2017 CHEVROLET EXPRESS engine

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 77
Charging System Light
The charging system light comes on briefly
when the ignition is turned on, but the
engine is not running, as a check to show
the light is working. It should go out when
the engine is started.
If the light stays on, or comes on while
driving, there may be a problem with the
electrical charging system. Have it checked
by your dealer. Driving while this light is on
could drain the battery.
When this light comes on, or is flashing, the
Driver Information Center (DIC) also displays
a message.
If a short distance must be driven with the
light on, be sure to turn off all accessories,
such as the radio and air conditioner. Find a
safe place to stop the vehicle.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is on and the engine is not
running. SeeIgnition Positions 0130.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)
Caution (Continued)
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications 0173.
If the light is flashing : A malfunction has
been detected that could damage the
emission control system and increase vehicle
emissions. Diagnosis and service may be
required.
To help prevent damage, reduce vehicle
speed and avoid hard accelerations and
uphill grades. If towing a trailer, reduce the
amount of cargo being hauled as soon as
possible.

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78 Instruments and Controls
If the light continues to flash, find a safe
place to park. Turn the vehicle off and wait
at least 10 seconds before restarting the
engine. If the light is still flashing, follow
the previous guidelines and see your dealer
for service as soon as possible.
If the light is on steady :A malfunction has
been detected. Diagnosis and service may be
required.
Check the following:
.A loose or missing fuel cap may cause
the light to come on. See Filling the Tank
0 154. A few driving trips with the cap
properly installed may turn the light off.
.Poor fuel quality can cause inefficient
engine operation and poor driveability,
which may go away once the engine is
warmed up. If this occurs, change the fuel
brand. It may require at least one full
tank of the proper fuel to turn the light
off. See Recommended Fuel 0153.
If the light remains on, see your dealer.
Emissions Inspection and Maintenance
Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the test
equipment will likely connect to the
vehicle's Data Link Connector (DLC).
The DLC is under the instrument panel to
the left of the steering wheel. Connecting
devices that are not used to perform an
Emissions Inspection/Maintenance test or to
service the vehicle may affect vehicle
operation. See Add-On Electrical Equipment
0 171. See your dealer if assistance is
needed.
The vehicle may not pass inspection if:
.The light is on when the engine is
running.
.The light does not come on when the
ignition is on while the engine is off.
.Critical emission control systems have not
been completely diagnosed. If this
happens, the vehicle would not be ready
for inspection and might require
several days of routine driving before the
system is ready for inspection. This can
happen if the 12-volt battery has recently
been replaced or run down, or if the
vehicle has been recently serviced.
See your dealer if the vehicle will not pass
or cannot be made ready for the test.
Brake System Warning Light
MetricEnglish
This light should come on briefly when the
vehicle is turned on. If it does not come on
then, have it fixed so it will be ready to
warn you if there is a problem.
When the vehicle is on, the brake system
warning light also comes on when the
parking brake is set. The light stays on if
the parking brake does not fully release. If it

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 81
For vehicles with the Tire Pressure Monitor
System (TPMS), this light comes on briefly
when the vehicle is started. It provides
information about tire pressures and
the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires
are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display. Stop as
soon as possible, and inflate the tires to the
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 210.
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 at every ignition
cycle. See Tire Pressure Monitor Operation
0 212.Engine Oil Pressure Light
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.
This light should come on briefly as the
engine is started. If it does not come on,
have the vehicle serviced by your dealer. If the light comes on and stays on, it means
that oil is not flowing through the engine
properly. The vehicle could be low on oil
and might have some other system
problem. See 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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82 Instruments and Controls
Security Light
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. SeeImmobilizer
Operation 016.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use. See
Headlamp High/Low-Beam Changer
0 92.
Cruise Control Light
This light comes on when the cruise control
is set.
This light goes out when the cruise control
is canceled. See Cruise Control0144.
Information Displays
Driver Information Center (DIC)
This vehicle has a DIC.
All messages will appear in the DIC display
at the bottom of the instrument cluster.
The DIC comes on when the ignition is on.
After a short delay, the DIC will display the
information that was last displayed before
the engine was turned off. The DIC displays trip, fuel, and vehicle
system information, and warning messages
if a system problem is detected.
If the vehicle has these features, the DIC
also displays the compass direction and the
outside air temperature when viewing the
trip and fuel information. The compass
direction appears on the top right corner of
the DIC display. The outside air temperature
automatically appears in the bottom right
corner of the DIC display. If there is a
problem with the system that controls the
temperature display, the numbers will be
replaced with dashes. If this occurs, have the
vehicle serviced by your dealer.
If the vehicle has a diesel engine, see the
Duramax diesel supplement.
DIC Operation and Displays
The DIC has different displays which can be
accessed by pressing the DIC buttons on the
instrument panel, next to the instrument
cluster.

