
Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-11373973) -
2018 - crc - 10/9/17
Vehicle Care 277
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure
regularly. It should be 420 kPa
(60 psi).
Stop as soon as possible and check
that the spare tire is correctly
inflated after being installed on the
vehicle. The compact spare tire is
designed for temporary use only.
The vehicle will perform differently
with the spare tire installed and it is
recommended that the vehicle
speed be limited to 80 km/h
(50 mph). To conserve the tread of
the spare tire, have the standard tire
repaired or replaced as soon as
convenient and return the spare tire
to the storage area.
When using a compact spare tire,
the AWD (if equipped), ABS, and
Traction Control systems may
engage until the spare tire is
recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible
wheel slip.Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails
which can damage the tire, wheel,
and other parts of the vehicle.
Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire or
wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
Caution
Tire chains will not fit the compact
spare. Using them can damage
the vehicle and the chains. Do not
use tire chains on the compact
spare.
Jump Starting
Jump Starting - North
America
For more information about the
vehicle battery, see Battery - North
America 0235.
If the battery has run down, try to
use another vehicle and some
jumper cables to start your vehicle.
Be sure to use the following steps to
do it safely.
{Warning
WARNING: Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Batteries also
contain other chemicals known to
the State of California to cause
cancer. WASH HANDS AFTER
(Continued)

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-11373973) -
2018 - crc - 10/9/17
Index 339
Child Restraints (cont'd)Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 86
Older Children . . . . . . . . . . . . . . . . . . 79
Securing . . . . . . . . . . . . . . . . . . . . 93, 95
Systems . . . . . . . . . . . . . . . . . . . . . . . . 83
Circuit Breakers . . . . . . . . . . . . . . . . 244
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 283
Interior Care . . . . . . . . . . . . . . . . . . 288
Climate Control Systems . . . . . . . 165 Air Conditioning . . . . . . . . . . . . . . 165
Heating . . . . . . . . . . . . . . . . . . . . . . . 165
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Cluster, Instrument . . . . . . . . . . . . . 108
Clutch, Hydraulic . . . . . . . . . . . . . . . 226
Collision Damage Repair . . . . . . . 318
Compact Spare Tire . . . . . . . . . . . . 276
Compartment . . . . . . . . . . . . . . . . . . . 100
Load . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 99
Compass . . . . . . . . . . . . . . . . . . . . . . . 106
Connections
OnStar . . . . . . . . . . . . . . . . . . . . . . . 328
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 198 Control of a Vehicle . . . . . . . . . . . . . 172
Convex Mirrors . . . . . . . . . . . . . . . . . . 47
Coolant
Engine TemperatureWarning Light . . . . . . . . . . . . . . . .119
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 165
Cooling System . . . . . . . . . . . . . . . . . 228
Courtesy Lamps . . . . . . . . . . . . . . . . 136
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 317
Cover
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 100
Cruise Control . . . . . . . . . . . . . . . . . . 200 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Customer Assistance . . . . . . . . . . . 314 Offices . . . . . . . . . . . . . . . . . . . . . . . . 313
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 314
Customer Information Service PublicationsOrdering Information . . . . . . . . 320
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 311
D
Damage Repair, Collision . . . . . . . 318
Danger, Warning, and Caution . . . . 3 Data Collection
OnStar . . . . . . . . . . . . . . . . . . . . . . . 324
Data Recorders, Event . . . . . . . . . 323
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 133
Defensive Driving . . . . . . . . . . . . . . . 171
Delayed Locking . . . . . . . . . . . . . . . . . 40
Diagnostics OnStar . . . . . . . . . . . . . . . . . . . . . . . 330
Distracted Driving . . . . . . . . . . . . . . . 171
Dome Lamps . . . . . . . . . . . . . . . . . . . 136
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 122
Delayed Locking . . . . . . . . . . . . . . . . 40
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Drive Belt Routing, Engine . . . . . . 310
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 123
Driving Defensive . . . . . . . . . . . . . . . . . . . . . 171
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 172
For Better Fuel Economy . . . . . . . 25
Hill and Mountain Roads . . . . . . 175
If the Vehicle is Stuck . . . . . . . . . 176
Loss of Control . . . . . . . . . . . . . . . 173
Off-Road Recovery . . . . . . . . . . . 173
Vehicle Load Limits . . . . . . . . . . . 177
Wet Roads . . . . . . . . . . . . . . . . . . . 174

