2020 CHEVROLET SONIC brakes

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Driving and Operating 173
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, turn off the vehicle
only in an emergency.
In an emergency, if the vehicle
cannot be pulled over and must be
turned off while driving: 1. Push the key all the way in toward the steering column,
then turn the key to ACC/
ACCESSORY.
2. Brake using firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
3. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. Continue
braking and steer the vehicle to
a safe location.
4. Come to a complete stop. 5. Shift to P (Park).
6. Push the key all the way in
toward the steering column (1),
then turn the ignition to
LOCK/OFF (2).
7. Set the parking brake. See Parking Brake 0184.
8. Remove the key.
9. Release the brake pedal.
Caution
Use the correct key, make sure it
is all the way in —or pushed all
the way in toward the steering
column when turning off the
vehicle —and turn it only with
your hand.
1 (ACC/ACCESSORY) : This
position allows features such as the
infotainment system to operate
while the vehicle is off. It also
unlocks the steering column,
if equipped with a locking steering
column. Use this position if the vehicle must be pushed or towed.
See
Retained Accessory Power
(RAP) 0177.
From ON/RUN, push the key all the
way in toward the steering column,
then turn the key to ACC/
ACCESSORY.
If the key is left in ACC/
ACCESSORY with the engine off,
the battery could drain and the
vehicle may not start.
A warning chime will sound when
the driver door is opened and the
key is in the ignition.
2 (ON/RUN) : This position can be
used to operate the electrical
accessories and to display some
instrument cluster warning and
indicator lights. This position can
also be used for service and
diagnostics, and to verify the proper
operation of the malfunction
indicator lamp as may be required
for emission inspection purposes.
The switch stays in this position
when the engine is running. The
transmission is also unlocked in this
position on automatic transmission
vehicles.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Driving and Operating 183
While using manual mode, the
transmission will have firmer shifting
and sportier performance. You can
use this for sport driving or when
climbing hills to stay in gear longer
or to downshift for more power or
engine braking.
The transmission will only allow you
to shift into gears appropriate for the
vehicle speed and engine
revolutions per minute (rpm):
.The transmission will not
automatically shift to the next
higher gear if the vehicle speed
or engine rpm is too low.
. The transmission will not allow
shifting to the next lower gear if
the vehicle speed or engine rpm
is too high.Brakes
Antilock Brake
System (ABS)
The Antilock Brake System (ABS)
helps prevent a braking skid and
maintain steering while
braking hard.
ABS performs a system check when
the vehicle is first driven.
A momentary motor or clicking noise
may be heard while this test is going
on, and the brake pedal may move
slightly. This is normal.
If there is a problem with ABS, this
warning light stays on. See Antilock
Brake System (ABS) Warning Light
0 103. ABS does not change the time
needed to get a foot on the brake
pedal and does not always
decrease stopping distance. If you
get too close to the vehicle ahead,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room ahead to stop,
even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly.
Hearing or feeling ABS operate is
normal.
Braking in Emergencies
ABS allows steering and braking at
the same time. In many
emergencies, steering can help
even more than braking.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Driving and Operating 185
When the vehicle is stopped on a
grade, Hill Start Assist (HSA)
temporarily prevents the vehicle
from rolling in an unintended
direction during the transition from
brake pedal release to accelerator
pedal apply. The brakes release
when the accelerator pedal is
applied or automatically release
after a few seconds. The brakes
may also release under other
conditions. Do not rely on HSA to
hold the vehicle.
HSA is available when the vehicle is
facing uphill in a forward gear,
or when facing downhill in
R (Reverse). The vehicle must
come to a complete stop on a grade
for HSA to activate.Ride Control Systems
Traction Control/
Electronic Stability
Control
System Operation
The vehicle has a Traction Control
System (TCS) and StabiliTrak/
Electronic Stability Control (ESC),
an electronic stability control
system. These systems help limit
wheel slip and assist the driver in
maintaining control, especially on
slippery road conditions.
TCS activates if it senses that any
of the drive wheels are spinning or
beginning to lose traction. When this
happens, TCS applies the brakes to
the spinning wheels and reduces
engine power to limit wheel spin.
StabiliTrak/ESC activates when the
vehicle senses a difference between
the intended path and the direction
the vehicle is actually traveling.
StabiliTrak/ESC selectively applies
braking pressure to any one of thevehicle wheel brakes to assist the
driver in keeping the vehicle on the
intended path.
If cruise control is being used and
TCS or StabiliTrak/ESC begins to
limit wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road
conditions allow.
