2019 LEXUS RC300 automatic transmission

3TABLE OF CONTENTS
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
1
2
3
4
5
6
7
8
9
4-2. Driving procedures Engine (ignition) switch .............. 125
Automatic transmission.............. 128
Turn signal lever............................. 133
Parking brake ................................. 134
ASC (Active Sound Control) .. 134
4-3. Operating the lights and wipers Headlight switch ............................ 136
Automatic High Beam ................ 138
Windshield wipers and washer ............................................................. 141
4-4. Refueling Opening the fuel tank cap......... 148
4-5. Using the driving support systems Lexus Safety System + ................. 151
PCS (Pre-Collision System)..... 154
LDA (Lane Departure Alert with steering control) .......................... 161
Dynamic radar cruise control ............................................................ 168
Intuitive parking assist ................. 176
BSM (Blind Spot Monitor) ........ 182
Driving mode select switch....... 190
Driving assist systems .................. 192
4-6. Driving tips Winter driving tips ........................ 196
5-1. Remote Touch/Display Remote Touch ............................... 200
Center Display .............................. 202
5-2. Using the air conditioning system Automatic air conditioning system .205 Heated steering wheel/seat heat-
ers/seat ventilators..................... 212
5-3. Using the interior lights Interior lights list ............................. 215
5-4. Using the storage features List of storage features ................ 217
Trunk features ................................. 219
5-5. Using the other interior features Other interior features .............. 220
Garage door opener .................. 222
Compass .......................................... 227
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior.................................... 232
Cleaning and protecting the vehi- cle interior .................................... 235
6-2. Maintenance Maintenance re quirements .....238
General maintenance................ 239
Emission inspection and mainte- nance (I/M) programs ............. 242
6-3. Do-it-yourself maintenance Do-it-yourself service precautions.243
Hood ................................................. 245
Positioning a floor jack .............. 245
Engine compartment .................. 247
Tires ................................................... 255
Tire inflation pressure................... 261
Wheels ............................................. 263
Air conditioning

filter ................. 264
Electronic key battery ................ 265
5Interior features
6Maintenance and care

115
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
4
4
Driving
Driving
.4-1. Before drivingDriving the vehicle ...................... 116
Cargo and luggage .................... 121
Vehicle load limits ...................... 123
Trailer towing ............................... 124
Dinghy towing ............................. 124
4-2. Driving procedures Engine (ignition) switch ........... 125
Automatic transmission........... 128
Turn signal lever.......................... 133
Parking brake .............................. 134
ASC (Active Sound Control) ......................................................... 134
4-3. Operating the lights and wipers Headlight switch ......................... 136
Automatic High Beam ............. 138
Windshield wipers and washer .......................................................... 141
4-4. Refueling Opening the fuel tank cap...... 148
4-5. Using the driving support sys- tems
Lexus Safety System + .............. 151
PCS (Pre-Collision System) ......................................................... 154
LDA (Lane Departure Alert with steering control) ....................... 161
Dynamic radar cruise control ......................................................... 168
Intuitive parking assist .............. 176BSM (Blind Spot Monitor) .....
182
Driving mode select switch ... 190
Driving assist systems............... 192
4-6. Driving tips Winter driving tips ..................... 196

1284-2. Driving procedures
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
*1: To improve fuel efficiency and reduce noise, shift the shift lever to D for normal
driving.
*2: Any gear range can be fixed when driv-ing in M mode.
■To protect the automatic transmission
If the automatic transmission fluid tempera-
ture is high, “Transmission Fluid Temp High
See Owner's Manual” will be displayed on
the multi-information display and the vehi-
cle will go into transmission protection
mode automatically. Have the vehicle
inspected by your Lexus dealer.
■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 occur
because dynamic radar cruise control will
not be canceled.
●6-speed models: While driving in the D
NOTICE
■To prevent battery discharge
Do not stop the engine when the shift
lever is in a position other than P. If the
engine is stopped in another shift lever
position, the engine switch will not be
turned off but instead be turned to
ACCESSORY mode. If the vehicle is left
in ACCESSORY mode, battery dis-
charge may occur.
Automatic transmission
Select the shift position depending
on your purpose and situation.
Shift position purpose and func-
tions
Shift posi- tionObjective or function
PParking the vehicle/starting the engine
RReversing
N
Neutral
(Condition in which the
power is not transmitted)
DNormal driving*1
MM mode driving*2 (  P.131)

1324-2. Driving procedures
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
1Upshifting
2 Downshifting
The gear changes once every time the shift
lever or paddle shift switch is operated.
8-speed models: The selected gear, from
M1 to M8, will be fixed and displayed on
the meter.
6-speed models: The selected gear, from
M1 to M6, will be fixed and displayed on
the meter.
When in the M position, the gear will
not change unless the shift lever or
paddle shift switch es are operated.
However, even when in the M position,
the gears will be automatically
changed in the following situation:
 When vehicle speed drops (down-
shift only).
 When a gear change is necessary to
protect the engine or automatic
transmission when the engine cool-
ant temperature or automatic trans-
mission fluid temperature is low, or
other reasons.
In the following situations, the gear will
not shift even if the shift lever or paddle
shift switches are operated.
 “Slippery Road. Cannot Shift to
Lower Gear.” is displayed on the
multi-information display.
 The vehicle speed is low (upshift
only).
■Downshifting restriction warning
buzzer
To help ensure safety and driving perfor-
mance, downshifting operation may some-
times 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.)

