service indicator CHEVROLET EXPRESS 2019 User Guide

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Driving and Operating 227
Always know the maximum speed
rating for the trailer tires before
driving. This may be significantly
lower than the vehicle tire speed
rating. The speed rating may be on
the trailer tire sidewall. If the speed
rating is not shown, the default
trailer tire speed rating is 105 km/h
(65 mph).Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp 0108. A device connected
to the DLC —such as an
aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle’s
systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 070 and Adding Equipment
to the Airbag-Equipped Vehicle
0 70.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
248 Vehicle Care
mixture through the filler neck
until the level reaches the base
of the filler neck.
8. Replace the pressure cap. At any time during this procedure
if coolant begins to flow out of
the filler neck, reinstall the
pressure cap.
Caution
If the pressure cap is not tightly
installed, coolant loss and 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 diesel
supplement.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.
The vehicle has an indicator to warn
of engine overheating.
There is an engine coolant
temperature gauge on the vehicle's
instrument cluster. See Engine
Coolant Temperature Gauge 0104.
If the decision is made not to lift the
hood when this warning appears,
but instead get service help right
away, see Roadside Assistance
Program 0339.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fan should be running. If it is not, do not
continue to run the engine and have
the vehicle serviced.
See if the engine cooling fan speed
increases when idle speed is
doubled by pushing the accelerator
pedal down. If it does not, the
vehicle needs service. Turn off the
engine.
If Steam is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Vehicle Care 251
below freezing, use a fluid that has
sufficient protection against
freezing.
Adding Washer Fluid
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. SeeEngine
Compartment Overview 0232 for
reservoir location.
Caution
. Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
(Continued)
Caution (Continued)
.Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can
be heard all the time when the
vehicle is moving, except when
applying the brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Vehicle Care 285
or rust build-up. Do not get
grease on the flat wheel
mounting surface or on the
wheel nuts or bolts.
Dual Tire Rotation
When the vehicle is new,
or whenever a wheel, wheel bolt,
or wheel nut is replaced or serviced,
check the wheel nut torque after
160, 1 600, and 10 000 km (100,
1,000, and 6,000 mi) of driving. For
proper torque and wheel nut
tightening information, see
“Removing the Flat Tire and
Installing the Spare Tire”underTire
Changing 0292 and“Wheel Nut
Torque” underCapacities and
Specifications 0332.
The outer tire on a dual wheel setup
generally wears faster than the
inner tire. Tires last longer and wear
more evenly if they are rotated.
See Tire Inspection 0283 andTire
Rotation 0283. Also see
Maintenance Schedule 0319. See
Tires 0270 andTire Pressure
0 278 for more information on
proper tire inflation.
When It Is Time for New
Tires
Factors, such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. Some commercial truck tires may not have
treadwear indicators.
See
Tire Inspection 0283 andTire
Rotation 0283 for additional
information.
The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. GM recommends that
tires, including the spare if
equipped, be replaced after six
years, regardless of tread wear. To
identify the age of a tire, use the tire
manufacture date which is the last
four digits of the DOT Tire
Identification Number (TIN) which is
molded into one side of the tire
sidewall. The first two digits
represent the week (01-52) and the
last two digits, the year. For
example, the third week of the year
2010 would have a four-digit DOT
date of 0310.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
326 Service and Maintenance
of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires. Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see
Interior Care 0313 and
Exterior Care 0308.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
. Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
. Your dealer has the required
equipment to ensure proper
wheel alignment.
Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
. Signs of damage include
scratches, cracks, and chips. .
Trained dealer technicians can
inspect the windshield and
recommend proper replacement
if needed.
Wiper Blades
Wiper blades need to be cleaned
and kept in good condition to
provide a clear view.
. Signs of wear include streaking,
skipping across the windshield,
and worn or split rubber.