Both systems come on
automatically when the vehicle is
started and begins to move. The
systems may be heard or felt while
they are operating or while
performing diagnostic checks. This
is normal and does not mean there
is a problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary
to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow.
See
If the Vehicle Is Stuck 0165
and “Turning the Systems Off and
On” later in this section.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
Driving and Operating 187
To turn off both TCS and StabiliTrak/
ESC, press and hold
guntil the
traction off light
iand StabiliTrak/
ESC OFF light
gcome on and stay
on in the instrument cluster. The
appropriate message may display in
the DIC.
To turn TCS and StabiliTrak/ESC on
again, press and release
g. The
traction off light
iand StabiliTrak/
ESC OFF light
gin the instrument
cluster turn off.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications
0 204.
Cruise Control
If the vehicle is equipped with cruise
control, a speed of about 40 km/h
(25 mph) or more can be maintained
without keeping your foot on the
accelerator. Cruise control does not
work at speeds below 40 km/h
(25 mph).
{Warning
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads. If the vehicle's Traction Control
System (TCS) or StabiliTrak/
Electronic Stability Control (ESC)
system begins to limit wheel spin
while using cruise control, the cruise
control will automatically disengage.
See
Traction Control/Electronic
Stability Control 0185. If a collision
alert occurs when cruise control is
activated, cruise control is
disengaged. See Forward Collision
Alert (FCA) System 0194. When
road conditions allow you to safely
use it again, the cruise control can
be turned back on.
If the brakes are applied, cruise
control disengages.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
188 Driving and Operating
o:Press to turn the cruise control
system on and off. A white indicator
comes on in the instrument cluster
when cruise is turned on.
RES/+ : If there is a set speed in
memory, move the thumbwheel up
briefly to resume to that speed or
hold upward to accelerate. If cruise
control is already active, use to
increase vehicle speed.
SET/− :Move the thumbwheel down
briefly to set the speed and activate
cruise control. If cruise control is
already active, use to decrease
speed.
n: Press to disengage cruise
control without erasing the set
speed from memory.
Setting Cruise Control
If
ois on when not in use, SET/−
or RES/+ could get bumped and go
into cruise when not desired. Keep
ooff when cruise control is not
being used.
To set cruise control:
1. Press
oto turn the cruise
system on.
2. Get to the speed desired.
3. Move the thumbwheel down to SET/− and release it.
4. Take your foot off the accelerator pedal.
The cruise control indicator on the
instrument cluster turns green after
cruise control has been set to the
desired speed. See Instrument
Cluster 095. Resuming a Set Speed
If the cruise control is set at a
desired speed and then the
brakes are applied or
nis pressed,
the cruise control is disengaged
without erasing the set speed from
memory.
Once the vehicle reaches about
40 km/h (25 mph) or more, move the
thumbwheel up toward RES/+
briefly. The vehicle returns to the
previous set speed.
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
. Move the thumbwheel up toward
RES/+ and hold it until the
desired speed is reached, then
release it.
. To increase the vehicle speed in
small increments, move the
thumbwheel up toward RES/+
briefly and then release it. For
each press, the vehicle goes
about 1 km/h (1 mph) faster.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
190 Driving and Operating
Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes
or reduce crash damage while
driving, backing, and parking. Read
this entire section before using
these systems.
{Warning
Do not rely on the Driver
Assistance Systems. These
systems do not replace the need
for paying attention and driving
safely. You may not hear or see
alerts or warnings provided by
these systems. Failure to use
proper care when driving may
result in injury, death, or vehicle
damage. SeeDefensive Driving
0 160.
Under many conditions, these
systems will not: (Continued)
Warning (Continued)
.Detect children,
pedestrians, bicyclists,
or animals.
. Detect vehicles or objects
outside the area monitored
by the system.
. Work at all driving speeds.
. Warn you or provide you
with enough time to avoid a
crash.
. Work under poor visibility or
bad weather conditions.
. Work if the detection sensor
is not cleaned or is covered
by ice, snow, mud, or dirt.
. Work if the detection sensor
is covered up, such as with
a sticker, magnet, or metal
plate.
. Work if the area surrounding
the detection sensor is
damaged or not properly
repaired.
(Continued)
Warning (Continued)
Complete attention is always
required while driving, and you
should be ready to take action
and apply the brakes and/or steer
the vehicle to avoid crashes.
Audible Alert
Some driver assistance features
alert the driver of obstacles by
beeping. To change the volume of
the warning chime, see “Comfort
and Convenience” underVehicle
Personalization 0115.
