check engine light LEXUS RC350 2015 Owners Manual

TABLE OF CONTENTS6
RC350/RCF_U (OM24636U)
6-4. Using the other interior features
Other interior features ............ 435 • Sun visors ................................ 435
• Vanity mirrors ........................ 435
• Clock ........................................ 436
• Power outlet ........................... 436
• Armrest.....................................437
•Trunk storage extension ................................. 438
• Assist grips ............................. 439
• Coat hooks ............................. 439
Garage door opener ............... 440
Compass ........................................447
LEXUS Enform Safety Connect........................................ 451
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 458
Cleaning and protecting the vehicle inte rior.................. 463
7-2. Maintenance Maintenance requirements ............................ 466
General maintenance.............. 469
Emission inspection and maintenance (I/M)
programs ..................................... 472 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions.................................473
Hood ................................................475
Positioning a floor jack.............. 476
Engine compartment ................479
Tires....................................................491
Tire inflation pressure ...............500
Wheels ........................................... 503
Air conditio ning filter ...............505
Electronic key battery.............. 507
Checking and replacing fuses.............................................. 509
Light bulbs ......................................512
8-1. Essential information Emergency flashers .................. 522
If your vehicle has to be stopped in an
emergency ................................ 523
7Maintenance and care
8When trouble arises

15Pictorial index
RC350/RCF_U (OM24636U)
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 135
Locking/unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 135
Opening/closing the side window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 171
Locking/unlocking by using the mechanical key. . . . . . . . . . . . . . . . . . . . . . . . P. 590
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 534, 541
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 315
To prevent freezing (windshield wiper de-icer)* . . . . . . . . . . . . . . . . . . . . . . . . P. 421
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 460
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 225
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 607
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 491
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 614
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 315
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . . P. 491
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 560, 574
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 475
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 475
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 607
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 597
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 5 41
Headlights/parking lights/daytime running lights/
turn signal lights /side marker lights. . . . . . . . . . . . . . . . . . . . . . . . . . .P. 204, 208
Front fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 216
1
2
3
4
5
Light bulbs of the exterior lights for driving
(Replacing method: P. 512, Watts: P. 619)
*: If equipped
6
7

751-1. For safe use
1
For safety and security
RC350/RCF_U (OM24636U)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WA R N I N G
Exhaust gases include harmful carbon monoxi de (CO), which is colorless and odorless.
Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle ev en when the trunk lid is closed, open the
windows and have the vehicle inspected at your Lexus dealer as soon as possible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the
engine.
●Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and ensure
that exhaust fumes do not enter the vehicle interior.
●Do not leave the engine running in an area with snow build-up, or where it is snowing.
If snowbanks build up around the vehicle wh ile the engine is running, exhaust gases
may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack caused
by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle
inspected and repaired by your Lexus dealer.

852. Instrument cluster
2
Instrument cluster
RC350/RCF_U (OM24636U)
*1: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being perfor med. They will turn off after the engine is
on, or after a few seconds. There may be a malfunction in a system if a light does not
come on, or turn off. Have the vehi cle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
The indicators inform the driver of the operating state of the vehicle’s various sys-
tems.
Indicators
Turn signal indicator
( P. 2 0 4 )
(if equipped)
LDA (Lane Departure
Alert) indicator ( P. 2 4 8 )
(U.S.A.)
Headlight indicator
( P. 2 0 8 )

(if equipped)
Intuitive parking assist indi-
cator ( P. 2 5 5 )
(Canada)
Tail light indicator
( P. 2 0 8 ) *1, 2 Slip indicator ( P. 2 8 4 )
Headlight high beam indi-
cator ( P. 2 0 9 )
*1VSC OFF indicator
( P. 2 8 5 )
(if equipped)
Automatic High Beam indi-
cator ( P. 211)*1, 8TRAC OFF indicator
( P. 2 8 4 )
(if equipped)
Front fog light indicator
( P. 2 1 6 )*1, 3
(if equipped)
Pre-collision system warn-
ing light
( P. 2 9 1 )
Cruise control indicator
(  P. 2 2 9 , 2 3 3 )
*4, 6
(if equipped)
BSM (Blind Spot Monitor)
outside rear view mirror
indicators ( P. 2 9 7 )
(if equipped)
Dynamic radar cruise con-
trol indicator ( P. 2 3 3 )*7Security indicator
( P. 76 , 7 8 )
Cruise control “SET” indica-
tor ( P. 229, 233)
*5Low outside temperature
indicator ( P. 9 0 , 9 6 )

