . . . . . . . . . . . . 334
OnStar Overview . . . . . . . . . . . . . . . 332
OnStar Security . . . . . . . . . . . . . . . . 334
OnStar System . . . . . . . . . . . . . . . . . 148
Operation Infotainment System . . . . . . . . . . 133
Ordering Service Publications . . . . . . . . . . 327
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Overheating, Engine . . . . . . . . . . . . 233
Overview . . . . . . . . . . . . . . . . . . 130, 132
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 179
Shifting Out of . . . . . . . . . . . . . . . . 180 Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 187
Brake and P (Park)
Mechanism Check . . . . . . . . . . 242
Over Things That Burn . . . . . . . 180
Parking Assist . . . . . . . . . . . . . . . . . . 194
Perchlorate Materials Requirements, California . . . . . . 215
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . .116
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 148
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 30
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 95
Protection, Battery . . . . . . . . . . . . 127
Retained Accessory (RAP) . . . 177
Seat Adjustment . . . . . . . . . . . . . . . . 42
Steering Fluid . . . . . . . . . . . . . . . . . 235
Windows . . . . . . . . . . . . . . . . . . . . . . . 38
Pregnancy, Using Seat Belts . . . . 54
Privacy Vehicle Data Recording . . . . . . . 330
Program
Courtesy Transportation . . . . . . 324