2020 LEXUS RC300 charging

3107-2. Steps to take in an emergency
5Open and close any of the door of
your vehicle with the engine switch
off.
6
Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to IGNITION ON
mode.
7
Once the vehicle’s engine has
started, remove the jumper cables
in the exact reverse order from
which they were connected.
Once the engine starts, have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
■Starting the engine when the battery is
discharged
The engine cannot be started by push-start-
ing.
■To prevent battery discharge
●Turn off the headlights and the audio sys-
tem while the engine is off.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■Charging the battery
The electricity stored in the battery will dis-
charge gradually even when the vehicle is
not in use, due to natural discharge and the
draining effects of certain electrical appli-
ances. If the vehicle is left for a long time,
the battery may discharge, and the engine
may be unable to start. (The battery
recharges automatically during driving.)
■When recharging or replacing the bat-
tery
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
battery is discharged. Use the wireless
remote control or the mechanical key to
lock or unlock the doors.
●The engine may not start on the first
attempt after the battery has recharged
but will start normally after the second
attempt. This is not a malfunction.
●The engine switch mode is memorized by
the vehicle. When the battery is recon-
nected, the system will return to the
mode it was in before the battery was dis-
charged. Before disconnecting the bat-
tery, turn the engine switch off.
If you are unsure wh at mode the engine
switch was in before the battery dis-
charged, be especially careful when
reconnecting the battery.
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the bat-
tery:
●Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentiona lly in contact with
any other than the intended terminal.
●Do not allow the other end of the
jumper cable connected to the “+” ter-
minal to come into contact with any
other parts or metal surfaces in the
area, such as brackets or unpainted
metal.
●Do not allow the + and - clamps of the
jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette
lighters or allow open flame near the
battery.
■Battery precautions
The battery contains poisonous and cor-
rosive acidic electrol yte, while related
parts contain lead and lead compounds.
Observe the following precautions when
handling the battery:

3228-1. Specifications
■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
■Transmission fluid type
Using transmission fluid other than the above type may cause abnormal noise or vibra-
tion, or damage the transmission of your vehicle.

385Alphabetical Index
TransmissionAutomatic transmission ............................ 129
Driving mode select switch .................... 192
M mode ............................................................ 132
Paddle shift switches ......................... 131, 132
Snow mode ..................................................... 131
Trip meters ........................................................ 68
Trunk .................................................................... 89 Smart access system with push-button start ................................................................... 90
Trunk features................................................ 221
Trunk grip ........................................................... 91
Trunk light........................................................... 91
Trunk opener main switch ....................... 92
Trunk opener switch ................................... 90
Wireless remote control............................. 91
Trunk light ............................................................ 91
Turn signal lights Replacing light bulbs.................................272
Turn signal lever ...........................................134
Wattage.......................................................... 328
V
Vanity lights.................................................... 223
Vanity mirrors ............................................... 223
Variable Gear Ratio Steering (VGRS) 194
VDIM (Vehicle Dynami cs Integrated Man-
agement)........................................................195
Vehicle data recording .... ............................... 5
Vehicle Dynamics Integrated Manage- ment (VDIM)................................................195
Vehicle identification number ................. 318
Vehicle Stability Control (VSC) .............194
Vehicle sway warning display ....................73
Ventilators (seat ventilators)..................... 214
VGRS (Variable Gear Ratio Steering) 194
VSC (Vehicle Stabilit y Control) .............194
W
Warning buzzer
Open door warning.................................288 Warning buzzers
Approach warning......................................175
Brake Override System ........................ 286
Downshifting ....................................... 132, 133
Drive-Start Control.................................. 286
Electric power steering.......................... 286
High coolant temperature.....................284
LDA (Lane Departure Alert with steering control) ......................................................... 163
LDA (Lane Departure Alert) ............... 287
Low engine oil pressure........................ 285
Open door ............................................. 87, 88
Open window .................................................. 111
Parking brake ............................................. 286
Pre-collision braking ..................................157
Seat belt ......................................................... 288
Warning lights............................................... 284 ABS .................................................................. 285
Brake Override System ........................ 286
Brake system................................................284
Charging system........................................284
Drive-Start Control.................................. 286
Electric power steering.......................... 286
High coolant temperature.....................284
LDA indicator ..............................................287
Low engine oil pressure........................ 285
Low fuel level .............................................. 288
Malfunction indicator lamp .................. 285
Master warning light................................ 289
Open door warning ................................ 288
Parking brake indicator ......................... 286
Pre-collision system.................................. 287
Seat belt reminder light.......................... 288
Slip indicator ................................................. 287
SRS ................................................................... 285
Tire pressure ............................................... 289
Warning message display............................74
Warning messages ..................................... 292
Washer Checking .......................................................256
Preparing and checking before winter........................................................................... 198