
Black plate (2,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
2015 Chevrolet Sonic Owner ManualM
Vehicle Care. . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-28
Bulb Replacement . . . . . . . . . . 10-28
Electrical System . . . . . . . . . . . . 10-33
Wheels and Tires . . . . . . . . . . . 10-40
Jump Starting . . . . . . . . . . . . . . . 10-75
Towing the Vehicle . . . . . . . . . . 10-78
Appearance Care . . . . . . . . . . . 10-81
Service and Maintenance . . . 11-1
General Information . . . . . . . . . . 11-1
Maintenance Schedule . . . . . . . 11-2
Special Application
Services . . . . . . . . . . . . . . . . . . . . 11-8
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . 11-8
Recommended Fluids . . . . . . . 11-12
Maintenance Records . . . . . . . 11-15 Technical Data
. . . . . . . . . . . . . . . 12-1
Vehicle Identification . . . . . . . . . 12-1
Vehicle Data . . . . . . . . . . . . . . . . . . 12-2
Customer Information . . . . . . . 13-1
Customer Information . . . . . . . . 13-1
Reporting Safety Defects . . . . 13-12
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . 13-14
OnStar . . . . . . . . . . . . . . . . . . . . . . . 14-1
OnStar Overview . . . . . . . . . . . . . 14-1
OnStar Services . . . . . . . . . . . . . . 14-2
OnStar Additional Information . . . . . . . . . . . . . . . . . . 14-6
Index . . . . . . . . . . . . . . . . . . . . . i-1

Black plate (19,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
In Brief 1-19
Express Open:Press and release
the rear of the switch to
express open.
Manually close the sunshade.
The sunroof will not operate if the
vehicle has an electrical failure.
See Sunroof on page 2-19.Performance and
Maintenance
Traction Control/
Electronic Stability
Control
The Traction Control System (TCS)
limits wheel spin. The system is on
when the vehicle is started.
The StabiliTrak system assists with
directional control of the vehicle in
difficult driving conditions. The
system is on when the vehicle is
started.
.To turn off traction control, press
and release the TCS/StabiliTrak
button
gon the center console.
The traction off light
i
illuminates.
.Press and release the TCS/
StabiliTrak button
gagain to
turn traction control back on.
.To turn off both traction control
and StabiliTrak, press and hold
the TCS/StabiliTrak button
g
until the traction off lightiand
the StabiliTrak OFF light
g
illuminate.
.Press the TCS/StabiliTrak
button
gagain to turn on both
systems.
See Traction Control/Electronic
Stability Control on page 9-28.
Tire Pressure Monitor
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The low tire pressure warning light
alerts to a significant loss in
pressure of one of the vehicle's
tires. If the warning light comes on,

Black plate (20,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
1-20 In Brief
stop as soon as possible and inflate
the tires to the recommended
pressure shown on the Tire and
Loading Information label. See
Vehicle Load Limits on page 9-9.
The warning light will remain on until
the tire pressure is corrected.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the
tire pressures are getting low and
the tires need to be inflated to the
proper pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
SeeTire Pressure Monitor System
on page 10-49.
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays the
:% CHANGE message on the DIC when it is
necessary to change the engine oil
and filter.
Remember, the oil life display must
be reset after each oil change. It will
not reset itself.
Resetting the Oil Life System
1. Press the MENU button to show
Remaining Oil Life on the
display. This display shows an
estimate of the oil’s remaining
useful life. If 99% is displayed,
that means that 99% of the
current oil life remains.
2. To reset the engine oil life system, press the SET/CLR
button while the oil life display is
active. After a few seconds,
there will be a single chime and
the oil life will be reset to 100%.
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. See
Engine Oil Life System on
page 10-12.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.

Black plate (21,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
In Brief 1-21
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.: 1-800-243-8872
TTY Users (U.S. Only):
1-888-889-2438
Canada: 1-800-268-6800
As the owner of a new Chevrolet,
you are automatically enrolled in the
Roadside Assistance program.
SeeRoadside Assistance Program
on page 13-5.
OnStar®
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to a live OnStar
Advisor for Emergency, Security,
Navigation, Connection, and
Diagnostic Services. OnStar
services may require a paid
subscription. See OnStar Overview
on page 14-1.

