engine TOYOTA COROLLA 2021 (in English) Repair Manual

1684-2. Driving procedures
COROLLA_U
pressed.)
1OFF
*
The emergency flashers can be
used.
2ACC
Some electrical components such
as the audio system can be used.
“ACCESSORY” will be displayed
on the multi-information display.
3ON
All electrical com ponents can be
used.
“IGNITION ON” will be displayed on
the multi-information display.
*: Vehicles with a continuously vari- able transmissio n: If the shift
lever is in a position other than P
when turning off the engine, the
engine switch will be turned to
ACC, not to off.
■Auto power off function
Continuously variable transmission:
If the vehicle is le ft in ACC for more than 20 minutes or ON (the engine
is not running) for more than an
hour with the shif
t lever in P, the
engine switch will automatically turn
off. However, this function cannot
entirely prevent b attery discharge.
Do not leave the vehicle with the
engine switch in ACC or ON for long
periods of time when the engine is
not running.
Manual transmission: If the vehicle
is left in ACC for more than 20 min-
utes or ON (the engine is not run-
ning) for more than an hour, the
engine switch will automatically turn
off. However, this function cannot
entirely prevent b attery discharge.
Do not leave the vehicle with the
engine switch in ACC or ON for long
periods of time when the engine is
not running.
If the engine is stopped with the
shift lever in a position other
than P, the engine switch will not
be turned off but instead be
turned to ACC. Perform the fol-
NOTICE
■To prevent battery discharge
●Do not leave the engine switch
in ACC or ON for long periods of
time without the engine running.
●If “ACCESSORY” or “IGNITION
ON” is displayed on the
multi-information display, the
engine switch is not off. Exit the
vehicle after turning the engine
switch off.
When stopping the engine
with the shift lever in a
position other than P
(vehicles with a continu-
ously variable transmis-
sion)

1694-2. Driving procedures
4
Driving
COROLLA_U
lowing procedure to turn the
switch off:
1Check that the parking brake
is set.
2 Shift the shift lever to P.
3 Check that “ACCESSORY” is
displayed on the multi-infor-
mation display and press the
engine switch shortly and
firmly.
4 Check that “ACCESSORY”
or “IGNITION ON” on the
multi-information display are
off.
*: If equipped
*: To improve fuel efficiency and
reduce noise, shift the shift lever
to D for normal driving.
■When driving with the dynamic
radar cruise control or dynamic
radar cruise control with
full-speed range activated
Even when switching the driving
mode to sport mode with the intent
of enabling engine braking, engine
braking will not occur because
dynamic radar cruise control or
dynamic radar cruise control with
NOTICE
■To prevent battery discharge
Do not stop the engine when the
shift lever is in a position other
than P. If the engin e is stopped in
another shift lever position, the
engine switch will not be turned
off but instead be turned to ACC
mode. If the vehicle is left in ACC,
battery discharge may occur.
Continuously variable
transmission (vehi-
cles without paddle
shift switches)
*
Select the shift position
depending on your purpose
and situation.
Shift position purpose
and functions
Shift posi-
tionObjective or function
PParking the vehi-
cle/starting the engine
RReversing
N
Neutral
(Condition in which the power is not transmit- ted)
DNormal driving*
B
Applying moderate
engine braking driving down hills

