stop start CHEVROLET CAMARO 2021 Owner's Guide

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583589) - 2021 - CRC - 10/1/20
Driving and Operating 201
Mode. The instruments and audio systems
will operate as they do in ON/RUN, but the
vehicle will not be able to be driven. The
engine will not start in Service Mode. Press
the button again to turn the vehicle off.
Starting the Engine
Place the transmission in the proper gear.
Caution
If you add electrical parts or accessories,
you could change the way the engine
operates. Any resulting damage would
not be covered by the vehicle warranty.
SeeAdd-On Electrical Equipment 0233.
Automatic Transmission
Move the shift lever to P (Park) or
N (Neutral). To restart the vehicle when it is
already moving, use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you could
damage the transmission. Shift to P (Park)
only when the vehicle is stopped. Manual Transmission
The shift lever should be in Neutral and the
parking brake engaged. Hold the clutch
pedal down to the floor, press the brake
pedal, and start the engine.
Starting the Vehicle
The RKE transmitter must be inside the
vehicle for the ignition to work.
Cell phone chargers can interfere with the
operation of the Keyless Access system.
Battery chargers should not be plugged in
when starting or turning off the engine.
To start the vehicle:
1. For vehicles with an automatic transmission, press the brake pedal, then
press ENGINE START/STOP on the
instrument panel. For a manual
transmission, place the shift lever in
Neutral with the parking brake engaged.
Hold the clutch pedal down to the floor,
press the brake pedal, then press ENGINE
START/STOP.
If there is no RKE transmitter in the
vehicle or if there is something causing
interference with it, the Driver
Information Center (DIC) will display a
message. 2. When the engine begins cranking, let go
of the button and the engine cranks
automatically until it starts. If the
battery in the RKE transmitter is weak,
the DIC will display a message. The
vehicle can still be driven.
See “Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System Operation 07
. If the RKE transmitter battery is dead,
insert it into the rear cupholder to
enable engine starting.
3. Do not race the engine immediately after starting it. Operate the engine and
transmission gently until the oil warms
up and lubricates all moving parts.
4. If the engine does not start and no DIC message is displayed, wait 15 seconds
before trying again to let the cranking
motor cool down.
If the engine does not start after five to
10 seconds, especially in very cold
weather (below −18 °C or 0 °F), it could
be flooded with too much gasoline. Try
pushing the accelerator pedal all the way
to the floor while cranking for up to
15 seconds maximum. Wait at least
15 seconds between each try, to allow
the cranking motor to cool down. When

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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202 Driving and Operating
the engine starts, let go of the
accelerator. If the vehicle starts briefly
but then stops again, repeat these steps.
This clears the extra gasoline from the
engine.
Caution
Cranking the engine for long periods of
time, by returning the ignition to the
START position immediately after
cranking has ended, can overheat and
damage the cranking motor, and drain
the battery. Wait at least 15 seconds
between each try, to let the cranking
motor cool down.
Stopping the Engine
If the vehicle has an automatic transmission,
move the shift lever to P (Park) and press
and hold ENGINE START/STOP on the
instrument panel, until the engine shuts off.
If the shift lever is not in P (Park), the
engine shuts off and the ignition goes to
ACC/ACCESSORY. The DIC displays SHIFT TO
PARK. Once the shift lever is moved to
P (Park), the vehicle turns off.
If the vehicle has a manual transmission,
before getting out of the vehicle, shift to
1 (First) or R (Reverse) and apply the parkingbrake. Then turn off the ignition off by
pressing ENGINE START/STOP and release
the clutch pedal when the engine has
stopped.
If the RKE transmitter is not detected inside
the vehicle when it is turned off the DIC
displays a message.
Engine Heater
{Warning
Do not plug in the engine block heater
while the vehicle is parked in a garage or
under a carport. Property damage or
personal injury may result. Always park
the vehicle in a clear open area away
from buildings or structures.
If equipped, the engine heater can help in
cold weather conditions at or below −18 °C
(0 °F) for easier starting and better fuel
economy during engine warm-up. Plug in
the coolant heater at least four hours before
starting the vehicle. An internal thermostat
in the plug end of the cord will prevent
engine heater operation at temperatures
above −18 °C (0 °F).
Using the Engine Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord.
The electrical cord is on the passenger
side of the engine compartment, next to
the engine compartment fuse block.
Check the heater cord for damage. If it is
damaged, do not use it. See your dealer
for a replacement. Inspect the cord for
damage yearly.
3. Plug it into a normal, grounded 110-volt AC outlet.