872. Instrument cluster
2
Instrument cluster
RC350/RCF_U (OM24636U)
RC F
●TVD (Torque Vectoring Differential) control mode indicators (RC F)
*1: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being perfor med. They will turn off after the engine is
on, or after a few seconds. There may be a malfunction in a system if a light does not
come on, or turn off. Have the vehi cle inspected by your Lexus dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turn ed off. The light will flash quickly when the
system is operating.
*4: In order to confirm operation, the BSM outside rear view mirror indicators illuminate in the following situations:
• When the engine switch is turned to IGNITION ON mode while the BSM main
switch is turned on.
• When the BSM main switch is turned on while the engine swit ch is in IGNITION
ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators will
turn off after a few seconds.
If the BSM outside rear view mirror indica tors do not illuminate or do not turn off,
there may be a malfunction in the system.
If this occurs, have the vehicle inspected by your Lexus dealer.
*5: When the outside temperature is approximately 37 F (3 C) or lower, the indicator
will flash for approximately 10 seconds, then stay on.
*6: This light illuminates on the outside rear view mirrors.
*7: This light illuminates on the center panel.
*8:RC F“NORMAL” indicator
(
 P. 2 7 8 ) Eco drive mode indicator
(
 P. 2 7 8 )
“SPORT S” indicator
(  P. 2 7 8 ) “SPORT S+” indicator
(
 P. 2 7 8 )
Snow mode indicator
(  P. 2 0 0 )
(if equipped)
“STANDARD” indicator
( P. 313)
(if equipped)
“SLALOM” indicator
( P. 313)
(if equipped)
“TRACK” indicator
( P. 313)

1022. Instrument cluster
RC350/RCF_U (OM24636U)
■Instrument panel brightness adjustment
The instrument panel brig htness levels when the tail ligh ts are on and off can be adjusted
individually. However, when the surroundings ar e bright (daytime, etc.), turning on the tail
lights will not change the instru ment panel brightness. At this time, any adjustments made
to the instrument panel bright ness levels will be applied to both settings at once.
■Dimming the analog speedometer lighting
The analog speedometer lighting will be dimm ed when the ambient light is bright, such
as during the daytime, and SPORT S or SPORT S+ mode is selected.
■Outside temperature display
●In the following situations, the correct outside temperature may not be displayed, or the
display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has change d suddenly (at the entrance/exit of a
garage, tunnel, etc.)
●When “ ” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to your Lexus dealer.
■Pop-up display
●In some situations, such as when a switch operation is pe rformed, a pop-up display will
be temporarily displayed on the multi-information display.
●Some pop-up displays can be set on/off. ( P. 1 1 9 )
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
The meter display can be customized on the multi-information display. (P. 1 1 0 )
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator of the tachometer enter the red zone, as it represents the
engine speed range which exceeds the maximum safe engine speed.
●In the following situations, the engine may be overheating. In this case, immediately
stop the vehicle in a safe place, and check the engine after it has cooled completely.
(  P. 5 9 7 )
• The engine coolant temperature gauge indi cator ( ) is in the red zone and flash-
ing.
• The engine oil temperature gauge indicato r ( ) is in the red zone and flashing.

1433-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC350/RCF_U (OM24636U)
■Tr u n k l i g h t
●The trunk light turns on when the trunk is opened.
●If the trunk light is left on when the engine switch is turned off, the light will go off auto-
matically after 20 minutes.
■Function to prevent the trunk being lo cked with the electronic key inside
●When both side doors are locked, closing the trunk lid with the electronic key left inside
the trunk will sound an alarm.
In this case, the trunk lid can be opened by pressing the trunk release button on the
trunk lid.
●If the spare electronic key is put in the tr unk with both side doors locked, the key con-
finement prevention function is activated so the trunk can be opened. In order to pre-
vent theft, take all electronic keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with both side doors locked, the key may not be
detected depending on the location of the key and the surrounding radio wave condi-
tions. In this case, the key confinement prevention function cannot be activated, causing
the doors to lock when the trunk is closed. Make sure to check where the key is before
closing the trunk.
●The key confinement prevention function cannot be activated if either door is unlocked.
In this case, open the trunk using the trunk opener.
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 5 9 1 )
■If the smart access system with push-butto n start or the wireless remote control does
not operate properly
Use the mechanical key to unlock the trunk. ( P. 5 9 1 )
Replace the key battery with a new one if it is depleted. ( P. 5 0 7 )
■When leaving a key to the vehi cle with a parking attendant
 P. 1 3 2
■Customization
The trunk unlocking operation can be changed. (Customizable features: P. 6 3 5 )
The trunk lid can be open
ed by pulling the glow-
in-the-dark lever located on the inside of the
trunk lid upward.
The lever will continue to glow for some time
after the trunk lid is closed.

