2020 CHEVROLET SONIC service

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Instruments and Controls 101
Caution (Continued)
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
0204.
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 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 0199. 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 0198.
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 0201. See
your dealer if assistance is needed.
The vehicle may not pass
inspection if:
. The light is on when the engine
is running.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
102 Instruments and Controls
.The light does not come on
when the ignition is on with the
engine not running for Key
Access or in Service Mode for
Keyless Access.
. 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.Service Vehicle Soon
Light
For vehicles with this light, it comes
on if a condition exists that may
require the vehicle to be taken in for
service.
If the light comes on, take the
vehicle to your dealer for service as
soon as possible.
Owner Manual Indicator
This symbol is shown when you
need to see the owner ’s manual for
additional instructions or
information.
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 stays on
after the parking brake is fully
released, there is a brake problem.
Have the brake system inspected
right away.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Instruments and Controls 103
If the light comes on while driving,
pull off the road and stop carefully.
The brake pedal might be harder to
push, or the brake pedal may go
closer to the floor. It could take
longer to stop. If the light is still on,
have the vehicle towed for service.
SeeTowing the Vehicle 0262.
{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
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Antilock Brake System
(ABS) Warning Light
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
0 102.
Operate Pedal Light
This light comes on when the clutch
or brake pedal needs to be applied
to start the vehicle.
Power Steering Warning
Light
This light comes on briefly when the
ignition is turned on as a check to
show it is working.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
104 Instruments and Controls
If it does not come on have the
vehicle serviced by your dealer.
If this light stays on, or comes on
while driving, the system may not be
working. If this happens, see your
dealer for service.
Lane Departure Warning
(LDW) Light
If equipped, this light is located in
the center of the instrument panel.
This light is green if LDW is on and
ready to operate.
This light changes to amber and
flashes to indicate that the lane
marking has been crossed without
using a turn signal in that direction.
SeeLane Departure Warning (LDW)
0 196.
Forward Collision Alert
(FCA) Warning Light
If equipped, this light is on the
center of the instrument panel.
The red forward collision alert
comes on and flashes when a
vehicle is being approached too
rapidly.
The forward collision alert stays on
when following a vehicle much too
closely.
See Forward Collision Alert (FCA)
System 0194.
Vehicle Ahead Indicator
This light is on the center of the
instrument panel.
If equipped, this indicator will
display green when a vehicle is
detected ahead
See Forward Collision Alert (FCA)
System 0194.
Ultrasonic Parking
Sensor Light
If equipped, this light comes on
briefly while starting the vehicle. If it
does not come on, have the vehicle
serviced.
This light indicates a malfunction in
the system. See your dealer for
service.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Instruments and Controls 105
SeePark Assist 0193.
Traction Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light then
turns off.
The traction off light comes on when
the Traction Control System (TCS)
has been turned off by pressing and
releasing the TCS/StabiliTrak/ESC
button.
This light and the StabiliTrak/ESC
OFF light come on when StabiliTrak/
Electronic Stability Control (ESC) is
turned off.
If the TCS is off, wheel spin is not
limited. Adjust driving accordingly. See
Traction Control/Electronic
Stability Control 0185.
StabiliTrak OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.
This light comes on when the
StabiliTrak/Electronic Stability
Control (ESC) system is turned off.
If StabiliTrak/ESC is off, the Traction
Control System (TCS) is also off.
If StabiliTrak/ESC and TCS are off,
the system does not assist in
controlling the vehicle. Turn on the
TCS and the StabiliTrak/ESC
systems, and the warning light
turns off.
See Traction Control/Electronic
Stability Control 0185.
Traction Control System
(TCS)/StabiliTrak Light
The StabiliTrak/Electronic Stability
Control (ESC) or Traction Control
System (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 StabiliTrak/
ESC system have been disabled.
If the indicator/warning light is on
and flashing, the TCS and/or the
StabiliTrak/ESC system is actively
working.
See Traction Control/Electronic
Stability Control 0185.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
106 Instruments and Controls
Engine Coolant
Temperature Warning
Light
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating0216. The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens, pull over and turn
off the engine as soon as possible.
See
Engine Overheating 0216.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine 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. Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See
Tire Pressure
0 240.
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 0243.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)

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Instruments and Controls 107
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
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
Immobilizer Light
The immobilizer light should come
on briefly as the engine is started.
If it does not come on, have thevehicle 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 immobilizer
system. See
Immobilizer Operation
(Key Access) 028 or
Immobilizer Operation (Keyless
Access) 029.
Reduced Engine Power
Light
The reduced engine power light
should come on briefly as the
engine is started. If it does not come
on, have the vehicle serviced by
your dealer.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Instruments and Controls 113
OIL LIFE 99 % is displayed, that
means 99% of the current oil life
remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
The oil should changed as soon as
possible. SeeEngine Oil0208. In
addition to the engine oil life system
monitoring the oil life, additional
maintenance is recommended in the
Maintenance Schedule. See
Maintenance Schedule 0278.
Remember, the Oil Life display must
be reset after each oil change. It will
not reset itself. Also, be careful not
to reset the Oil Life display
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, press SET/
CLR while the Oil Life display is
active. See Engine Oil Life System
0 210.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 appear one after another.
All messages should be taken
seriously.
Base Level Cluster
On the base level cluster, vehicle
messages appear as code numbers.
Some of these codes may appear
with the Service Vehicle Soon light
in the DIC display.
2 : No Remote Detected. Press
Clutch to Restart
3 : Coolant Level Low Add Coolant
4 : A/C Off Due to High
Engine Temp
5 : Steering Column Is Locked
6 : Step on Brake to Release Park
Brake
7 : Turn Steering Wheel, Turn Key
Off, Then On 9 :
Turn Steering Wheel, Start
Vehicle Again
10 : Brakes Overheated
11 : Brakes Worn
12 : Vehicle Overloaded
13 : Compressor Overheated
15 : Check High-Mounted
Brake Lamp
16 : Check Brake Lamps
17 : Headlamp Leveling Malfunction
18 : Left Low Beam Failure
19 : Check Rear Fog Lamp
20 : Check Right Low Beam Lamp
21 : Check Left Position Lamp
22 : Check Right Position Lamp
23 : Reversing Lamp Failure
24 : License Plate Lamp Failure
25 : Check Left Front Turn
Signal Lamp
26 : Left Rear Turn Indicator Failure
27 : Check Right Front Turn
Signal Lamp