2018 CHEVROLET CITY EXPRESS check engine

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
Instruments and Controls 81
Instruments and
Controls
Controls
Steering Wheel Controls . . . . . . . 82
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Windshield Wiper/Washer . . . . . . 83
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Power Outlets . . . . . . . . . . . . . . . . . 84
Cigarette Lighter . . . . . . . . . . . . . . . 85
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 85
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 86
Instrument Cluster . . . . . . . . . . . . . 87
Speedometer . . . . . . . . . . . . . . . . . . 88
Odometer . . . . . . . . . . . . . . . . . . . . . . 88
Trip Odometer . . . . . . . . . . . . . . . . . 88
Tachometer . . . . . . . . . . . . . . . . . . . . 88
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 88
Seat Belt Reminders . . . . . . . . . . . 89
Airbag Readiness Light . . . . . . . . 89
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 90
Charging System Light . . . . . . . . . 91 Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . . 91
Brake System Warning Light . . . 93
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . 94
Overdrive Off Light . . . . . . . . . . . . . 94
Power Steering Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 95
Traction Control System (TCS)/ Electronic Stability Control
Light . . . . . . . . . . . . . . . . . . . . . . . . . 95
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . 96
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . 96
Tire Pressure Light . . . . . . . . . . . . 96
Engine Oil Pressure Light . . . . . . 97
Low Fuel Warning Light . . . . . . . . 97
Security Light . . . . . . . . . . . . . . . . . . 97
High-Beam On Light . . . . . . . . . . . 98
Low Washer Fluid Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 98
Cruise Control Light . . . . . . . . . . . 98
Door Ajar Light . . . . . . . . . . . . . . . . 98
Vehicle Messages
Fuel System Messages . . . . . . . . 99
Tire Messages . . . . . . . . . . . . . . . . . 99
Trip Computer
Trip Computer . . . . . . . . . . . . . . . . . 99
Vehicle Personalization
Vehicle Personalization (Radio with Touchscreen Only) . . . . . 100

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
86 Instruments and Controls
Warning Lights,
Gauges, and
Indicators
Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Some warning lights come on briefly
when the engine is started to
indicate they are working. When
one of the warning lights comes on
and stays on while driving, or when
one of the gauges shows there may
be a problem, check the section that
explains what to do. Waiting to do
repairs can be costly and even
dangerous.

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
Instruments and Controls 91
.Passenger seat unoccupied: The
passenger airbag status
indicator lights to indicate that
the front passenger frontal
airbag is off and will not inflate in
a collision.
See Passenger Sensing System
0 56 for more information.
Charging System Light
This light will come on briefly when
the ignition is turned on, and the
engine is not running, as a check to
show it is working.
It should go out when the engine is
started. If it 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. If a short
distance must be driven with the light on, turn off all accessories,
such as the radio and air
conditioner, to help reduce the drain
on the battery.
Malfunction Indicator
Lamp (Check Engine
Light)
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors the operation
of the vehicle to ensure emissions
are at acceptable levels, helping to
maintain a clean environment. The
malfunction indicator lamp comes
on when the vehicle is placed in
ON, as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer. See
Ignition Positions
0145 for more
information.
If the malfunction indicator lamp
comes on while the engine is
running, this indicates that the
OBD II system has detected a
problem and diagnosis and service
might be required.
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system also
assists the service technician in
correctly diagnosing any
malfunction.
Caution
If the vehicle is continually driven
with this light on, the emission
controls might not work as well,
the vehicle fuel economy might
not be as good, and the engine
might not run as smoothly. This
could lead to costly repairs that
might not be covered by the
vehicle warranty.