1763-5. Opening, closing the windows and moon roof
RC350/RCF_U (OM24636U)
■The moon roof can be operated when
The engine switch is in IGNITION ON mode.
■Operating the moon roof after turning the engine off
The moon roof can be operated for approximately 45 seconds after the engine switch is
turned to ACCESSORY mode or turned off. It cannot, however, be operated once either
door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while the moon roof is clos-
ing or tilting down, travel is stoppe d and the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will open
automatically when the moon roof is opened.
■Door lock linked moon roof operation
●The moon roof can be opened and closed using the mechanical key.* ( P. 5 9 1 )
●The moon roof can be opened us ing the wireless remote control.* ( P. 1 3 5 )
*: These settings must be cust omized at your Lexus dealer.
■If the moon roof does not close normally
Perform the following procedure:
Stop the vehicle.
Press and hold the “CLOSE” switch.
*
The moon roof will close, reopen and pause for approximately 10 seconds. Then it will
close again and stop at the completely closed position.
Check to make sure that the moon roof is completely closed and then release the
switch.
*: If the switch is released at the incorrect time, the procedure will have to be performed
again from the beginning.
If the moon roof does not fully close even after performing the above procedure cor-
rectly, have the vehicle inspected by your Lexus dealer.
1
2
3

1824-1. Before driving
RC350/RCF_U (OM24636U)
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the engine running. This
prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing th e accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in oper-
ating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your righ t foot. Depressing the brake pedal using
your left foot may delay response in an emergency, resulting in an accident.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.
●During normal driving, do not turn off the engine. Turning the engine off while driving
will not cause loss of steering or braking co ntrol, but the power assist to these systems
will be lost. This will make it more difficul t to steer and brake, so you should pull over
and stop the vehicle as soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 5 2 3
●Use engine braking (downshift) to maintain a safe speed when driving down a steep
hill.
Using the brakes continuously may cause th e brakes to overheat and lose effective-
ness. ( P. 1 9 9 )
●Do not adjust the positions of the steering wh eel, the seat, or the inside or outside rear
view mirrors while driving.
Doing so may result in a loss of vehicle control.
●Always check that all passengers’ arms, heads or other parts of their body are not
outside the vehicle.
●Do not drive in excess of the speed limit. Ev en if the legal speed limit permits it, do not
drive over 85 mph (140 km/h) unless your vehicle has high-speed capability tires.
Driving over 85 mph (140 km/h) may result in tire failure, loss of control and possible
injury. Be sure to consult a tire dealer to determine whether the tires on your vehicle
are high-speed capability tires or not before driving at such speeds.

1834-1. Before driving
4
Driving
RC350/RCF_U (OM24636U)
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and reduce your
ability to control the vehicle.
●Sudden acceleration, engine braking due to shifting, or changes in engine speed
could cause the vehicle to skid.
●After driving through a puddle , lightly depress the brake pedal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected.
■When shifting the shift lever
●Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an acciden t or damage to the vehicle.
●Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Moving the shift lever to N while the vehicle is moving will disengage the engine from
the transmission. Engine braking is not available when N is selected.
●Be careful not to shift the shift lever with the accelerator pedal depressed. Shifting the
shift lever to a gear other than P or N may lead to unexpected rapid acceleration of
the vehicle that may cause an accident and result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indicators) (RC350)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Front brakes on F SPORT models only: Moderate levels of brake pad and disc wear
allow enhanced front braking power. As a re sult, the discs may wear more quickly than
conventional brake discs. Therefore, when replacing the brake pads, Lexus recom-
mends that you also have the thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.
■If a brake pad wear warning message is displayed (RC F)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Moderate levels of the brake pad and disc wear allow enhanced braking power. As a
result, the discs may wear more quickly than conventional brake discs. Therefore, when
replacing the brake pads, Lexus recommends that you also have the thickness of the
discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.