. Trained dealer technicians can
check the wiper blades and
replace them when needed.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Index 365
Fuel (cont'd)Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 209
Filling the Tank . . . . . . . . . . . . . . . 208
Foreign Countries . . . . . . . . . . . . 207
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 102
Low Fuel Warning Light . . . . . . . .113
Prohibited Fuels . . . . . . . . . . . . . . 206
Recommended . . . . . . . . . . . . . . . 206
Top Tier . . . . . . . . . . . . . . . . . . . . . . 206
Full-Size Spare Tire . . . . . . . . . . . . 301
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 264
Floor Console Fuse Block . . . . 268
Fuses and Circuit Breakers . . . 264
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 258
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 104
Engine Oil Pressure . . . . . . . . . . 103
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Odometer . . . . . . . . . . . . . . . . . . . . . 102
Speedometer . . . . . . . . . . . . . . . . . 102
Trip Odometer . . . . . . . . . . . . . . . . 102
Voltmeter . . . . . . . . . . . . . . . . . . . . . 105 Gauges (cont'd)
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 100
General Information
Service and Maintenance . . . . . 317
Towing . . . . . . . . . . . . . . . . . . . . . . . . 210
Vehicle Care . . . . . . . . . . . . . . . . . . 229
Glass, Enhanced Technology . . . . 42
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 339
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 260
Hazard Warning Flashers . . . . . . . 128
Head Restraints . . . . . . . . . . . . . . . . . 44
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 259
Automatic . . . . . . . . . . . . . . . . . . . . . 127
Bulb Replacement . . . . . . . . . . . . 260
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 127
Flash-to-Pass . . . . . . . . . . . . . . . . . 126
High-Beam On Light . . . . . . . . . . .113
High/Low Beam Changer . . . . . 126
Heated Mirrors . . . . . . . . . . . . . . . . . . . 39
Heater Engine Coolant . . . . . . . . . . . . . . . 180
Heating . . . . . . . . . . . . . . . . . . . . 159, 161 High-Beam On Light . . . . . . . . . . . . 113
Hill and Mountain Roads . . . . . . . . 170
Hill Start Assist (HSA) . . . . . . . . . . 192
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 51
HVAC . . . . . . . . . . . . . . . . . . . . . . 159, 161
I
Idle System Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Ignition Positions . . . . . . . . . . . . . . . 176
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 257
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 37
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . . 111
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 73
Information
Publication Ordering . . . . . . . . . . 344
Infotainment . . . . . . . . . . . . . . . . . . . . 132
Infotainment System . . . . . . . . . . . . 348
Instrument Cluster . . . . . . . . . . . . . . 101
Interior Rearview Mirrors . . . . . . . . . 39
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Index 367
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 330
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 324
Maintenance Schedule . . . . . . . . . 319 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 327
Malfunction Indicator Lamp . . . . . 108
Manual Mirrors . . . . . . . . . . . . . . . . . . 38
Manual Mode . . . . . . . . . . . . . . . . . . . 188
Manual Windows . . . . . . . . . . . . . . . . 40
Media Avoiding Untrusted Devices . . 141
Messages Engine Power . . . . . . . . . . . . . . . . .119
Vehicle . . . . . . . . . . . . . . . . . . . . . . . .119
Vehicle Speed . . . . . . . . . . . . . . . . .119
Mirrors
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 38
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 39
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 39
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 38
Manual Rearview . . . . . . . . . . . . . . . 39
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 38
Mirrors, Interior Rearview . . . . . . . . 39 Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Multi-band Antenna . . . . . . . . . . . . . 141
N
Navigation Connected Services . . . . . . . . . . 357
New Vehicle Break-In . . . . . . . . . . . 176
Noise Control System . . . . . . . . . . 255
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 102 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 168
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 235
Engine Oil Life System . . . . . . . 237
Engine Oil Pressure Gauge . . . 103
Pressure Light . . . . . . . . . . . . . . . . .112
Older Children, Restraints . . . . . . . 72
Online Owner Center . . . . . . . . . . . 338
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 348
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 351
OnStar Emergency . . . . . . . . . . . . . 350
OnStar Overview . . . . . . . . . . . . . . . 349
OnStar Security . . . . . . . . . . . . . . . . 351
OnStar System . . . . . . . . . . . . . . . . . 151 Operation
Infotainment System . . . . . . . . . . 136
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Overheating, Engine . . . . . . . . . . . . 248
Overview . . . . . . . . . . . . . . . . . . 133, 135
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 182
Shifting Out of . . . . . . . . . . . . . . . . 183
Park Assist . . . . . . . . . . . . . . . . . . . . . 199
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 191
Brake and P (Park)Mechanism Check . . . . . . . . . . 257
Over Things That Burn . . . . . . . 184
Perchlorate Materials Requirements, California . . . . . . 230
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 120
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 151
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 31
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 98
Protection, Battery . . . . . . . . . . . . 131