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
92 Instruments and Controls
Caution
Modifications made to the engine,
transmission, exhaust, intake,
or fuel system of the vehicle or
the replacement of the original
tires with other than those of the
same size and type as the
originals can affect the vehicle's
emission controls and can cause
this light to come on.
Modifications to these systems
could lead to costly repairs not
covered by the vehicle warranty.
This could also result in a failure
to pass a required Emission
Inspection/Maintenance test. See
Accessories and Modifications
0178.
This light comes on during a
malfunction in one of two ways:
Light Flashing : A misfire condition
has been detected. A misfire
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required. To prevent more serious damage to
the vehicle:
.
Do not drive at speeds above
72 km/h (45 mph)
. Avoid hard accelerations.
. Avoid steep uphill grades.
If the light continues to flash, find a
safe place to stop and park the
vehicle. Turn the vehicle off, wait at
least 10 seconds, and restart the
engine. If the light is still flashing,
follow the previous steps and see
your dealer for service as soon as
possible.
Light On Steady : An emission
control system malfunction has
been detected on the vehicle.
Diagnosis and service might be
required.
The following may correct an
emission control system
malfunction:
. Check that the fuel cap is fully
installed. See Filling the Tank
0 172. The diagnostic system
can determine if the fuel cap has
been left off or improperly installed. A loose or missing fuel
cap allows fuel to evaporate into
the atmosphere. A few driving
trips with the cap properly
installed should turn the light off.
. Check that good quality fuel is
used. Poor fuel quality causes
the engine not to run as
efficiently as designed and may
cause stalling after start-up,
stalling when the vehicle is
changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up.
If one or more of these conditions
occurs, change the fuel brand used.
It may require at least one full tank
of the proper fuel to turn the light off.
See Fuel 0170.
If none of the above have made the
light turn off, your dealer can check
the vehicle. The dealer has the
proper test equipment and
diagnostic tools to fix any
mechanical or electrical problems
that might have developed.

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
94 Instruments and Controls
When the ignition is on, the brake
system warning light also comes on
when the parking brake is set. See
Parking Brake0156. The light stays
on if the parking brake does not fully
release. If it stays on after the
parking brake is fully released, it
means the vehicle has a brake
problem.
If the light comes on while driving,
pull off the road and stop carefully.
The pedal might be harder to push,
or the pedal might go closer to the
floor. It could take longer to stop.
If the light is still on, check the brake
fluid level and have the vehicle
towed for service. See Towing the
Vehicle 0231.
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
(Continued)
Warning (Continued)
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Antilock Brake System
(ABS) Warning Light
MetricEnglish
For vehicles with the Antilock Brake
System (ABS), this light comes on
briefly when the engine is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the
ignition off. If the light comes on
while driving, stop as soon as it is safely possible and turn the ignition
off. Then start the engine again to
reset the system. If the ABS light
stays on, or comes on again while
driving, the vehicle needs service.
If the regular brake system warning
light is not on, the vehicle still has
brakes, but not antilock brakes.
If the regular brake system warning
light is also on, the vehicle does not
have antilock brakes and there is a
problem with the regular brakes.
See
Brake System Warning Light
0 93.
Overdrive Off Light
This light comes on when the
overdrive is turned off.
See Continuously Variable
Transmission (CVT) 0150.

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
Instruments and Controls 95
Power Steering Warning
Light
If equipped, this light comes on
briefly when the ignition is turned to
ON as a check to show it is working.
If it does not come on have the
vehicle serviced by your dealer.
{Warning
.If the engine is not running
or is turned off while driving,
the power assist for the
steering will not work.
Steering will be harder to
operate.
. When the power steering
warning light illuminates
with the engine running,
(Continued)
Warning (Continued)
there will be no power assist
for the steering. You will still
have control of the vehicle
but the steering will be
harder to operate. Have the
power steering system
checked by your dealer.
When the power steering warning
light illuminates with the engine
running, there will be no power
assist for the steering but you will
still have control of the vehicle. At
this time, greater steering effort is
required to operate the steering
wheel, especially in sharp turns and
at low speeds.
Traction Control System
(TCS)/Electronic Stability
Control Light
If equipped, the Electronic Stability
Control (ESC) or TCS indicator/
warning light comes on briefly when
the engine is started.
If the light 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 is on and not flashing, the
TCS, and potentially the ESC
system have been disabled.
If the indicator/warning light is on
and flashing, the TCS and/or the
ESC system is actively working.
See Traction Control/Electronic
Stability Control 0158.

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
Instruments and Controls 97
Stop as soon as possible, and
inflate the tires to the 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 at every ignition cycle.
See Tire Pressure Monitor
Operation 0211.
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
(Continued)
Caution (Continued)
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
The low fuel warning light may
come on when the fuel tank is low
on fuel. When fuel is added, the
light should go off. If it does not,
have the vehicle serviced.
On some vehicles, the segments of
the fuel gauge may flash as a low
fuel indicator.
Security Light

Chevrolet City Express Owner Manual (GMNA-Localizing-U.S./Canada-
11683523) - 2018 - CRC - 7/10/17
138 Driving and Operating
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
. Pass with caution.
. Keep windshield wiping
equipment in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0200.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.
Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission. .
Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear. .
Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills;
something could be in your lane
(e.g., stalled car, accident).
. Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 °C (32 °F) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating
too quickly causes the wheels to
spin and makes the surface
under the tires slick.