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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84 Instruments and Controls
Fuel Range
Press
3until FUEL RANGE displays. This
display shows the approximate number of
remaining kilometers (km) or miles (mi) the
vehicle can be driven without refueling.
The fuel range estimate is based on an
average of the fuel economy over recent
driving history and the amount of fuel
remaining in the fuel tank. This estimate
will change if driving conditions change. For
example, if driving in traffic and making
frequent stops, this display may read one
number, but if the vehicle is driven on a
freeway, the number may change even
though the same amount of fuel is in the
fuel tank. This is because different driving
conditions produce different fuel economies.
Generally, freeway driving produces better
fuel economy than city driving.
If the vehicle is low on fuel, the FUEL LEVEL
LOW message will be displayed.
Average Economy
Press
3until AVG ECONOMY displays.
This display shows the approximate average
liters per 100 kilometers (L/100 km) or miles
per gallon (mpg). This number is calculated
based on the number of L/100 km (mpg) recorded since the last time this menu item
was reset. To reset AVG ECONOMY, press
and hold
V. The display will return to zero.
Fuel Used
Press
3until FUEL USED displays. This
display shows the number of liters (L) or
gallons (gal) of fuel used since the last reset
of this menu item. To reset the fuel used
information, press and hold
Vwhile FUEL
USED is displayed.
Timer
Press
3until TIMER displays. This
display can be used as a timer.
To start the timer, press
Vwhile TIMER is
displayed. The display will show the amount
of time that has passed since the timer was
last reset, not including time the ignition is
off. Time will continue to be counted as
long as the ignition is on, even if another
display is being shown on the DIC. The
timer will record up to 99 hours, 59 minutes
and 59 seconds (99:59:59) after which the
display will return to zero.
To stop the timer, press
Vbriefly while
TIMER is displayed. To reset the timer to zero, press and hold
V
while TIMER is displayed.
Average Speed
Press
3until AVERAGE SPEED displays.
This display shows the average speed of the
vehicle in kilometers per hour (km/h) or
miles per hour (mph). This average is
calculated based on the various vehicle
speeds recorded since the last reset of this
value. To reset the value, press and hold
V.
The display will return to zero.
Digital Tachometer
Press
3until Tachometer ##00 RPM
displays. This display shows the engine
speed in revolutions per minute (RPM).
Blank Display
This display shows no information.
Vehicle Information Menu Items
T: Press this button to scroll through the
following menu items:
Oil Life
Press
Tuntil OIL LIFE REMAINING displays.
This display shows an estimate of the oil's
remaining useful life. If you see 99% OIL LIFE
REMAINING on the display, that means 99%

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 0245.
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
0 148.
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 0210.
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.

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86 Instruments and Controls
Relearn Tire Positions
The vehicle may have this display. To access
this display, the vehicle must be in P (Park).
If the vehicle has the Tire Pressure Monitor
System (TPMS), after rotating the tires or
after replacing a tire or sensor, the system
must re-learn the tire positions. To re-learn
the tire positions, seeTire Pressure Monitor
System 0211. See Tire Inspection 0214 and
Tire Rotation 0214.
Change Compass Zone
The vehicle may have this feature. To
change the compass zone through the DIC,
see Compass 068.
Calibrate Compass
The vehicle may have this feature. The
compass can be manually calibrated. To
calibrate the compass through the DIC, see
Compass 068.
Blank Display
This display shows no information.Vehicle Messages
Messages displayed on the DIC indicate the
status of the vehicle or some action that
may be needed to correct a condition.
Multiple messages may appear one after
another.
The messages that do not require
immediate action can be acknowledged and
cleared by pressing
V. The messages that
require immediate action cannot be cleared
until that action is performed.
All messages should be taken seriously;
clearing the message does not correct the
problem.
If a SERVICE message appears, see your
dealer.
Follow the instructions given in the
messages. The system displays messages
regarding the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Engine and Transmission
.Tire Pressure
.Battery
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the vehicle's
propulsion power is reduced. A reduction in
propulsion power can affect the vehicle's
ability to accelerate. If this message is on,
but there is no observed reduction in
performance, proceed to your destination.
Under certain conditions the performance
may be reduced the next time the vehicle is
driven. The vehicle may be driven while this
message is on, but maximum acceleration
and speed may be reduced. Anytime this
message stays on, or displays repeatedly,
the vehicle should be taken to your dealer
for service as soon as possible.