Cleaning
Depending on vehicle options, keep
these areas of the vehicle clean to
ensure the best driver assistance
feature performance. Driver
Information Center (DIC) messages
may display when the systems are
unavailable or blocked.

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
194 Driving and Operating
.The Park Assist sensors are
covered by frost or ice. Frost or
ice can form around and behind
the sensors and may not always
be seen; this can occur after
washing the vehicle in cold
weather. The message may not
clear until the frost or ice has
melted.
If the above conditions do not exist,
take the vehicle to your dealer to
repair the system.
PARK ASSIST OFF : If the RPA
system does not activate due to a
temporary condition, the message
displays on the DIC. This can occur
under the following conditions:
. An object was hanging out of the
trunk during the last drive cycle.
Once the object is removed,
RPA will return to normal
operation.
. The bumper is damaged. Take
the vehicle to your dealer to
repair the system. .
Other conditions, such as
vibrations from a jackhammer or
the compression of air brakes on
a very large truck, are affecting
system performance.
Forward Collision Alert
(FCA) System
If equipped, the FCA system may
help to avoid or reduce the harm
caused by front-end crashes. When
approaching a vehicle ahead too
quickly, FCA provides a red flashing
alert on the windshield and rapidly
beeps.
FCA detects vehicles within a
distance of approximately 60 m
(197 ft) and operates at speeds
above 40 km/h (25 mph).
{Warning
FCA is a warning system and
does not apply the brakes. When
approaching a slower-moving or
stopped vehicle ahead too rapidly,
or when following a vehicle too
(Continued)
Warning (Continued)
closely, FCA may not provide a
warning with enough time to help
avoid a crash. It also may not
provide any warning at all. FCA
does not warn of pedestrians,
animals, signs, guardrails,
bridges, construction barrels,
or other objects. Be ready to take
action and apply the brakes. See
Defensive Driving0160.
FCA can be disabled with the FCA
steering wheel control.
Detecting the Vehicle Ahead
FCA warnings will not occur unless
the FCA system detects a vehicle
ahead. When a vehicle is detected,
the vehicle ahead indicator will

Chevrolet Sonic Owner Manual (GMNA-Localizing-U.S./Canada-13566834) -
2020 - CRC - 10/4/19
202 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 203
California Proposition65 Warning . . . . . . . . . . . . . . . . . 203
California Perchlorate Materials Requirements . . . . . 204
Accessories and Modifications . . . . . . . . . . . . . . . . 204
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 204
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 205
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 207
Engine Oil . . . . . . . . . . . . . . . . . . . . 208
Engine Oil Life System . . . . . . . 210
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 211
Engine Air Cleaner/Filter . . . . . . 212
Cooling System . . . . . . . . . . . . . . 213
Engine Overheating . . . . . . . . . . 216
Washer Fluid . . . . . . . . . . . . . . . . . 217
Brakes . . . . . . . . . . . . . . . . . . . . . . . 218
Brake Fluid . . . . . . . . . . . . . . . . . . . 219
Battery - North America . . . . . . 220
Starter Switch Check . . . . . . . . . 221 Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 221
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 221
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 222
Wiper Blade Replacement . . . . 222
Windshield Replacement . . . . . 223
Gas Strut(s) . . . . . . . . . . . . . . . . . . 223
Headlamp Aiming
Front Headlamp Aiming . . . . . . 225
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 225
Halogen Bulbs . . . . . . . . . . . . . . . . 225
Headlamps and Front Turn Signal . . . . . . . . . . . . . . . . . . . . . . . 225
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 226
License Plate Lamp . . . . . . . . . . 227
Electrical System
Electrical System Overload . . . 228
Fuses and Circuit Breakers . . . 229
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 229
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 231
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 233
All-Season Tires . . . . . . . . . . . . . . 234
Winter Tires . . . . . . . . . . . . . . . . . . 234
Summer Tires . . . . . . . . . . . . . . . . 235
Tire Sidewall Labeling . . . . . . . . 235
Tire Designations . . . . . . . . . . . . . 237
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 238
Tire Pressure . . . . . . . . . . . . . . . . . 240
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 242
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 243
Tire Inspection . . . . . . . . . . . . . . . . 245
Tire Rotation . . . . . . . . . . . . . . . . . 246
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 247
Buying New Tires . . . . . . . . . . . . . 248
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 249
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 249
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 251
Wheel Replacement . . . . . . . . . . 251
Tire Chains . . . . . . . . . . . . . . . . . . . 252
If a Tire Goes Flat . . . . . . . . . . . . 253
Tire Changing . . . . . . . . . . . . . . . . 254
Compact Spare Tire . . . . . . . . . . 259