Black plate (29,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
Seats and Restraints 3-29
module, steering wheel, instrument
panel, any of the airbag modules,
ceiling or pillar garnish trim, front
sensors, side impact sensors,
or airbag wiring.
Your dealer and the service manual
have information about the location
of the airbag sensors, sensing and
diagnostic module, and airbag
wiring.
In addition, the vehicle has a
passenger sensing system for the
front outboard passenger position,
which includes sensors that are part
of the passenger seat. The
passenger sensing system may not
operate properly if the original seat
trim is replaced with non-GM
covers, upholstery, or trim; or with
GM covers, upholstery, or trim
designed for a different vehicle. Any
object, such as an aftermarket seat
heater or a comfort-enhancing pad
or device, installed under or on top
of the seat fabric, could also
interfere with the operation of the
passenger sensing system. This
could either prevent properdeployment of the passenger
airbag(s) or prevent the passenger
sensing system from properly
turning off the passenger airbag(s).
See
Passenger Sensing System on
page 3-24.
The vehicle has rollover roof-rail
airbags. See Different Size Tires
and Wheels on page 10-57 for
additional important information.
If you have to modify your vehicle
because you have a disability and
you have questions about whether
the modifications will affect the
vehicle's airbag system, or if you
have questions about whether the
airbag system will be affected if the
vehicle is modified for any other
reason, call Customer Assistance.
See Customer Assistance Offices
on page 13-3.Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light on
page 5-12.
{Caution
If an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, see Where Are the
Airbags? on page 3-19. See your
dealer for service.

Black plate (14,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
5-14 Instruments and Controls
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,(Continued)
Caution (Continued)
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.
{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 Tire Performance Criteria
(TPC) 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(Continued)
Caution (Continued)
to pass a required Emission
Inspection/Maintenance test. See
Accessories and Modifications on
page 10-3.
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:
.Reduce vehicle speed.
.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,

Black plate (21,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
Instruments and Controls 5-21
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. SeeTire Pressure
on page 10-48.
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 on page 10-50.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
This light comes on for a few
seconds when the ignition is turned
on as a check to indicate it is
working. If it does not come on,
have it fixed.
This light comes on when the
vehicle is low on fuel.

Black plate (26,1)Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-7707487) -
2015 - crc - 10/31/14
5-26 Instruments and Controls
Vehicle Messages
DIC messages display when the
status of the vehicle has changed
and action may be needed to
correct the condition. Multiple
messages appear one after another.
Press any of the DIC buttons on the
turn signal lever to acknowledge
and clear them from the display.
More urgent messages cannot be
cleared from the DIC display. All
messages should be taken
seriously. Clearing messages will
not correct the problem.
Vehicle messages appear as code
numbers.
25:Left Front Turn Signal Failure
26: Left Rear Turn Signal Failure
27: Right Front Turn Signal Failure
28: Right Rear Turn Signal Failure
49: Lane Departure Warning
Unavailable 52:
Change Timing Belt
77: Service Front Camera System
84: Engine Power Is Reduced
89: Service Vehicle Soon
Engine Oil Messages
:
% CHANGE
This message displays when the
engine oil needs to be changed.
When changing the engine oil, be
sure to reset the Oil Life System.
See Engine Oil Life System on
page 10-12, Engine Oil on
page 10-9, and Maintenance
Schedule on page 11-2.
Tire Messages
LF XX, RF XX, LR XX,
or RR XX
A message displays when the tire
pressure is low. It shows the
location of the low tire and the
approximate pressure of the low tire.
If a tire pressure message appears,
stop as soon as you can. Inflate the
tires by adding air until the tire
pressure is equal to the values
shown on the Tire and Loading
Information label. See Tires on
page 10-40, Vehicle Load Limits on
page 9-9, and Tire Pressure on
page 10-48.