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583589) - 2021 - CRC - 10/1/20
Driving and Operating 207
R :Use this gear to back up.
Caution
Shifting to R (Reverse) while the vehicle is
moving forward could damage the
transmission. The repairs would not be
covered by the vehicle warranty. Shift to
R (Reverse) only after the vehicle is
stopped.
To rock the vehicle back and forth to get
out of snow, ice, or sand without damaging
the transmission, see If the Vehicle Is Stuck
0 195.
N : In this position, the engine does not
connect with the wheels. To restart the
engine when the vehicle is already moving,
use N (Neutral) only.
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is firmly on
the brake pedal, the vehicle could move
very rapidly. You could lose control and
hit people or objects. Do not shift into a
drive gear while the engine is running at
high speed.
Caution
Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may
damage the transmission. The repairs
would not be covered by the vehicle
warranty. Be sure the engine is not
running at high speed when shifting the
vehicle.
Caution
A transmission hot message may display
if the automatic transmission fluid is too
hot. Driving under this condition can
damage the vehicle. Stop and idle the
engine to cool the automatic
transmission fluid. This message clears
when the transmission fluid has cooled
sufficiently.
D : This position is for normal driving.
If more power is needed for passing, press
the accelerator pedal down.
Powertrain Braking
When driving on steep descents with the
shift lever in D (Drive) where frequent
braking is required, the transmission will
shift down a gear to help hold vehicle speed and reduce brake wear. If the brake
continues to be pressed, the transmission
will downshift until the correct gear for
optimal braking is reached.
If the road levels out and the accelerator
pedal is pressed, the transmission will
upshift until the appropriate gear is reached.
Caution
If the vehicle does not shift gears, the
transmission could be damaged. Have the
vehicle serviced right away.
Performance Shifting
While driving in Sport Mode (L4, if equipped
or V6, if equipped), or Sport Mode and Track
Mode (V8, if equipped), if Tap Shift has not
been activated, the transmission determines
when the vehicle is being driven in a
competitive manner. The transmission may
remain in a gear longer than it would in the
normal driving mode based on throttle input
and vehicle lateral acceleration. If there is a
rapid reduction in throttle from a heavy
throttle position at high rpm, the
transmission will maintain the current gear
up to near redline rpm. While braking, the
transmission will automatically downshift to
the next lower gear keeping engine speed

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 211
To stop, let up on the accelerator pedal and
press the brake pedal. Just before the
vehicle stops, press the clutch pedal and the
brake pedal, and shift to Neutral.
Neutral :Use this position when starting or
idling the engine. The shift lever is in
Neutral when it is centered in the shift
pattern, not in any gear.
R : To back up, press the clutch pedal to the
floor and shift into R (Reverse). Let up on
the clutch pedal slowly while pressing the
accelerator pedal.
One to Four Shift Message (V8 Only)
When this message comes on, the vehicle
can only be shifted from 1 (First) to
4 (Fourth) instead of 1 (First) to 2 (Second).
The message will display in the Driver
Information Center (DIC).
Complete the shift into 4 (Fourth) to turn off
this feature. This helps to get the best
possible fuel economy.
After shifting to 4 (Fourth), downshift to a
lower gear, if desired.
Caution
Forcing the shift lever into any gear
except 4 (Fourth) when the 1-4 SHIFT
message comes on may damage the
transmission. Shift only from 1 (First) to
4 (Fourth) when the message comes on.
This message will come on when:
.The engine coolant temperature is higher
than 76 °C (169 °F).
.The vehicle is accelerating from a stop
and going 24 to 31 km/h (15 to 19 mph).
.The vehicle is at 33% throttle or less.
Once displayed, the message will remain in
the DIC for two seconds, even if the
conditions for skip shift are no longer
satisfied. Vehicles equipped with a Head-Up Display
(HUD) may also have performance shift
timing lights across the top of the display.
The rows of lights get closer together as the
maximum shift point gets closer. Shift the
transmission before the lights come together
in the display. Shift immediately if the lights
are flashing.
See
Head-Up Display (HUD) 0100.
Active Rev Match
Vehicles equipped with a V8 engine and a
manual transmission have Active Rev Match
(ARM). ARM aids in smoother shifting by
matching the engine speed to the next
selected gear. By monitoring shift lever and
clutch operation, ARM adjusts engine speed
to match a calibrated value based on gear
selection. On upshifts and downshifts,
engine speed will be decreased and
increased to match vehicle road speed and
transmission gear position. ARM is
maintained while the clutch pedal is pressed,
but will deactivate if the shift lever is left in
the Neutral position.

