
Black plate (18,1)Chevrolet Sonic Owner Manual - 2013 - 2nd PrintReady - 10/11/12
10-18 Vehicle Care
{WARNING
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or others
could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant.
Notice: In cold weather, water
can freeze and crack the engine,
radiator, heater core and other
parts. Use the recommended
coolant and the proper coolant
mixture.
{WARNING
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
1.4L Engine Shown, 1.8L Engine
Similar
1. Remove the coolant surge tank pressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about
one-quarter of a turn. If you hear a hiss, wait for that to stop. This
will allow any pressure still left to
be vented out the
discharge hose.
2. Keep turning the pressure cap slowly and remove it.
3. Fill the coolant surge tank withthe proper DEX-COOL coolant
mixture to the indicated
level mark.

Black plate (19,1)Chevrolet Sonic Owner Manual - 2013 - 2nd PrintReady - 10/11/12
Vehicle Care 10-19
4. With the coolant surge tankpressure cap off, start the
engine and let it run until you
can feel the upper radiator hose
getting hot. Watch out for the
engine cooling fan.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
DEX-COOL coolant mixture to
the coolant surge tank until the
level reaches the indicated
level mark.
5. Replace the pressure cap tightly.
Check the level in the coolant surge
tank when the cooling system has
cooled down. If the coolant is
not at the proper level, repeat
Steps 1–3 and reinstall the pressure
cap. If the coolant still is not at the
proper level when the system cools
down again, see your dealer.Engine Overheating
The vehicle has an indicator to warn
of the engine overheating.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program on
page 13‑5.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fan is running. If the engine
is overheating, the fan should be
running. If it is not, do not continue
to run the engine. Have the vehicle
serviced.
Notice: Running the engine
without coolant may cause
damage or a fire. Vehicle damage
would not be covered by the
warranty.
If Steam Is Coming from the
Engine Compartment
{WARNING
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.

Black plate (20,1)Chevrolet Sonic Owner Manual - 2013 - 2nd PrintReady - 10/11/12
10-20 Vehicle Care
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest
fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral) for an
automatic transmission or
Neutral for a manual
transmission while stopped. If it
is safe to do so, pull off the road,
shift to P (Park) or N (Neutral) for an automatic transmission or
Neutral for a manual
transmission, and let the
engine idle.
If the overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Washer Fluid
What to Use
When the vehicle needs windshield
washer fluid, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an area where the temperature may fall
below freezing, use a fluid that has
sufficient protection against
freezing.
Adding Washer Fluid
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See
Engine
Compartment Overview on
page 10‑6 for reservoir location.
Notice
.When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
.Do not mix water with
ready-to-use washer fluid.
Water can cause the solution

Black plate (4,1)Chevrolet Sonic Owner Manual - 2013 - 2nd PrintReady - 10/11/12
i-4 INDEX
E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-38
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-33
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-32
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-37
Overload . . . . . . . . . . . . . . . . . . . 10-32
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . 10-13
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-12
Compartment Overview . . . . . . . 10-6
Coolant . . . . . . . . . . . . . . . . . . . . . 10-16
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 5-18
Cooling System . . . . . . . . . . . . . 10-15
Drive Belt Routing . . . . . . . . . . . . 12-3
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-20
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-17
Oil Life System . . . . . . . . . . . . . .10-11 Engine (cont'd)
Overheating . . . . . . . . . . . . . . . . 10-19
Pressure Light . . . . . . . . . . . . . . . . 5-19
Reduced Power Light . . . . . . . . . 5-20
Running While Parked . . . . . . . . 9-21
Starting . . . . . . . . . . . . . . . . . . 1-4, 9-16
Event Data Recorders . . . . . . . . 13-14
Extender, Safety Belt . . . . . . . . . . 3-15
Exterior Lamp Controls . . . . . . . . . 6-1
F
Filter, Engine Air Cleaner . . . . . . . . . 10-13
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-3
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-59 Changing . . . . . . . . . . . . . . . . . . . 10-68
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-86
Fluid Automatic Transmission . . . . 10-13
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-22
Washer . . . . . . . . . . . . . . . . . . . . . 10-20
Fog Lamps Bulb Replacement . . . . . . 10-29, 6-4
Folding Mirrors . . . . . . . . . . . . . . . . 2-13 Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Front Seat Armrest . . . . . . . . . . . . . 3-5
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-33
Additives . . . . . . . . . . . . . . . . . . . . . 9-35
Economy Driving . . . . . . . . . . . . . 1-19
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-37
Filling the Tank . . . . . . . . . . . . . . . 9-36
Foreign Countries . . . . . . . . . . . . 9-34
Gasoline Specifications . . . . . . . 9-34
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Low Fuel Warning Light . . . . . . . 5-19
Recommended . . . . . . . . . . . . . . . 9-33
Requirements, California . . . . . 9-34
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-33
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-32
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-37

Black plate (7,1)Chevrolet Sonic Owner Manual - 2013 - 2nd PrintReady - 10/11/12
INDEX i-7
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . .11-15
Maintenance Schedule Recommended Fluidsand Lubricants . . . . . . . . . . . . .11-12
Malfunction Indicator Lamp . . . . 5-12
Manual Mirrors . . . . . . . . . . . . . . . . 2-13
Manual Mode . . . . . . . . . . . . . . . . . . 9-23
Manual Transmission . . . . . . . . . . 9-24 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-13
Manual Windows . . . . . . . . . . . . . . 2-15
Messages Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-25
Mirrors Blind Spot . . . . . . . . . . . . . . . . . . . . 2-13
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-12
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-13
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-13
Manual . . . . . . . . . . . . . . . . . . . . . . . 2-13
Manual Rearview . . . . . . . . . . . . . 2-15
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-48
Movies . . . . . . . . . . . . 7-50, 7-55, 7-56
Multi-band Antenna . . . . . . . . . . . . 7-18
N
Navigation
OnStar®. . . . . . . . . . . . . . . . . . . . . . 14-2
New Vehicle Break-In . . . . . . . . . . 9-13
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 5-9 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-4
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . .10-11
Pressure Light . . . . . . . . . . . . . . . . 5-19
Older Children, Restraints . . . . . 3-30
Online Owner Center . . . . . . . . . . 13-4
OnStar
®
System, In Brief . . . . . . . . . . . . . . 1-20
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . 14-5
OnStar
®Connections . . . . . . . . . . 14-3
OnStar®Diagnostics . . . . . . . . . . . 14-5
OnStar®Emergency . . . . . . . . . . . 14-2
OnStar®Navigation . . . . . . . . . . . . 14-2
OnStar®Overview . . . . . . . . . . . . . 14-1
OnStar®Security . . . . . . . . . . . . . . 14-2 Operation, Infotainment
System . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Ordering Service Publications . . . . . . . . .13-11
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Overheating, Engine . . . . . . . . . . 10-19
Overview,
Infotainment
System . . . . . . . . . . . . . . . 7-3, 7-5, 7-7
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . 9-18
Shifting Out of . . . . . . . . . . . . . . . . 9-19
Parking . . . . . . . . . . . . . . . . . . . . . . . . 9-20 Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
Brake and P (Park)Mechanism Check . . . . . . . . 10-25
Over Things That Burn . . . . . . . 9-20
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 5-11
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Passenger Sensing System . . . 3-24