1704-2. Driving procedures
COROLLA_Ufull-speed rang
e will not be can-
celed. ( P.271)
■Restraining sudden start
(Drive-Start Control)
 P. 1 5 2
■G AI-SHIFT
G AI-SHIFT automatically selects a
suitable gear for sporty driving
according to driver’s input and driv-
ing conditions. G AI-SHIFT operates
automatically when th e shift lever is
in D and sport mode is selected for
the driving mode. (Selecting normal
mode or shifting the shift lever to the
B position cancels this function.)
■After recharging/reconnecting
the battery
 P. 5 4 9
■Continuously variable transmis-
sion fail-safe control
The system detects malfunctioning
parts targeted (all of the solenoids
that perform the shifting function) by
the On-Board Diagnostics, and per-
forms fail-safe mechanisms, such
as restricting the shifting function or
transmission ratio control.
In this event, the malfunction indica-
tor lamp turns on.
:While the engine switch is in
ON and the brake pedal
depressed
*, shift the shift lever
while pushing the shift release
button on the shift knob.
:Shift the shift lever while
pushing the shift release button
on the shift knob.
:Shift the shift lever normally.
When shifting the shift lever
between P and D, make sure that
the vehicle is completely stopped
and the brake pe dal is depressed.
*: For the vehicle be able to be
shifted from P, the brake pedal
must be depressed before the
shift release button is pushed. If
the shift release button is pushed
first, the shift lock will not be
released.
WA R N I N G
■When driving on slippery
road surfaces
Do not accelerate o r shift the shift
gears suddenly.
Sudden changes in engine brak-
ing may cause the vehicle to spin
or skid, resulting in an accident.
Shifting the shift lever

1714-2. Driving procedures
4
Driving
COROLLA_U
■Shift lock system
The shift lock system is a system to
prevent accidental operation of the
shift lever in starting.
The shift lever can be shifted from P
only when the engine switch is in
ON and the brake pedal is being
depressed.
■If the shift lever cannot be
shifted from P
First, check whether the brake pedal
is being depressed.
If the shift lever cannot be shifted
with your foot on the brake pedal,
there may be a pr oblem with the
shift lock system. Have the vehicle
inspected by your Toyota dealer
immediately.
The following steps may be used as
an emergency measure to ensure
that the shift lev er can be shifted.
Releasing the shift lock:
1 Set the parking brake.
2 Turn the engine switch off.
3 Depress the brake pedal.
4 Ply the cover up with a flathead
screwdriver or equivalent tool.
To prevent damaging the cover,
wrap the tip of the flathead
screwdriver with a tape.
5 Press and hold the shift lock
override button and then push
the shift release button on the
shift knob.
The shift lever can be shifted while the button is pressed.

P.271
WA R N I N G
■To prevent an accident when
releasing the shift lock
Before pressing the shift lock
override button, m ake sure to set
the parking brake and depress the
brake pedal.
If the accelerator pedal is acci-
dentally depressed instead of the
brake pedal when the shift lock
override button is pressed and the
shift lever is shifted out of P, the
vehicle may suddenly start, possi-
bly leading to an accident result-
ing in death or serious injury.
Selecting the driving
mode

1724-2. Driving procedures
COROLLA_U
*: If equipped
*: To improve fuel efficiency and reduce noise, shift the shift lever
to D for normal driving.
■To protect the continuously
variable transmission
If the continuously variable trans-
mission fluid temperature is high,
“Transmission Oil Temp. High Stop
in a Safe Place and See Owner’s
Manual” will be d isplayed on the
multi-information display and the
vehicle will go into transmission pro-
tection mode automatically. Have the vehicle inspected by your Toyota
dealer.
■When driving with dynamic
radar cruise control with
full-speed range activated
Even when switching the driving
mode to sport mode with the intent
of enabling engine braking, engine
braking will not occur because
dynamic radar cruise control with
full-speed range will not be can-
celed. ( P.271)
■Restraining sudden start
(Drive-Start Control)
 P.152
■G AI-SHIFT
G AI-SHIFT automat ically selects a
suitable gear for sporty driving
according to drive r’s input and driv-
ing conditions. G AI-SHIFT operates
automatically when th e shift lever is
in D and sport mode is selected for
the driving mode. (Selecting normal
mode or shifting the shift lever to the
M position cancels this function.)
■After recharging/reconnecting
the battery
 P.549
Continuously variable
transmission (vehi-
cles with paddle shift
switches)
*
Select the shift position
depending on your purpose
and situation.
Shift position purpose
and functions
Shift posi-
tionObjective or function
PParking the vehi-
cle/starting the engine
RReversing
N
Neutral
(Condition in which the power is not transmit- ted)
DNormal driving*
M
10-speed sport sequen-tial shiftmatic mode driving ( P.175)WA R N I N G
■When driving on slippery
road surfaces
Do not accelerate or shift the shift
gears suddenly.
Sudden changes in engine brak-
ing may cause the vehicle to spin
or skid, resulting in an accident.

