oil pressure CHEVROLET EXPRESS 2023 Owners Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Introduction 3
A circle with a slash through it is a safety
symbol which means“Do not,” “Do not do
this,” or“Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*: Shown when the service manual has
additional instructions or information.
0: Shown when there is more information
on another page — “see page.”
Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u: Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components Properly
P:Do Not Apply High Pressure Water
B:Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
[:Forward Collision Alert
R:Fuse Block Cover Lock Location
+:Fuses
j:ISOFIX/LATCH System Child Restraints
Q:Keep Fuse Block Covers Properly
Installed
|: Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
*: Malfunction Indicator Lamp
::Oil Pressure
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7:Rear Cross Traffic Alert
I:Registered Technician
/:Remote Vehicle Start
h:Risk of Electrical Fire
>:Seat Belt Reminders
I:Side Blind Zone Alert
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a: Under Pressure
k: Vehicle Ahead Indicator

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Keys, Doors, and Windows 11
The remote vehicle start feature will not
operate if:
.The key is in the ignition.
.The hood is open.
.The hazard warning flashers are on.
.There is an emission control system
malfunction. SeeMalfunction Indicator
Lamp (Check Engine Light) 077.
.The engine coolant temperature is
too high.
.The oil pressure is low.
.The vehicle is not in park.
.Two remote starts or a start with an
extension have already been provided.
To view available settings from the Driver
Information Center (DIC) press
Uto enter
the feature settings menu.
Door Locks
{Warning
.Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. When a door is locked,
the handle will not open it. The
chance of being thrown out of the
vehicle in a crash is increased if the (Continued)
Warning (Continued)
doors are not locked. So, all
passengers should wear seat belts
properly and the doors should be
locked whenever the vehicle is driven.
.Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.
To lock the door from the inside, slide the
manual lever on the door down. To unlock
the door, slide the manual lever up.
From the outside, use the key.
If the vehicle is equipped with Keyless Entry,
seeRemote Keyless Entry (RKE) System
Operation 08.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
66 Instruments and Controls
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 66
Steering Wheel Controls . . . . . . . . . . . . . . . . 67
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Windshield Wiper/Washer . . . . . . . . . . . . . 68
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . 71
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . 72
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Engine Oil Pressure Gauge . . . . . . . . . . . . . . 73
Engine Coolant Temperature Gauge . . . . 74
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . 74
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 75
Airbag Readiness Light . . . . . . . . . . . . . . . . . . 75
Airbag On-Off Light . . . . . . . . . . . . . . . . . . . . . 76
Charging System Light . . . . . . . . . . . . . . . . . . 77
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Brake System Warning Light . . . . . . . . . . . 78
Antilock Brake System (ABS) Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . 79
Lane Departure Warning (LDW) Light . . . 79
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . 80
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . 80
Traction Control System (TCS)/StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 80
Engine Oil Pressure Light . . . . . . . . . . . . . . . 81
Low Fuel Warning Light . . . . . . . . . . . . . . . . 81
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 82
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 82
Cruise Control Light . . . . . . . . . . . . . . . . . . . . 82
Information Displays
Driver Information Center (DIC) . . . . . . . . . 82
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 86
Engine Power Messages . . . . . . . . . . . . . . . . 86
Vehicle Speed Messages . . . . . . . . . . . . . . . . 87
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 87
Controls
Steering Wheel Adjustment
For vehicles with a tilt steering wheel, the
lever is located on the left side of the
steering column.
To adjust the steering wheel:
1. Pull the lever to move the steering wheel up or down into a comfortable
position.
2. Release the lever to lock the steering wheel in place.
Do not adjust the steering wheel while
driving.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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72 Instruments and Controls
Instrument Cluster
English Shown, Metric Similar
1.Engine Oil Pressure Gauge 073
2. Speedometer 072
3. Voltmeter Gauge 074
4. Fuel Gauge 072
5. Driver Information Center (DIC) 082
6. Engine Coolant Temperature Gauge
074Speedometer
The speedometer shows the vehicle speed in
kilometers per hour (km/h) and miles per
hour (mph).
Odometer
The odometer shows how far the vehicle has
been driven, in either kilometers or miles.
Trip Odometer
The trip odometer shows how far the
vehicle has been driven since the trip
odometer was last reset.
The trip odometer is accessed and reset
through the Driver Information Center (DIC).
See Driver Information Center (DIC) 082.
Fuel Gauge
Metric

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Instruments and Controls 73
English
When the ignition is on, the fuel gauge
indicates the approximate amount of fuel
left in the tank.
There is an arrow near the fuel gauge
pointing to the side of the vehicle the fuel
door is on.
When the indicator nears empty, the low
fuel light comes on. There still is a little fuel
left, but the vehicle should be refueled soon.
The fuel gauge may:
.Take a little more, or less fuel to fill up
than it indicates. For example, the gauge
may have indicated the tank is half full, but it actually will take a little more,
or less than half the tank's capacity to fill
the tank.
