2015 LEXUS RC350 front seat

5358-2. Steps to take in an emergency
8
When trouble arises
RC350/RCF_U (OM24636U)
*1: Parking brake engaged warning buzzer (RC350): P. 5 4 3
*2: Open door warning buzzer:
 P. 5 4 1
*3: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfast ened after 24 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or
her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will
sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
Tire pressure warning light When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 5 3 6 )
•Flat tire ( P. 5 6 0 , 5 74 )
 Adjust the tire inflation pressure to the specified level.
The light will turn off after a fe w minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by your Lexus dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
 Have the system checked by your Lexus dealer.
Warning lightWarning light/Details/Actions

5368-2. Steps to take in an emergency
RC350/RCF_U (OM24636U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (door), side impact sensors (f ront), side impact sensors (rear), driver’s
seat position sensor, driver’s seat belt buck le switch, front passenger occupant classifica-
tion system, “AIR BAG ON” indicator light, “A IR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioners, ai rbags, interconnecting wiring and
power sources. ( P. 41)
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the wa rning buzzer to sound even if a passenger
is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficie nt of the voltage temporarily drops, the
electric power steering system warning light may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not tu rn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caused by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with the spare tire (if equipped)
The spare tire is not equipped with a tire pr essure warning valve and transmitter. If a tire
goes flat, the tire pressure warning light will no t turn off even though the flat tire has been
replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
 P. 4 9 6
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.

5438-2. Steps to take in an emergency
8
When trouble arises
RC350/RCF_U (OM24636U)
RC350
RC F
Indicates that the vehicle is being driven at 3 mph (5 km/
h) or more with the parking brake still engaged.
A buzzer also sounds.
 Release the parking brake.
Indicates that the shift lever was used to attempt to shift
to the first gear position in M mode on a slippery road
surface
The gear position will not sh ift from the second gear.
A buzzer also sounds.
 Drive the vehicle in the second or a higher gear
position.
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Indicates a malfunction in:
• The ABS; or
• The brake assist system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Wa r n i n g m e s s a g eDetails/Actions
(U.S.A.) (Canada) (Flashes)
(U.S.A.) (Canada) (Flashes)
(U.S.A.) (Canada)

6349-1. Specifications
RC350/RCF_U (OM24636U)
*:Table 1  Occupant loading and distribution fo r vehicle normal load for various des-
ignated seating capacities
Tr e a dThat portion of a tire that comes into contact with the
road
Tr e a d r i bA tread section running circumferentially around a tire
Tread separationPulling away of the tread from the tire carcass
Treadwear indicators (TWI)
The projections within the principal grooves designed
to give a visual indication of the degrees of wear of the
tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire assembly
securely during testing
Tire related termMeaning
Designated seating capac- ity, Number of occupantsVehicle normal load, Num- ber of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 1552 in front, 1 in second seat, 1 in third seat, 1 in fourth seat
16 through 207
2 in front, 2 in second seat,
2 in third seat, 1 in fourth seat

662What to do if... (Troubleshooting)
RC350/RCF_U (OM24636U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 5 3 4 )
●The parking brake indicator is on
Is the parking brake released? ( P. 2 0 5 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 533, 539)

●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 7 8 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 5 3 9 )
●When a warning light turns on or a warning message is displayed, refer to
P. 533, 539. A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

666Alphabetical index
RC350/RCF_U (OM24636U)
Back-up lightsReplacing light bulbs ......................... 518
Wattage ................................................... 619
Battery....................................................... 487 Battery checking ................................487
If the vehicle battery is discharged.................................... 593
Preparing and checking before winter ..................................................... 315
Warning light ...................................... 533
Blind Spot Monitor (BSM)................ 297
Bluetooth
®
Audio system .......................................376
Hands-free system (for cellular phone) ........................378
Brake Fluid.......................................................... 486
Parking brake...................................... 205
Warning light ...................................... 533
Brake assist ............................................. 282
Break-in tips............................................... 181
Brightness control Instrument panel light control ............................................ 94, 101
BSM (Blind Spot Monitor)................ 297 Card key ....................................................130
Care................................................458, 463
Aluminum wheels .............................. 459
Exterior ...................................................458
Interior ..................................................... 463
Seat belts................................................ 464
Cargo capacity .......................................190
Cargo hooks ...........................................434
CD player................................................ 352
Chains ......................................................... 316
Child restraint system ............................ 57 Child seats definition .......................... 57
Child seats installation............... 64, 70
Front passenger occupant classification system......................... 50
Installing a CRS to the passenger seat ............................. 61
Installing a CRS to the rear seat ........................................................... 63
Installing CRS with LATCH anchors ....................... 71
Installing CRS with seat belts ......... 64
Installing CRS with top tether strap..........................73
BC