1734-2. Driving procedures
4
Driving
COROLLA_U
:While the engine switch is in
ON and the brake pedal
depressed
*, shift the shift lever
while pushing the shift release
button on the shift knob.
:Shift the shift lever while
pushing the shift release button
on the shift knob.
:Shift the shift lever normally.
When shifting the shift lever
between P and D, make sure that
the vehicle is completely stopped
and the brake pedal is depressed.
*: For the vehicle be able to be
shifted from P, the brake pedal
must be depresse d before the
shift release button is pushed. If
the shift release button is pushed
first, the shift lock will not be
released.
■Shift lock system
The shift lock syste m is a system to
prevent accidental operation of the
shift lever in starting.
The shift lever can be shifted from P
only when the engi ne switch is in
ON and the brake pedal is being
depressed.
■If the shift lever cannot be
shifted from P
First, check whether the brake pedal
is being depressed.
If the shift lever cannot be shifted
with your foot on the brake pedal,
there may be a p roblem with the
shift lock system. Have the vehicle
inspected by your Toyota dealer
immediately.
The following steps may be used as
an emergency measure to ensure
that the shift lev er can be shifted.
Releasing the shift lock:
1 Set the parking brake.
2 Turn the engine switch off.
3 Depress the brake pedal.
4 Ply the cover up with a flathead
screwdriver or equivalent tool.
To prevent damaging the cover,
wrap the tip of the flathead
screwdriver with a tape.
5 Press and hold the shift lock
override button and then push
the shift release button on the
shift knob.
The shift lever can be shifted while
Shifting the shift lever

1744-2. Driving procedures
COROLLA_Uthe button is pressed.

P. 2 7 1
To drive using temporary shift
range selection, operate the “-”
or “+” paddle shift switch.
When the “-” paddle shift switch
is operated, the shift range
switches to a range that enables
engine braking force that is suit-
able to driving conditions. When
the “+” paddle shift switch is
operated, the shift range
switches to a range that is one range higher than the current
range.
Changing the shift range allows
restriction of the highest gear,
preventing unnecessary upshift-
ing and enabling the level of
engine braking force to be
selected.
1
Upshifting
2 Downshifting
The selected shift range, from D1 to
D10, will be displayed on the
multi-information display.
■Gear step functions
●You can choose from 10 levels of
engine braking force.
●A lower gear step will provide
greater engine braking force than
a higher gear step, and the engine
speed will also increase.
■Deactivation of temporary
10-speed Sport Sequential
Shiftmatic mode
In the following situations, tempo-
rary 10-speed Sport Sequential
Shiftmatic mode will be deactivated:
●When the vehicle is stopped
●If the accelerator pedal is
depressed continuously for more
than a certain a mount of time
while in one gear range
●If the accelerator pedal is
depressed abruptly and heavily
WA R N I N G
■To prevent an accident when
releasing the shift lock
Before pressing the shift lock
override button, make sure to set
the parking brake and depress the
brake pedal.
If the accelerator pedal is acci-
dentally depressed instead of the
brake pedal when the shift lock
override button is pressed and the
shift lever is shifted out of P, the
vehicle may suddenly start, possi-
bly leading to an accident result-
ing in death or serious injury.
Selecting the driving
mode
Selecting shift ranges in
the D position