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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214 Driving and Operating
Caution
Driving with the parking brake on can
overheat the brake system and cause
premature wear or damage to brake
system parts. Make sure that the parking
brake is fully released and the brake
warning light is off before driving.
Automatic EPB Release
The EPB will automatically release if the
vehicle is running, placed into gear, and an
attempt is made to drive away. Avoid rapid
acceleration when the EPB is applied, to
preserve parking brake lining life.
The EPB can also be used to prevent roll
back for vehicles with a manual transmission
taking off on a hill. When no roll back is
desired, an applied EPB will allow both feet
to be used for the clutch and accelerator
pedals in preparation for starting the vehicle
moving in the intended direction. In this
case, there is no need to press the switch to
release the EPB.]
Brake Assist
Brake Assist detects rapid brake pedal
applications due to emergency braking
situations and provides additional braking toactivate the Antilock Brake System (ABS) if
the brake pedal is not pushed hard enough
to activate ABS normally. Minor noise, brake
pedal pulsation, and/or pedal movement
during this time may occur. Continue to
apply the brake pedal as the driving
situation dictates. Brake Assist disengages
when the brake pedal is released.
Hill Start Assist (HSA)
{Warning
Do not rely on the HSA feature. HSA does
not replace the need to pay attention
and drive safely. You may not hear or
feel alerts or warnings provided by this
system. Failure to use proper care when
driving may result in injury, death,
or vehicle damage. See
Defensive Driving
0 182.
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). 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.

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 215
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 the vehicle
wheel brakes to assist the driver in keeping
the vehicle on the intended path.
If cruise control is being used and traction
control 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. SeeIf the
Vehicle Is Stuck 0195 and “Turning the
Systems Off and On” later in this section.
The indicator light for both systems is in the
instrument cluster. This light will:
.Flash when TCS is limiting wheel spin
.Flash when StabiliTrak/ESC is activated
.Turn on and stay on when either system
is not working
If either system fails to turn on or to
activate, a message displays in the Driver
Information Center (DIC), and
dcomes on
and stays on to indicate that the system is
inactive and is not assisting the driver in
maintaining control. The vehicle is safe to
drive, but driving should be adjusted
accordingly.
If
dcomes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine. Drive the vehicle. If
dcomes on and stays
on, the vehicle may need more time to
diagnose the problem. If the condition
persists, see your dealer.
Turning the Systems Off and On
Caution
Do not repeatedly brake or accelerate
heavily when TCS is off. The vehicle
driveline could be damaged.
To turn off only TCS, press and release
Y.
The traction off light
idisplays in the
instrument cluster.

Chevrolet Camaro Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 251
{Warning
Spilling coolant on hot engine parts can
burn you. Coolant contains ethylene
glycol and it will burn if the engine parts
are hot enough.
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.
1. Remove the coolant surge tank pressurecap from the top chamber 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. 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. Open the surge tank service
port cap to the lower chamber.3. Fill the surge tank top chamber with theproper mixture to the bottom of the fill
neck. The top chamber needs to be
completely full. Fill the surge tank
bottom chamber through the service port
to approximately half. 4. With the coolant surge tank pressure cap
off and the surge tank service port cap
open, 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 top chamber may be
lower. If the level is lower, add more of
the proper mixture to the surge tank top
chamber until the level reaches the
bottom of the fill neck.
5. Replace the surge tank pressure cap tightly and close the surge tank service
port cap.
Caution
If the pressure cap is not tightly installed,
coolant loss and engine damage may
occur. Be sure the cap is properly and
tightly secured.
Check the level in the surge tank top and
bottom chambers when the cooling system
has cooled down. If the coolant is not at the
proper levels, repeat Steps 1–3 and reinstall
the pressure cap and close the service port.