668Alphabetical index
RC350/RCF_U (OM24636U)
Daytime running light system .......... 209
DefoggerOutside rear view mirrors .............420
Rear window ........................................420
Windshield ............................................420
Differential Front differential ..................................... 611
Rear differential .................................... 612
Dimension ............................................... 604
Dinghy towing..........................................192
Display Drive information ....................... 106, 112
Dynamic radar cruise control...... 233
LDA (Lane Departure Alert) .......249
Multi-information display ....... 103, 110
Warning message ............................ 539
Distance .......................................... 106, 107
Do-it-yourself maintenance ............. 473
Door courtesy lights Location ..................................................428
Wattage ................................................... 619
Door lock Doors ........................................................ 135
Smart access system with push-button start ............................. 146
Wireless remote control ................. 130 Doors .......................................................... 135
Automatic door locking and unlocking system ................... 138
Door lock................................................. 137
Open door warning buzzer ..........136
Open door warning light .............. 534
Outside rear view mirrors ............. 168
Side windows ..........................................171
Drive info 1/Drive info 2 ............. 107, 119
Drive information .......................... 106, 112 Resetting ......................................... 106, 112
Driver’s seat position memory.......... 157
Driving ....................................................... 180 Break-in tips ............................................ 181
Correct driving posture .....................32
Driving mode select switch .......... 278
Procedures ............................................ 180
Winter drive tips ..................................315
DRS (Dynamic Rear Steering) ....... 282 Warning message.............................539
Dynamic radar cruise control ......... 233
Dynamic Rear Steering (DRS) ....... 282 Warning message.............................539
D

670Alphabetical index
RC350/RCF_U (OM24636U)
Engine ....................................................... 606ACCESSORY mode....................... 194
Compartment...................................... 479
Engine switch ........................................ 193
Hood ........................................................475
How to start the engine ................... 193
Identification number ...................... 606
If the engine will not start............... 587
Ignition switch (engine switch)..... 193
Overheating .........................................597
Engine coolant....................................... 484 Capacity .................................................. 610
Checking............................................... 484
Preparing and checking before winter ..................................... 315
Engine coolant temperature gauge ................................................90, 96
Engine immobilizer system ..................76
Engine oil .................................................. 481 Capacity ................................................ 607
Checking................................................. 481
Preparing and checking before winter ..................................... 315
Engine oil temperature gauge ........... 96
Engine switch ...........................................193
Enhanced VSC ..................................... 282
EPS (Electric Power Steering) ....... 283 Warning light .......................................534
Event data recorder (EDR) ...................10
Expert mode ........................................... 286 First-aid kit storage belt......................434
Flat tire
Vehicles with a spare tire ............. 560
Vehicles with emergency tire puncture repair kit ......................... 574
Floor mats................................................... 30
Fluid Automatic transmission ..................... 611
Brake..........................................................613
Washer ...................................................490
Fog lights.................................................... 216 Replacing light bulbs .........................519
Switch ........................................................ 216
Footwell light .......................................... 428 Wattage ...................................................619
Front fog lights......................................... 216 Replacing light bulbs .........................519
Switch ........................................................ 216
Front passenger occupant classification system ........................... 50
Front seats ................................................. 152 Adjustment.............................................. 152
Cleaning................................................. 463
Correct driving posture .....................32
Driving position memory................. 157
Head restraints ...................................... 161
Jam protection function....................153
Seat heaters .......................................... 426
Seat position memory ....................... 157
Seat ventilators.....................................427F