.Moves a little while turning a corner,
speeding up, or braking.
.Take a few seconds to stabilize after the
ignition is turned on and goes back to
empty when the ignition is turned off.
These are normal conditions, none of which
indicate a problem with the fuel gauge.
Engine Oil Pressure Gauge
Metric
English
The oil pressure gauge shows the engine oil
pressure in psi (pounds per square inch)
or kPa (kilopascals) when the engine is
running.
Oil pressure may vary with engine speed,
outside temperature and oil viscosity, but
readings above the low pressure zone
indicate the normal operating range.
A reading in the low pressure zone may be
caused by a dangerously low oil level or
other problem causing low oil pressure.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
74 Instruments and Controls
Caution
Lack of proper engine oil maintenance
can damage the engine. Driving with the
engine oil low can also damage the
engine. The repairs would not be covered
by the vehicle warranty. Check the oil
level as soon as possible. Add oil if
required, but if the oil level is within the
operating range and the oil pressure is
still low, have the vehicle serviced.
Always follow the maintenance schedule
for changing engine oil.
Engine Coolant Temperature
Gauge
Metric
EnglishThis gauge shows the engine coolant
temperature.
It also provides an indicator of how hard the
vehicle is working. During a majority of the
operation, the gauge will read 100 °C (210 °F)
or less. If the vehicle is pulling a load or
going up hills, it is normal for the
temperature to fluctuate and approach the
122 °C (250 °F) mark. If the gauge reaches
the 125 °C (260 °F) mark, it indicates that the
cooling system is working beyond its
capacity.
See
Engine Overheating 0186.
Voltmeter Gauge

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Instruments and Controls 81
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 208.
When the Light Flashes First and Then Is On
Steady
If the light flashes for about a minute and
then stays on, there may be a problem with
the TPMS. If the problem is not corrected,
the light will come on every time the
vehicle is started. See Tire Pressure Monitor
Operation 0210.
Engine Oil Pressure Light
Caution
Driving the vehicle with low engine oil
pressure can damage the engine and the
repairs would not be covered by the
vehicle warranty.
If the engine oil pressure light comes on
while driving:
1. Stop in a safe location and turn off the engine.
2. Check the oil level. See Engine Oil
0 179.
(Continued)
Caution (Continued)
3. Add oil if the oil level is below the
normal operating range.
4. Restart the vehicle. If the engine oil pressure light stays on for more
than 10 seconds, turn the vehicle
back off. Do not restart the vehicle.
See your dealer for service.
This light should come on briefly when the
engine starts. When the engine is off and
the vehicle is on, the light should remain
illuminated. If it does not come on under
either condition, contact your dealer.
If the light comes on and stays on when the
engine is running, it may not have adequate
oil pressure. The oil level may be low or
there may be some other oil system
problem. Turn the engine off when it is safe
to do so and contact your dealer.
Low Fuel Warning Light
English Shown, Metric Similar
A Low Fuel Warning Light near the fuel
gauge comes on briefly when the ignition is
turned on as a check to show it is working.
It also comes on, and a chime sounds when
the fuel gauge indicator nears empty. The
light turns off when fuel is added. If it does
not, have the vehicle serviced.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 83
DIC Buttons
The buttons are the trip/fuel, vehicle
information, customization, and set/reset
buttons. The button functions are detailed in
the following pages.
3:Press this button to display the
odometer, trip odometers, fuel range,
average economy, fuel used, timer, average
speed, and digital tachometer.
T: Press this button to display the oil
life, rear park assist, units, tire pressure
readings for vehicles with the Tire Pressure
Monitor System (TPMS), engine hours, Tire
Pressure Monitor System (TPMS)
programming for vehicles with the TPMS and without a Remote Keyless Entry (RKE)
transmitter, and compass zone and compass
calibration on vehicles with this feature.
U:
Press this button to customize the
feature settings on the vehicle. See Vehicle
Personalization 087 for more information.
V:Press this button to set or reset certain
functions and to turn off or acknowledge
messages on the DIC.
Trip/Fuel Menu Items
3: Press this button to scroll through
the following menu items:
Odometer
Press
3until XX km (mi) displays. This
display shows the distance the vehicle has
been driven in either kilometers (km) or
miles (mi).
Trip Odometers
Press
3until A or B displays. This
display shows the current distance traveled
in either kilometers (km) or miles (mi) since
the last reset for each trip odometer. Both
trip odometers can be used at the
same time. Each trip odometer can be reset to zero
separately by pressing
Vwhile the desired
trip odometer is displayed.
The trip odometer has a feature called the
retro-active reset. This can be used to set
the trip odometer to the number of
kilometers (miles) driven since the ignition
was last turned on. This can be used if the
trip odometer is not reset at the beginning
of the trip.