1914-5. Using the driving support systems
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
4
Driving
Custom mode settings can only be
changed on the drive mode customization
display of the Center Display. ( P.202)
2 Eco drive mode
Helps the driver accelerate in an
eco-friendly manner and improve fuel
economy through moderate throttle char-
acteristics and by controlling the operation
of the air conditioning system (heat-
ing/cooling).
When not in Eco drive mode, if the driving
mode select switch is turned to the left, the
Eco drive mode indicator will come on.
3Sport mode
•SPORT S mode
Controls the transmission and engine to
provide quick, powerful acceleration. Also,
gear shift timing is co ntrolled to suit sporty
driving, making this mode is suitable for
when agile driving response is desired,
such as when driving on roads with many
curves.
When not in SPORT S mode, if the driving
mode select switch is turned to the right,
the “SPORT S” indicator will come on.
•SPORT S+ mode
Provides earlier down shift timing than
SPORT S mode in order to maintain a high
engine speed and provides faster gear
changes. This mode also changes the steering feel, susp
ension control and
VDIM control, making it suitable for pow-
erful sporty driving.
When in SPORT S mode, if the driving
mode select switch is turned to the right,
the “SPORT S+” indicator will come on.
■Operation of the air conditioning sys-
tem in Eco drive mode
Eco drive mode controls the heating/cool-
ing operations and fan speed of the air con-
ditioning system to enhance fuel efficiency
(  P.205). To improve air conditioning per-
formance, adjust the fan speed or turn off
Eco drive mode.
■Automatic deactivation of sport mode
and custom mode
If the engine switch is turned off after driv-
ing in sport mode or custom mode, the
drive mode will be changed to normal
mode.
■Driving mode pop-up display (vehicles
with a 10.3-inch display)
When the driving mode is changed, the
selected driving mode will be temporarily
displayed on the side display. ( P.202)
FunctionSetting
Powertrain
Normal
Power
Eco
ChassisNormal
Sport
Air conditioning sys-
temNormal
Eco

2837-2. Steps to take in an emergency
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
7
When trouble arises
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp
■SRS warning light
■ABS warning light
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
 The electronic engine control system;
 The electronic throttle control system; or
 The electronic automatic transmission control system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates a malfunction in:
The SRS airbag system;
 The front passenger occupant classification system; or
 The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The ABS; or
 The brake assist system
 Have the vehicle inspected by your Lexus dealer immediately.

3208-1. Specifications
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
■Spark plug
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Ignition system (spark plug)
RC350/RC300 AWDRC300
MakeDENSO FK20HBR8NGK DILFR7K9G
Gap0.031 in. (0.8 mm)0.035 in. (0.9 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system (battery)
Open voltage at 68°F (20°C):
12.3 V or higher
If the voltage is lower than the standard value,
charge the battery.
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A max.
Automatic transmission
Fluid capacity*
RC350
10.0 qt. (9.5 L, 8.4 Imp. qt.)
RC350 AWD/RC300 AWD
10.6 qt. (10.0 L, 8.8 Imp. qt.)
RC300
9.2 qt. (8.7 L, 7.7 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ca use deterioration in
shift quality, locking up of your transmission accompanied by vibration, and ultimately
damage the transmission of your vehicle.

3731-1. What to do if... (Troubleshooting)
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810373Alphabetical Index
Alphabetical Index
A
A/C Air conditioning filter ............................... 264
Automatic air conditioning system ...205
Micro dust and pollen filter...................209
ABS (Anti-lock Brake System)................192 Warning light ............................................... 283
Active Sound Control (ASC) ..................134
Adaptive Variable Suspension System 192
Air conditioning filter ................................. 264
Air conditioning system Air conditioning filter ............................... 264
Automatic air conditioning system ...205
Micro dust and pollen filter...................209
Airbags Airbag operating conditions................... 30
Airbag precautions for your child .........32
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................. 30
Curtain shield airbag precautions ........32
Front passenger occupant classification system ............................................................. 36
General airbag precautions ....................32
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions .............................32
Side and curtain shield airbags operating conditions...................................................... 30
Side and curtain shield airbags precau- tions ...................................................................32
SRS airbags ..................................................... 28
SRS warning light ...................................... 283
Alarm ................................................................... 58 Warning buzzer ......................................... 282
Anchor brackets ............................................... 41
Antennas (smart access system with push-button start)........................................ 93
Anti-lock Brake System (ABS)................192 Warning light ............................................... 283 Approach warning........................................ 173
ASC (Active Sound Control) ..................134
Assist grips ..................................................... 220
Audio system-linked display ...................... 75
Automatic air conditioning system ...... 205
Automatic headlight leveling system .... 137
Automatic High Beam ............................... 138
Automatic light control system................136
Automatic transmission ..............................128
M mode ............................................................. 131
Paddle shift switches ........................ 130, 131
Snow mode.................................................... 130
Average fuel economy..................................72
Average vehicle speed .................................72
B
Back-up light Replacing light bulbs ................................270
Wattage ..........................................................326
Battery Battery checking ........................................253
If the battery is discharged ................... 306
Preparing and checking before winter.....196
Warning light ...............................................282
Boost gauge.......................................................74
Brake Fluid.....................................................................321
Parking brake ................................................134
Warning light ...............................................282
Brake assist ......................................................192
Break-in tips...................................................... 117
Brightness control Instrument panel light control................... 71
C
Card key ............................................................ 82
CareAluminum wheels ...................................... 232
Exterior............................................................ 232
Interior .............................................................235