coolant level LEXUS RC300 2021 User Guide

2957-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light
■Brake system warning light
■High coolant temperature warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, bu t then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer. Continuing to drive the vehicle may be dangerous.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in the parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method ( P.322)

3237-2. Steps to take in an emergency
7
When trouble arises
Radiator
Cooling fans
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
RC300
Radiator
Cooling fans
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4 The coolant level is satisfactory if it
is between the full (“FULL” or “F”)
and low (“LOW” or “L”) lines on the
reservoir.
 Engine (RC350/RC300 AWD) Reservoir cap
“FULL” or “F”
“LOW” or “L”
 Engine (RC300)
Reservoir cap
“FULL” or “F”
“LOW” or “L”
 Intercooler (RC300)
Reservoir cap
“FULL” or “F”
“LOW” or “L”
A
B
A
B
A
B
C
A
B
C
A
B
C

3458-1. Specifications
8
Vehicle specifications
cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure. Grade C corresponds to
a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pressureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil
and coolant, and if so equipped, air conditioning
and additional weight optional engine

395Alphabetical Index
Snow mode ....................................................133
Trip meters ........................................................ 70
Trunk ...................................................................... 91 Smart access system with push-button start ................................................................... 92
Trunk features.............................................. 229
Trunk grip ......................................................... 93
Trunk light......................................................... 93
Trunk opener main switch ....................... 94
Trunk opener switch ................................... 92
Wireless remote control........................... 93
Trunk light .......................................................... 93
Turn signal lights Replacing light bulbs................................ 282
Turn signal lever ...........................................136
Wattage..........................................................338
V
Vanity lights......................................................231
Vanity mirrors .................................................231
Variable Gear Ratio Steering (VGRS)201
VDIM (Vehicle Dynami cs Integrated Man-
agement)...................................................... 202
Vehicle data recording .... ............................... 5
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 202
Vehicle identification number ................ 328
Vehicle Stability Control (VSC) .............201
Vehicle sway warning display ....................75
Ventilators (seat ventilators)................... 223
VGRS (Variable Gear Ratio Steering)201
VSC (Vehicle Stabilit y Control) .............201
W
Warning buzzer
Open door warning................................. 299
Warning buzzers Approach warning....................................... 181
Brake hold...................................................... 301
Brake Override System ......................... 297
Downshifting ....................................... 134, 135 Drive-Start Control................................... 297
Electric power steering........................... 297
High coolant temperature.....................295
LDA (Lane Departure Alert with steering
control) ......................................................... 169
LDA (Lane Departure Alert) .............. 298
Low engine oil pressure.........................296
Open door ............................................. 89, 90
Open window ................................................ 113
Pre-collision braking ................................. 163
Seat belt ..........................................................299
Warning lights............................................... 295 ABS ................................................................... 297
Brake hold operated indicator ............ 301
Brake Override System ......................... 297
Brake system................................................295
Charging system........................................296
Drive-Start Control................................... 297
Electric power steering........................... 297
High coolant temperature.....................295
LDA indicator ............................................. 298
Low engine oil pressure.........................296
Low fuel level ...............................................299
Malfunction indicator lamp ...................296
Master warning light................................ 300
Open door warning .................................299
Parking brake indicator ......................... 300
Pre-collision system................................. 298
Seat belt reminder light...........................299
Slip indicator ................................................ 298
SRS ....................................................................296
Tire pressure ............................................... 300
Warning message display............................76
Warning messages ..................................... 303
Washer Checking ....................................................... 264
Preparing and checking before winter......................................................................... 205
Switch.................................................................147
Washing and waxing.................................. 242
Weight Cargo capacity ............................................ 125