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Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 223
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 080.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner ’s manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see
Publication Ordering Information
0 322.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 080.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 227
1.Engine Air Cleaner/Filter 0231.
2. Engine Oil Dipstick. See Engine Oil 0227.
3. Engine Cooling Fan (Out of View). See Cooling System
0 232.
4. Engine Oil Fill Cap. See Engine Oil 0227.
5. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0232.
6. Brake/Clutch Fluid Reservoir. See Brake Fluid 0238 and
Hydraulic Clutch 0231.
7. Battery - North America 0239.
8. Windshield Washer Fluid Reservoir. See Washer Fluid
0 237.
9. Engine Compartment Fuse
Block 0249.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0229.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
If the engine oil pressure light
comes on, check the engine oil level
right away. The oil pressure light is
on the instrument cluster. See
Engine Oil Pressure Light 0123.
Check the engine oil level regularly;
this is an added reminder.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially
prior to a long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview
0 226 for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 235
Caution
Failure to follow the specific
coolant fill procedure could cause
the engine to overheat and could
cause system damage. If coolant
is not visible in the surge tank,
contact your dealer.
If no problem is found, check to see
if coolant is visible in the coolant
surge tank. If coolant is visible but
the coolant level is not at the
indicated level mark, add a 50/
50 mixture of clean, drinkable water
and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system, including the
coolant surge tank pressure cap, is
cool before you do it.
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 mixture to the
indicated level mark.
4. With the coolant surge tank pressure 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
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.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 241
Automatic Transmission
Shift Lock Control
Function Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface.
2. Apply the parking brake. Be ready to apply the regular
brake immediately if the vehicle
begins to move.
3. With the engine off, turn the ignition on, but do not start the
engine. Without applying the
regular brake, try to move the
shift lever out of P (Park) with normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Ignition Transmission
Lock Check
If equipped with Key Access, while
parked, and with the parking brake
set, try to turn the ignition off in
each shift lever position.
.
For automatic transmission
vehicles, the ignition should turn
off only when the shift lever is in
P (Park).
. For manual transmission
vehicles, the ignition should turn
off only when the shift lever is in
Neutral.
On all Key Access vehicles, the
ignition key should come out only
when the ignition is off.
Contact your dealer if service is
required.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the parking brake.
. To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
242 Vehicle Care
.To check the P (Park)
mechanism's holding ability:
With the engine running, shift to
P (Park). Then release the
parking brake followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Front Wiper Blade
Replacement
Windshield wiper blades should be
inspected for wear or cracking. See
the Maintenance Schedule 0297 for
more information.
Replacement blades come in
different types and are removed in
different ways. For proper
windshield wiper blade length and
type, see Maintenance
Replacement Parts 0307.
Caution
Allowing the wiper arm to touch
the windshield when no wiper
blade is installed could damage
the windshield. Any damage that
occurs would not be covered by
the vehicle warranty. Do not allow
the wiper arm to touch the
windshield.
To replace the windshield wiper
blade: 1. Pull the windshield wiper assembly away from the
windshield.
2. Squeeze the tabs on each sideof the wiper blade assembly
and slide the assembly off the
end of the wiper arm.
3. Install the new blade onto the
arm and make sure the tabs
are fully set in the locked
position.
4. Repeat the steps for the other wiper.
Rear Wiper Blade Replacement

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 245
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing
procedure not listed in this section,
contact your dealer.
Caution
Do not replace incandescent
bulbs with aftermarket LED
replacement bulbs. This can
cause damage to the vehicle
electrical system.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
Headlamps and Front
Turn Signal
Passenger Side Shown, DriverSide Similar
1. Turn Signal Lamp
2. Low-Beam Headlamp
3. High-Beam Headlamp
High-Beam Headlamp/
Low-Beam Headlamp
1. Open the hood. See Hood
0 224.
2. For the driver side bulb, remove the windshield washer
bottle filler neck by turning it one-quarter turn
counterclockwise and pulling it
straight up and out of the
bottle.
3. Remove the headlamp bulb
access cover.