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-11373973) -
2018 - crc - 10/9/17
342 Index
L
Labeling, Tire Sidewall . . . . . . . . . . 253
LampsCourtesy . . . . . . . . . . . . . . . . . . . . . . 136
Daytime Running (DRL) . . . . . . 133
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 136
Exterior Controls . . . . . . . . . . . . . . 132
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 138
License Plate . . . . . . . . . . . . . . . . . 243
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . .113
On Reminder . . . . . . . . . . . . . . . . . 122
Reading . . . . . . . . . . . . . . . . . . . . . . 136
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 207
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Lap-Shoulder Belt . . . . . . . . . . . . . . . 63
LATCH System
Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 93
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 86
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 137
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Illumination Control . . . . . . . . . . . 136
Lights Airbag Readiness . . . . . . . . . . . . . . 111
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . .116
Brake System Warning . . . . . . . .115
Charging System . . . . . . . . . . . . . .113
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . .113
Cruise Control . . . . . . . . . . . . . . . . 122
Door Ajar . . . . . . . . . . . . . . . . . . . . . 122
Engine Coolant Temperature Warning . . . . . . . .119
Engine Oil Pressure . . . . . . . . . . 120
Flash-to-Pass . . . . . . . . . . . . . . . . . 133
Front Fog Lamp . . . . . . . . . . . . . . 121
High-Beam On . . . . . . . . . . . . . . . . 121
High/Low Beam Changer . . . . . 133
Hood Ajar . . . . . . . . . . . . . . . . . . . . 122
Immobilizer . . . . . . . . . . . . . . . . . . . 121
Lane Departure Warning . . . . . . .117
Low Fuel Warning . . . . . . . . . . . . 120
Operate Pedal . . . . . . . . . . . . . . . . .116 Lights (cont'd)
Reduced Engine Power . . . . . . 121
Seat Belt Reminders . . . . . . . . . . . 111
Service Vehicle Soon . . . . . . . . . .115
StabiliTrak OFF . . . . . . . . . . . . . . . .118
Tire Pressure . . . . . . . . . . . . . . . . . .119
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . .119
Traction Off . . . . . . . . . . . . . . . . . . . .118
Ultrasonic Parking Sensor . . . . .118
Up-Shift . . . . . . . . . . . . . . . . . . . . . . .117
Warning, Power Steering . . . . . .117
Load Compartment . . . . . . . . . . . . . 100
Locks Automatic Door . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . 40
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Lockout Protection . . . . . . . . . . . . . . 40
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Loss of Control . . . . . . . . . . . . . . . . . 173
Low Fuel Warning Light . . . . . . . . . 120
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 86
Lumbar Adjustment . . . . . . . . . . . . . . 56 Front Seats . . . . . . . . . . . . . . . . . . . . . 56

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-11373973) -
2018 - crc - 10/9/17
346 Index
StrutsGas . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 176
Summer Tires . . . . . . . . . . . . . . . . . . 252
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 51
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 205
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 110
TaillampsBulb Replacement . . . . . . . . . . . . 242
Text Telephone (TTY) Users . . . . 314
Theft-Deterrent Systems . . . . . . . . . 46 Immobilizer . . . . . . . . . . . . . . . . . . . . . 45
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 All-Season . . . . . . . . . . . . . . . . . . . . 251
Buying New Tires . . . . . . . . . . . . . 265
Chains . . . . . . . . . . . . . . . . . . . . . . . . 270
Changing . . . . . . . . . . . . . . . . . . . . . 272
Compact Spare . . . . . . . . . . . . . . . 276
Designations . . . . . . . . . . . . . . . . . 255
Different Size . . . . . . . . . . . . . . . . . 267
If a Tire Goes Flat . . . . . . . . . . . . 270 Tires (cont'd)
Inspection . . . . . . . . . . . . . . . . . . . . 263
Pressure . . . . . . . . . . . . . . . . . . . . . . 258
Pressure Light . . . . . . . . . . . . . . . . .119
Pressure Monitor Operation . . 260
Pressure Monitor System . . . . . 259
Rotation . . . . . . . . . . . . . . . . . . . . . . 264
Sidewall Labeling . . . . . . . . . . . . . 253
Terminology and Definitions . . 256
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 267
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 269
Wheel Replacement . . . . . . . . . . 269
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 265
Winter . . . . . . . . . . . . . . . . . . . . . . . . 252
Towing
General Information . . . . . . . . . . 212
Recreational Vehicle . . . . . . . . . . 280
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 280
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . .119
Off Light . . . . . . . . . . . . . . . . . . . . . . .118
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 198 Trademarks and License
Agreements . . . . . . . . . . . . . . . . . . . 163
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 191
Fluid, Automatic . . . . . . . . . . . . . . 225
Fluid, Manual . . . . . . . . . . . . . . . . . 226
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 317
Trip Odometer . . . . . . . . . . . . . . . . . . 110
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 135
Turn Signal Bulb Replacement . . . . . . . . . . . . 242
U
Ultrasonic Parking SensorLight . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Uniform Tire Quality Grading . . . 267
Up-Shift Light . . . . . . . . . . . . . . . . . . . 117
USB Port . . . . . . . . . . . . . . . . . . . . . . . 147
Using the System . . . . . . . . . . . . . . . 142
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 44
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 172