To use the retro-active reset feature, press
and hold
Vfor at least four seconds. The
trip odometer will display the number of
kilometers (km) or miles (mi) driven since
the ignition was last turned on and the
vehicle was moving. Once the vehicle begins
moving, the trip odometer will accumulate
mileage. For example, if the vehicle was
driven 8 km (5 miles) before it is started
again, and then the retro-active reset feature
is activated, the display will show 8 km
(5 miles). As the vehicle begins moving, the
display will then increase to 8.1 km
(5.1 miles), 8.2 km (5.2 miles), etc.
If the retro-active reset feature is activated
after the vehicle is started, but before it
begins moving, the display will show the
number of kilometers (km) or miles (mi) that
were driven during the last ignition cycle.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 85
of the current oil life remains. The engine oil
life system will alert you to change the oil
on a schedule consistent with your driving
conditions.
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message will
appear on the display. You should change
the oil as soon as possible. SeeEngine Oil
0 179. In addition to the engine oil life
system monitoring the oil life, additional
maintenance is recommended. See
Maintenance Schedule 0242.
Remember, you must reset the OIL LIFE
yourself after each oil change. It will not
reset itself. Also, be careful not to reset the
OIL LIFE accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until the next
oil change. To reset the engine oil life
system, see Engine Oil Life System 0181.
Side Blind Zone Alert
If the vehicle has Side Blind Zone Alert
(SBZA), this display allows the system to be
turned on or off. Press
Tuntil SBZA
displays. Once in this display, press
Vto
select between ON or OFF. When the SBZA system is turned off, a DIC message will
display. See
Side Blind Zone Alert (SBZA)
0 150.
Park Assist
If the vehicle has the Rear Park Assist (RPA)
system, press
Tuntil PARK ASSIST
displays. This display allows the system to
be turned on or off. Once in this display,
press to select between ON or OFF. The RPA
system automatically turns back on after
each vehicle start. When the RPA system is
turned off and the vehicle is shifted out of
P (Park), the DIC will display the PARK
ASSIST OFF message as a reminder that the
system has been turned off. See Park Assist
0 147.
Units
Press
Tuntil UNITS displays. This display
allows you to select between metric or
English units of measurement. Once in this
display, press
Vto select between METRIC
or ENGLISH units. Tire Pressure
If the vehicle has the Tire Pressure Monitor
System (TPMS), the pressure for each tire
can be viewed in the DIC. The tire pressure
will be shown in either kilopascals (kPa) or
pounds per square inch (psi). Press
Tuntil
the DIC displays FRONT TIRES PSI (kPa)
LEFT ## RIGHT ##. Press
Tagain until the
DIC displays REAR TIRES PSI (kPa) LEFT ##
RIGHT ##.
If a low tire pressure condition is detected
by the system while driving, a message
advising you to check the pressure in a
specific tire will appear in the display. See
Tire Pressure 0208.
If the tire pressure display shows dashes
instead of a value, there may be a problem
with the vehicle. If this consistently occurs,
see your dealer for service.
Engine Hours
Press
Tuntil ENGINE HOURS displays. This
display shows the total number of hours the
engine has run.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
172 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 173
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 173
Accessories and Modifications . . . . . . . . . . 173
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 173
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Engine Compartment Overview . . . . . . . . 176
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Engine Oil Life System . . . . . . . . . . . . . . . . . 181
Automatic Transmission Fluid . . . . . . . . . . 181
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 182
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 183
Engine Overheating . . . . . . . . . . . . . . . . . . . 186
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Power Steering Fluid . . . . . . . . . . . . . . . . . . 188
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Battery - North America . . . . . . . . . . . . . . . 191
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Noise Control System . . . . . . . . . . . . . . . . . . 191
Starter Switch Check . . . . . . . . . . . . . . . . . . . 192
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 193
Ignition Transmission Lock Check . . . . . . 193 Park Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Wiper Blade Replacement . . . . . . . . . . . . . 193
Windshield Replacement . . . . . . . . . . . . . . 194
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 194
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 194
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 194
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . . . . . . . . . . . . . . . 194
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 196
Electrical System
Electrical System Overload . . . . . . . . . . . . . 197
Fuses and Circuit Breakers . . . . . . . . . . . . . 198
Engine Compartment Fuse Block . . . . . . 198
Floor Console Fuse Block . . . . . . . . . . . . . . 202
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 204
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 205
Tire Designations . . . . . . . . . . . . . . . . . . . . . 206
Tire Terminology and Definitions . . . . . 206
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 208 Tire Pressure Monitor System . . . . . . . . . 209
Tire Pressure Monitor Operation . . . . . . . 210
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 212
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
When It Is Time for New Tires . . . . . . . . . 214
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 215
Different Size Tires and Wheels . . . . . . . . 216
Uniform Tire Quality Grading . . . . . . . . . . 216
Wheel Alignment and Tire Balance . . . . 217
Wheel Replacement . . . . . . . . . . . . . . . . . . . 218
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 219
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 220
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . 227
Jump Starting
Jump Starting - North America . . . . . . . . 228
Towing the Vehicle
Transporting a Disabled Vehicle . . . . . . . . 231
Recreational Vehicle Towing . . . . . . . . . . . 232
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240