1754-2. Driving procedures
4
Driving
COROLLA_U
●When the shift lever is shifted to a
position other than D
●When the “+” paddle shift switch is
operated for a certain amount of
time continuously
To enter 10-speed sport
sequential shiftmatic mode, shift
the shift lever to M position.
Gear steps can then be selected
by operating the shift lever or
paddle shift switches, allowing
you to drive in the gear step of
your choosing.
1Upshifting
2 Downshifting
The gear changes once every time
the shift lever or paddle shift switch
is operated.
The selected gear step, from M1 to
M10, will be displayed on the
multi-information display.
However, even when in the M
position, the gear steps will be
automatically changed if the engine speed is too high, or too
low.
■Gear step functions
●You can choose from 10 levels of
engine braking force.
●A lower gear step will provide
greater engine braking force than
a higher gear step, and the engine
speed will also increase.
■When the vehicle comes to a
stop with the shift lever in the M
position
●The transmission will automati-
cally downshift to M1 once the
vehicle is stopped.
●After a stop, the vehicle will start
off in M1.
●When the vehicle
is stopped, the
transmission is set at M1.
■Downshifting restriction warn-
ing buzzer
To help ensure sa fety and driving
performance, dow nshifting opera-
tion may sometimes be restricted. In
some circumstances, downshifting
may not be possible even when the
shift lever or paddle shift switch is
operated. (A buzzer will sound
twice.)
■If the 10-speed sport sequential
shiftmatic mode indicator does
not come on even after shifting
the shift lever to M
This may indicate a malfunction in
the continuously variable transmis-
sion system. Have the vehicle
inspected by your Toyota dealer
immediately.
(In this situation , the transmission
will operate in the same manner as
when the shift lever is in D.)
■Continuously variable transmis-
sion fail-safe control
The system detects malfunctioning
parts targeted (all of the solenoids
that perform the shifting function) by
the On-Board Diagnostics, and per-
Changing gears in the M
position

1774-2. Driving procedures
4
Driving
COROLLA_U
■Maximum allowable speeds
Observe the following maximum
allowable speeds in each gear when
maximum acceleration is necessary.
1.8 L 4-cylinder (2ZR-FAE) engine
2.0 L 4-cylinder (M20A-FKS)
engine
Shift posi- tionMaximum speedmph (km/h)
130 (48)
257 (91)
383 (133)
Shift posi- tionMaximum speedmph (km/h)
135 (56)
261 (98)
391 (146)
NOTICE
■To prevent damage to the
vehicle
When shifting gears, observe the
following precauti ons. Failure to
do so may cause damage to the
engine, manual transmission,
and/or clutch.
●Do not shift the sh ift lever to R
without depressing the clutch
pedal.
●Do not lift up the ring section
except when shifting the lever to
R.
●Shift the shift lever to R only
when the vehicle is stationary.
●Do not rest your hand on or hold
the shift lever any time other
than when shifting.
●In order to not cause the engine
to overrev, make sure to only
shift gears sequentially.
●Do not release the clutch pedal
suddenly.

1784-2. Driving procedures
COROLLA_U
The iMT optimally controls the
engine speed to suit the driver’s
operation of the clutch pedal
and shift lever, helping the driver
to shift gears more smoothly.
Additionally, when the clutch
pedal is operated, the iMT helps
reduce shift shock, allowing for
lighter shift operations when
driving on a winding road or
incline.
Press the “iMT” switch.
The iMT indicator will illuminate in
green.
Press the switch again to cancel
iMT.
■The iMT may not operate when
In the following situations, iMT may
not operate. However, this does not
indicate a malfunction.
●The clutch ped al is not fully
depressed
●The clutch ped al is not fully
released, such as if a foot is rest-
ing on the clutch pedal
*
●Shift operation is performed after
the vehicle has been coasting with
the shift lever in N
●The shift lever is not operated for
a long time after the clutch pedal
is depressed
*: After the shift lever is moved,
unless your foot i s completely
removed from the clutch pedal,
the iMT may not operate and the
engine speed may not be con-
trolled optimally for the next gear
change.
To enable the iMT, release the
clutch pedal completely and then
depress it again before operating
the shift lever.
■If the iMT indicator illuminates
in amber
The iMT may be temporarily
unavailable or malfunctioning. Have
the vehicle inspected at your Toyota
dealer.
iMT (Intelligent Manual
Transmission) (if
equipped)
WA R N I N G
■Limitations of the iMT
iMT is not a system that prevents
shift lever operation error or
engine overrevving.
Depending on the situation, iMT
may not operate normally and the
shift position may not be changed
smoothly. Overly relying on iMT
may cause an une xpected acci-
dent.