4. Turn the bulb counterclockwise and pull straight back.
5. Disconnect the wiring harness connector from the bulb.
6. Install the new bulb in the headlamp assembly by turning
clockwise.
7. Reconnect the wiring harness connector.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
246 Vehicle Care
8. Install the headlamp bulbaccess cover.
9. For the driver side bulb, replace the windshield washer
bottle filler neck by turning it
one-quarter turn clockwise into
the bottle.
Turn Signal Lamp
1. Open the hood. See Hood
0 224.
2. Remove the turn signal lamp
bulb socket from the headlamp
assembly by turning
counterclockwise. 3. Remove the bulb from the bulb
socket by pulling it straight out.
4. Install the new bulb in the bulb socket.
5. Install the bulb socket into the headlamp assembly by turning
clockwise.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
Sedan Taillamp Shown, Hatchback
Taillamp Similar
1. Back-up Lamp
2. Stoplamp/Taillamp
3. Turn Signal Lamp
4. Taillamp
To replace one of these bulbs:
1. Open the trunk.
2. Remove the two screws, which secure the taillamp assembly.
3. Remove the taillamp assembly by pulling it straight back until
the two posts disengage from
the grommets.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 247
4. Remove the bulb socket fromthe taillamp assembly by
turning it counterclockwise.
5. Remove the bulb by pulling it straight out.
6. Install a new bulb into the bulb socket.
7. Install the bulb socket into the taillamp assembly by turning it
clockwise.
8. Install the taillamp assembly and tighten the two screws.License Plate Lamp
Lamp Assembly
Bulb Assembly
1. Bulb Socket
2. Bulb
3. Lamp Assembly
To replace one of these bulbs:
1. Push the left end of the lamp assembly toward the right.
2. Turn the lamp assembly down to remove it.
3. Turn the bulb socket (1) counterclockwise to remove it
from the lamp assembly (3).
4. Pull the bulb (2) straight out of the bulb socket (1).
5. Push the replacement bulb straight into the bulb socket
and turn the bulb socket
clockwise to install it into the
lamp assembly.
6. Turn the lamp assembly into the lamp assembly opening
engaging the clip side first.
7. Push on the lamp side opposite the clip until the lamp assembly
snaps into place.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
Vehicle Care 249
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.Engine Compartment
Fuse BlockThe vehicle may not be equipped
with all of the fuses, relays, and
features shown.Mini Fuses Usage
1 Antilock brake system valve
2 Sunroof
4 Rear fog lamp
5 Outside mirror/ Power window
switch
6 Automatic occupant
sensing/ROS
7 Passive entry/ Passive start
8 Regulated voltage control
9 Rear wiper
10 Intelligent battery sensor
11 Rear window defogger
12 Electric steering column lock

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-12461769) -
2019 - crc - 5/21/18
250 Vehicle Care
Mini Fuses Usage14 Heated outside mirror
15 Front heated seats
16 Fuel system control module 1
17 Canister vent
18 Washer
20 Engine control module 5
21 Fuel system control module 2/Leveling
22 Transmission control module 1/
DC DC converter
24 Engine control module 1
25 Coil
26 Engine control module 4
27 Engine control module 3
28 Engine control module 2 Mini Fuses Usage
29 Injector/Ignition coil
30 Engine control module
31 Air conditioning clutch
32 Transmission control module
33 Horn
34 Front fog lamps
35 Left high-beam headlamp
36 Right high-beam headlamp
J-Case Fuses Usage
1 Front wipers
2 Antilock brake system pump
3 Blower
4 Run/Crank IEC
5 Power seat J-Case
Fuses Usage
6 Cooling fan K4
7 Cooling fan K5
9 Electric vacuum pump
10 Start
Relays Usage RLY 1 Front wiper control
RLY 2 Rear fog lamp
RLY 3 Front wiper speed
RLY 4 Rear defogger
RLY 5 Run/Crank
RLY 9 Cooling fan K2
RLY 10 Cooling fan K3 RLY 11 P/T
RLY 12 Start
RLY 13 Air conditioning clutch
RLY 14 High-beam headlamps