warning light LEXUS RC300 2018 Owners Manual

RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Pictorial index Search by illustration
1
For safety
and security Make sure to read through them
2
Instrument cluster How to read the gauges and meters, the variety of
warning lights and indicators, etc.
3
Operation of each
component Opening and closing the doors and windows,
adjustment before driving, etc.
4
Driving Operations and advice which are necessary for driving
5
Interior features Usage of the interior features, etc.
6
Maintenance
and care Caring for your vehicle and maintenance procedures
7
When trouble
arises What to do in case of malfunction or emergency
8
Vehicle
specifications Vehicle specifications, customizable features, etc.
9
For owners Reporting safety defects for U.S. owners, and seat belt
and SRS airbag instructio ns for Canadian owners
10
Index Search by symptom
Search alphabetically

TABLE OF CONTENTS
2
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)For your information................................... 8
Reading this manual................................... 12
How to search ..............................................13
Pictorial index............................................... 14
1-1. For safe use
Before driving ................................ 30
For safe driving .............................. 32
Seat belts .......................................... 34
SRS airbags ..................................... 40
Front passenger occupant
classification system ...................51
Safety information for
children .......................................... 57
Child restraint systems ............... 58
Exhaust gas precautions............ 78
1-2. Theft deterrent system
Engine immobilizer system....... 79
Alarm .................................................80
Theft prevention labels ............... 82 2. Instrument cluster
Warning lights and
indicators....................................... 84
Gauges and meters
(RC350/RC300) .....................91
Gauges and meters (RC F)...... 96
Multi-information display
(RC350/RC300) ................. 103
Multi-information display
(RC F) ............................................. 118
Fuel consumption
information ..................................1351
For safety and security 2
Instrument cluster

TABLE OF CONTENTS
6
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)7-1. Essential information
Emergency flashers .................. 442
If your vehicle has
to be stopped in
an emergency .......................... 443
7-2. Steps to take in
an emergency
If your vehicle needs
to be towed ............................... 444
If you think something is
wrong.............................................451
Fuel pump shut off system ...... 452
If a warning light turns on
or a warning buzzer
sounds ......................................... 453
If a warning message is
displayed .................................... 460
If you have a flat tire
(vehicles with a
spare tire) ................................... 489
If you have a flat tire
(vehicles with
an emergency
tire puncture repair kit) ........ 502
If the engine will not start ..........516
If the electronic key does
not operate pr operly .............. 518
If the vehicle battery is
discharged ................................. 522
If your vehicle overheats......... 526
If the vehicle becomes
stuck ............................................. 532 8-1. Specifications
Maintenance data
(fuel, oil level, etc.) .................. 536
Fuel information ......................... 554
Tire information .......................... 557
8-2. Customization
Customizable features ............ 569
8-3. Items to initialize
Items to initialize......................... 578
8-4. Certifications
Certifications ............................... 579
Reporting safety defects for
U.S. owners ...............................600
Seat belt instructions for
Canadian owners
(in French) .................................. 601
SRS airbag instructions for
Canadian owners
(in French) ................................. 6037
When trouble arises 8
Vehicle specifications
9
For owners

15Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145Locking/unlocking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145
Opening/closing the side window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182
Locking/unlocking by using the me chanical key . . . . . . . . . . . . . . . . . . . . . . . . P. 518
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 454, 462
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 320
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . . . . P. 339
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 378
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 241
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 540
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 548
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 32 0
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . P. 412
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 489, 502
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 393Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 393
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 540
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 526
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 463
Headlights/turn signal lights/side marker lights . . . . . . . . . . . . . P. 221, 225
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
Front fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232 1
2
3
4
5
Light bulbs of the exte rior lights for driving
(Replacing method: P. 432, Watts: P. 553)
* : If equipped6
7
8

17Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151Opening from inside the cabin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
Opening from outside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 15 1
Opening by using the mechanical key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 519
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 454, 463
Outside rear view mirrors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178 Adjusting the mirror angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Folding the mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 179
Driving position memory
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 166
Defogging the mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Active rear wing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 30 7
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 221
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
Stop lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 192
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
Back up lights Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213 1
2
3
Light bulbs of the exte rior lights for driving
(Replacing method: P. 432, Watts: P. 553)
* : If equipped4
5
6
7

18 Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■ Instrument panel
Engine switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 207Starting the engine/changing the mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Emergency stop of the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 443
When the engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 516
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 483
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213Changing the shift position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Precautions against towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 444
When the shift lever does not move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 91, 96Reading the meters/adjusting the instrument panel lights . . . . . . . . . . . . P. 91, 96
Warning lights/indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 84
When the warning lights come on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 453 1
2
3

19Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 103, 118 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 103, 118
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 460
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 2 22Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 2 22
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 321
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 460
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 221Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Headlights/parking lights/tail lights/daytime runnin g lights . . . . . . . . . . . . P. 225
Front fog lights
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233 Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 478
Headlight cleaners
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 442
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 151
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 393
Tilt and telescopic steering control switch
* 1
. . . . . . . . . . . . . . . . . . . . . . . P. 174Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 174
Driving position memory
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 166
Tilt and telescopic steering lock release lever
* 1
. . . . . . . . . . . . . . . . . . . P. 174Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 174
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 333 Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 333
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Audio system
* 2
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 152
* 1
: If equipped
* 2
: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”.4
5
6
7
8
9
10
11
12
13
14
15

38 1-1. For safe use
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING ■
People suffering illness
Obtain medical advice and wear the seat belt in the proper way. (  P. 34)■
When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes twisted around
a child’s neck, it may lead to choking or othe r serious injuries that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used to cut the
belt. ■
Seat belt pretensioners ●
Do not place anything, such as a cushion, on the front passenger’s seat. Doing so will
disperse the passenger’s weight, which prevents the sensor from detecting the pas-
senger’s weight properly. As a result, the seat belt pretensioner for the front passen-
ger’s seat may not activate in the event of a collision. ●
If the pretensioner has activated, the SRS wa rning light will come on. In that case, the
seat belt cannot be used again and must be replaced at your Lexus dealer. ■
Seat belt damage and wear ●
Do not damage the seat belts by allowing th e belt, plate, or buckle to be jammed in
the door. ●
Inspect the seat belt system periodically. Check for cuts, fraying, and loose parts. Do
not use a damaged seat belt until it is replaced. Damaged seat belts cannot protect an
occupant from death or serious injury. ●
Ensure that the belt and plate are locked and the belt is not twisted.
If the seat belt does not function correct ly, immediately contact your Lexus dealer.●
Replace the seat assembly, incl uding the belts, if your vehi cle has been involved in a
serious accident, even if there is no obvious damage. ●
Do not attempt to install, remove, modify, disassemble or dispose of the seat belts.
Have any necessary repairs carried out by your Lexus dealer. Inappropriate handling
may lead to inco rrect operation.■
When using the seat belt guide ●
Always make sure that the belt is not tw isted, and runs freely through the guide.●
Regardless of whether the guide is used or not, always secure the seat belt guide but-
ton. ●
Do not hang from or pull the guide forcefully.

411-1. For safe use
1
For safety and security
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Your vehicle is equipped with ADVA NCED AIRBAGS designed based on the
US motor vehicle safety standards (F MVSS208). The airbag sensor assembly
(ECU) controls airbag deployment based on information obtained from the sen-
sors etc. shown in the system compon ents diagram above. This information
includes crash severity and occupant information. As the airbags deploy, a
chemical reaction in the inflators quickly fills the airbags with non-toxic gas to
help restrain the motion of the occupants.SRS airbag system components
Front passenger occupant classifi-
cation system (ECU and sensors)
Side impact sensors (door)
Knee airbags
Front passenger airbag
Curtain shield airbags
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Seat belt pretensioners and force
limiters
Side impact sensors (front) Front side airbags
SRS warning light
Driver airbag
Side impact sensors (rear)
Driver’s seat position sensor
Driver’s seat belt buckle switch
Airbag sensor assembly
Front passenger’s seat belt buckle
switch
Front impact sensors1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
17

42 1-1. For safe use
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING ■
SRS airbag precautions
Observe the following precaution s regarding the SRS airbags.
Failure to do so may cause death or serious injury. ●
The driver and all passengers in the vehicle must wear their seat belts properly.
The SRS airbags are supplemental devices to be us ed with the seat belts.●
The SRS driver airbag deploys with considerable force, and can cause death or seri-
ous injury especially if the driver is very close to the airbag. The National Highway
Traffic Safety Administration (NHTSA) advises:
Since the risk zone for the driver’s airbag is the first 2 - 3 in. (50 - 75 mm) of inflation,
placing yourself 10 in. (250 mm) from your driver airbag provides you with a clear
margin of safety. This distance is measured from the center of the steering wheel to
your breastbone. If you sit less than 10 in . (250 mm) away now, you can change your
driving position in several ways:
• Move your seat to the rear as far as you can while still reaching the pedals com-
fortably.
• Slightly recline the back of the seat.
Although vehicle designs vary, many drivers can achieve the 10 in. (250 mm) dis-
tance, even with the driver seat all the wa y forward, simply by reclining the back of
the seat somewhat. If reclining the back of your seat makes it ha rd to see the road,
raise yourself by using a firm , non-slippery cushion, or ra ise the seat if your vehicle
has that feature.
• If your steering wheel is ad justable, tilt it do wnward. This points the airbag toward
your chest instead of your head and neck.
The seat should be adjusted as recommended by NHTSA ab ove, while still maintain-
ing control of the foot pedals, steering whee l, and your view of the instrument panel
controls.