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260 Vehicle Care
3. Turn the bulb socket counterclockwise toremove it.
4. Pull the old bulb straight out of the bulb socket.
5. Push the new bulb straight into the bulb socket until it clicks.
6. Turn the bulb socket clockwise to reinstall.
7. Install the three pushpin fasteners and cover.
License Plate Lamp
To replace one of these bulbs:
1. Unclip the license plate lamp from thefascia opening. 2. Pull the license plate lamp down through
the fascia opening.
3. Turn the bulb socket counterclockwise and pull the bulb straight out of the
lamp socket.
4. Install the new bulb.
5. Push the bulb straight into the socket and turn clockwise to reinstall.
6. Reinstall the license plate lamp by lifting it through the fascia opening until the
clip is in place.
Electrical System
Electrical System Overload
The vehicle has fuses and circuit breakers to
protect against an electrical system
overload.
When the current electrical load is too
heavy, the circuit breaker opens and closes,
protecting the circuit until the current load
returns to normal or the problem is fixed.
This greatly reduces the chance of circuit
overload and fire caused by electrical
problems.
Fuses and circuit breakers protect power
devices in the vehicle. Replace a bad fuse with a new one of the
identical size and rating.
If there is a problem on the road and a fuse
needs to be replaced, the same amperage
fuse can be borrowed. Choose some feature
of the vehicle that is not needed to use and
replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause the lamps
to go on and off, or in some cases to
remain off. Have the headlamp wiring
checked right away if the lamps go on and
off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy
snow or ice, the windshield wipers will stop
until the motor cools and will then restart.
Although the circuit is protected from
electrical overload, overload due to heavy
snow or ice may cause wiper linkage
damage. Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an electrical
problem and not snow or ice, be sure to get
it fixed.

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Vehicle Care 275
High Speed Operation Inflation Pressures
Tire Size Cold Inflation Pressure kPa (psi)
245/40ZR20 (95Y) 280 kPa (41 psi) 275/35ZR20 (98Y) 280 kPa (41 psi)
Return the tires to the recommended cold
tire inflation pressure when high-speed
driving has ended. See Vehicle Load Limits
0 196 and
Tire Pressure 0273.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS)
uses radio and sensor technology to check
tire pressure levels. The TPMS sensors
monitor the air pressure in your tires and
transmit tire pressure readings to a receiver
located in the vehicle.
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure
recommended by the vehicle manufacturer
on the vehicle placard or tire inflation
pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle placard or tire inflation pressure
label, you should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure
monitoring system (TPMS) that illuminates a
low tire pressure telltale when one or more
of your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle's handling and stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance, and
it is the driver's responsibility to maintain
correct tire pressure, even if under-inflationhas not reached the level to trigger
illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined
with the low tire pressure telltale. When the
system detects a malfunction, the telltale
will flash for approximately one minute and
then remain continuously illuminated. This
sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists.
When the malfunction indicator is
illuminated, the system may not be able to
detect or signal low tire pressure as
intended. TPMS malfunctions may occur for
a variety of reasons, including the
installation of replacement or alternate tires
or wheels on the vehicle that prevent the

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276 Vehicle Care
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on
your vehicle to ensure that the replacement
or alternate tires and wheels allow the
TPMS to continue to function properly.
SeeTire Pressure Monitor Operation 0276.
See Radio Frequency Statement 0331.
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure
Monitor System (TPMS). The TPMS is
designed to warn the driver when a low tire
pressure condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire and
wheel assembly. The TPMS sensors monitor
the air pressure in the tires and transmit the
tire pressure readings to a receiver located
in the vehicle.
When a low tire pressure condition is
detected, the TPMS illuminates the low tire
pressure warning light on the instrument
cluster. If the warning light comes on, 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 0196.
A message to check the pressure in a
specific tire displays in the Driver
Information Center (DIC). The low tire
pressure warning light and the DIC warning
message come on at each ignition cycle
until the tires are inflated to the correct
inflation pressure. Using the DIC, tire
pressure levels can be viewed. For additional
information and details about the DIC
operation and displays see Driver
Information Center (DIC) 097.
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 could be an early indicator
that the air pressure is getting low and
needs to be inflated to the proper pressure.
A Tire and Loading Information label,
attached to your vehicle, shows the size of
the original equipment tires and the correct
inflation pressure for the tires when they are cold. See
Vehicle Load Limits 0196, for
an example of the Tire and Loading
Information label and its location. Also see
Tire Pressure 0273.
The TPMS can warn about a low tire
pressure condition but it does not replace
normal tire maintenance. See Tire Inspection
0 279, Tire Rotation 0279 and
Tires 0267.
Caution
Tire sealant materials are not all the
same. A non-approved tire sealant could
damage the TPMS sensors. TPMS sensor
damage caused by using an incorrect tire
sealant is not covered by the vehicle
warranty. Always use only the GM
approved tire sealant available through
your dealer or included in the vehicle.
Factory-installed Tire Inflator Kits use a GM
approved liquid tire sealant. Using
non-approved tire sealants could damage the
TPMS sensors. See Tire Sealant and
Compressor Kit 0286 for information
regarding the inflator kit materials and
instructions.