2019 LEXUS RCF Owners Manual

2174-2. Driving procedures
4
Driving
RC F_U The Gear Shift Indicator display is a gu ide to help the driver achieve improved
fuel economy and reduced exhaust emissions within limits of engine perfor-
mance.
When not in operation
Shift-up indicator
■
Gear Shift Indicator function ●
This function automatically operates during M mode. ●
By following the Shift-up indicator and sh ifting up accordingly, it is possible
to achieve improved fuel economy and reduced exhaust emissions. ●
The Gear Shift Indicator does not have a similar function for downshifting. ●
Depending on the driving conditions, the Gear Shift Indicator may not dis-
play the Shift-up indicator while driving in M mode.Gear Shift Indicator (RC F) 1
2

218 4-2. Driving procedures
RC F_U ■
Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:●
When the vehicle comes to a stop ●
If the accelerator pedal is depressed fo r more than a certain period of time●
When the shift lever is shifted to a position other than D ■
To protect the automatic transmission
If the automatic transmission fluid temperat ure is high, “Transmission Fluid Temp High
See Owner’s Manual” will be displayed on the multi-information display and the vehicle
will go into transmission protection mode automatically. Have th e vehicle inspected by
your Lexus dealer. ■
Downshifting restriction warning buzzer
To help ensure safety and driving performance, downshifti ng operation may sometimes
be restricted. In some circum stances, downshifting may not be possible even when the
shift lever or paddle shif t switch is operated. (A buzzer will sound twice.)■
Snow mode automatic deactivation
Snow mode is automatically deactivated if the engine switch is turn ed off after driving in
snow mode. ■
When driving with dynamic radar cruise control activated
Even when performing the following actions with the intent of enabling engine braking,
engine braking will not activate because dy namic radar cruise control will not be can-
celed. ●
8-speed models: While driving in the D posi tion, downshifting to 7, 6, 5 or 4.
(  P. 268) ●
6-speed models: While driving in the D position, downshifting to 5 or 4.
(  P. 268) ●
When switching the driving mode to sport mode while driving in D position.
(  P. 301)■
Shift lock system
The shift lock system is a system to prevent ac cidental operation of the shift lever in start-
ing.
The shift lever can be shifted from P only when the engine switch is in IGNITION ON
mode and the brake pedal is being depressed. ■
Restraining sudden start (Drive-Start Control)●
When the following unusual operation is performed, the engine output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes M) with the accelerator pedal depressed, a warning message appears on
the multi-information display. (  P. 465)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.

2194-2. Driving procedures
4
Driving
RC F_U ■
If the shift lever cannot be shifted from P
First, check whether the brak e pedal is being depressed.
If the shift lever cannot be shifted with your foot on the brake pedal, there may be a prob-
lem with the shift lock system. Have the vehi cle inspected by your Lexus dealer immedi-
ately.
The following steps may be used as an emergency measure to ensure that the shift lever
can be shifted.
Releasing the shift lock:
Set the parking brake.
Turn the engine switch to off.
Depress the brake pedal.
■
AI-SHIFT ●
The AI-SHIFT automatically selects the suitab le gear according to driver performance
and driving conditions.
The AI-SHIFT automatically operates when the sh ift lever is in D. (S hifting the shift lever
to the M position cancels the function.) ●
8-speed models: G AI-SHIFT automatically selects a suitable gear for sporty driving
according to driver’s input and driving co nditions. G AI-SHIFT operates automatically
when the shift lever is in D and sport mode is selected for the driving mode. (Selecting
normal mode with the driving mode select switch or shifti ng the shift lever to the M
position cancels this function.) 1
2
3
Pry the cover up with a flathead screwdriver
or equivalent tool.
To prevent damage to the cover, cover the tip
of the screwdriver with a rag.
Press the shift lock override button.
The shift lever can be shifted while the button
is pressed. 4
5

220 4-2. Driving procedures
RC F_U WARNING ■
When driving on slippery road surfaces
Be careful of downshifting an d sudden acceleration, as this could result in the vehicle
skidding to the side or spinning. ■
To prevent an accident wh en releasing the shift lock
Before pressing the shift lock override butto n, make sure to set the parking brake and
depress the brake pedal.
If the accelerator pedal is accidentally 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, possibly leading to an a ccident resulting in death or serious injury.

2214-2. Driving procedures
4
Driving
RC F_U The lever will return to its original position immediately after operation.
Right turn
Lane change to the right (move the
lever partway and release it) The right hand signals will flash 3 times.
Lane change to the left (move the
lever partway and release it) The left hand signals will flash 3 times.
Left turn
■
If the turn signals do not stop flashing af ter turning left or right, or if you want
to stop them flashing
Operate the lever in the opposite direct ion to either position or . If you
move the lever to either position or , the selected turn signals will flash. ■
Turn signals can be operated when
The engine switch is in IGNITION ON mode. ■
If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.■
If the turn signals stop flashing befo re a lane change has been performed
Operate the lever again. ■
Customization
The number of times the turn signals flas h during a lane change can be changed.
(Customizable feature  P. 569)Turn signal lever Operating instructions 1
2
3
4
2 3
1 4

222 4-2. Driving procedures
RC F_U To set the parking brake, fully depress
the parking brake pedal with your left
foot while depressing the brake pedal
with your right foot.
(Depressing the pedal again releases
the parking brake.) ■
Parking the vehicle
 P. 192 ■
Parking brake engaged warning buzzer
 P. 454, 464 ■
Usage in winter time
 P. 321Parking brake Operating instructions
NOTICE ■
Before driving
Fully release the parking brake.
Driving the vehicle with the parking brake se t will lead to brake components overheat-
ing, which may affect braking performance and increase brake wear.

2234-2. Driving procedures
4
Driving
RC F_U Louder
Lower The indicator comes on when the ASC
system is on.
When the dial is turned to the lowest
volume, the ASC system will be turned
off and the indicator will go off. ■
The ASC system can be operated when
The driving mode select switch is in normal mode or sport mode. (  P. 301)■
Temporary cancelation of the ASC system functions
The ASC system may be temporarily cancel ed depending on the driving conditions,
such as when the tires slip due to sudden acceleration.ASC (Active Sound Control) 
(RC350/RC300)
 : If equippedThe ASC system is an electronic sound system that generates engine sound,
conveying the kinetic situations of the vehicle’s acceleration and deceleration
to the driver through the speake rs inside the instrument panel.
The vehicle’s response to the driver’s acceleration behavior and shift opera-
tions are also conveyed in sound.
When sport mode is selected, the sound conveyed to the driver will be louder.
Controlling volume 1
2

224 4-2. Driving procedures
RC F_U ■
The ASC system can be operated when
The driving mode select switch is in SPORT S+ mode. (  P. 301)
ASC (Active Sound Control) 
(RC F)
 : If equippedThe ASC system sonically emphasizes the vehicle’s response to the driver’s
operation of the accelerator pedal and sh ift lever or paddle shift switches. The
dynamic engine sound enabled by this system helps the driver further enjoy
the feeling of unity with the vehicle, particularly when driving in M mode.
(  P. 216)