fuel pressure LEXUS RX350 2015 Owners Manual

TABLE OF CONTENTS Index
64-1. Maintenance and care
Cleaning and protecting
the vehicle exterior.................. 650
Cleaning and protecting
the vehicle interior ................... 653
4-2. Maintenance
Maintenance requ irements ..... 656
General maintenance ............... 659
Emission inspection and
maintenance (I/M)
programs ....................................... 663
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions .................................. 664
Hood.................................................. 667
Positioning a floor jack.............. 668
Engine compartment.................. 670
Tires .................................................. 684
Tire inflation pressure ................. 693
Wheels.............................................. 697
Air conditioning filter .................. 699
Electronic key battery ................. 701
Checking and replacing
fuses ................................................ 703
Headlight aim.................................. 716
Light bulbs ........................................ 719 5-1. Essential information
Emergency flashers..................... 734
If your vehicle needs to be
towed.............................................. 735
If you think something is
wrong ............................................. 742
Fuel pump shut off system ........ 743
5-2. Steps to take in an emergency
If a warning light turns on
or a warning buzzer
sounds... ........................................ 744
If a warning message is
displayed ....................................... 754
If you have a flat tire..................... 774
If the engine will not start .......... 789
If the shift lever cannot be
shifted from P ............................... 791
If you lose your keys .................... 792
If the electronic key does
not operate properly ............... 793
If the vehicle battery is
discharged ................................... 796
If your vehicle ov erheats ........... 799
If the vehicle becomes
stuck............................................... 802
If your vehicle has to
be stopped in an
emergency .................................. 8044
Maintenance and care 5
When trouble arises

9 : If equipped
* : For vehicles with a navigation system, re fer to the “Navigation Sy stem Owner’s Manual”.Tail lights P. 211
Rear window wiper P. 224
Tires
● Rotation
● Replacement
● Inflation pressure
● Information P. 684
P. 774
P. 815
P. 821 Rear side marker lights P. 211
Rear turn signal lights P. 187Back door opener button P. 56Back door P. 56
Fuel filler door P. 105
Side doors P. 52
Rear window defogger
* P. 361

6504-1. Maintenance and care
Cleaning and protecting the vehicle exterior
■
Automatic car washes ●
Before washing the vehicle:
•Fold the mirrors.
• Turn off the power back door system.●
Brushes used in automatic car washes may scratch the vehicle surface and
harm your vehicle’s paint.●
In certain automatic car washes, the re ar spoiler may interfere with machine
operation. This may prevent the vehicle fr om being cleaned properly or result in
damage to the rear spoiler.
■
High pressure car washes
●
Do not allow the nozzles of the car wash to come within close proximity of the
windows.
●
Before using the car wash, check that the fuel filler door on your vehicle is closed
properly.Perform the following to protect the vehicle and maintain it in prime condi-
tion:
● Working from top to bottom, liber ally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any dirt
and dust.
● Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
● For hard-to-remove marks, use car wash soap and rinse thor-
oughly with water.
● Wipe away any water.
● Wax the vehicle when the waterproof coating deteriorates.If water does not bead on a clean surface, apply wax when the vehicle
body is cool.

6954-3. Do-it-yourself maintenance
4
Maintenance and care ■
Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following: ●
Reduced fuel efficiency●
Reduced driving comfort and tire life●
Reduced safety●
Damage to the drive train
If a tire needs frequent inflating, have it checked by your Lexus dealer.■
Instructions for checking tire pressure
When checking tire inflation pressure, observe the following: ●
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for
more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure
reading.●
Always use a tire pressure gauge.
The appearance of the tire can be mislea ding. In addition, tire inflation pressure
that is even just a few pounds off can degrade ride and handling.●
Do not reduce tire inflation pressure after driving. It is normal for tire inflation
pressure to be higher after driving.●
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.

5
When trouble arises
7495-2. Steps to take in an emergency
■
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 lamp will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.■
SRS warning light
This warning light system monitors the airb ag sensor assembly, front airbag sensors,
side and curtain shield airbag sensors, curtain shield and rear side airbag sensors,
door sensors, driver's seat position sensor, driver's seat belt buckle switch, front
passenger occupant classification system (ECU and sensors), “AIR BAG ON” indi-
cator light, “AIR BAG OFF” in dicator light, front pass enger's seat belt buckle
switch, seat belt pretensioner assemblies, inflators, interconnecting wiring and
power sources. (  P. 1 1 9 )■
Front passenger detection sensor, passen ger 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 warning buzzer to sound
even if a passenger is not sitting in the seat.●
If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.■
Electric power steering system warning light (warning buzzer)
When the battery charge becomes insuffic ient or the voltage temporarily drops,
the electric power steering system warn ing 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 turn off the tire pressure warning light.

7525-2. Steps to take in an emergency
CAUTION■
Maintenance of the tires
Each tire, including the spare (if provided ), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressu re label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [t ire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicl e has been equipped with a tire pressure
monitoring system (TPMS-tire pressure wa rning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driv er's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malfunction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of rea-
sons, including the installation of replacem ent or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pres sure warning system) from functioning
properly. Always check the TPMS (tire pressure warning system) malfunction tell-
tale after replacing one or more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.

8286-1. Specifications
Glossary of tire terminology Tire related term Meaning
Cold tire inflation pres-
sure 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 pres-
sure The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressure Cold tire inflation pressure recommended by a man-
ufacturer
Accessory weight The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
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 equipp ed, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight 150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

880Alphabetical index
Tires
Chains ..................................................... 302
Checking ...............................................684
If you have a flat tire ...........................774
Inflation pressure................................693
Inflation pressure sensor............... 685
Information..............................................821
Replacing ................................................774
Rotating tires ........................................684
Size ............................................................ 815
Snow tires .............................................. 302
Spare tire.................................................774
Tire pressure warning
system ...................................... 684, 747
Tools ........................................................... 774
Total load capacity ................................ 301
Towing
Dinghy towing ..................................... 323
Emergency towing ........................... 735
Trailer towing.......................................306
TRAC......................................................... 269
Traction control ..................................... 269
Trailer towing..........................................306
Trip information display..................... 200
Trip meter ...................................................191
Turn signal lights
Replacing light bulbs.......................... 719
Switch ........................................................187
Wattage....................................................817 Under tray ...............................................608
USB port* .............. 394, 402, 510, 520
Vanity lights
Vanity lights............................................610
Wattage ................................................... 817
Vanity mirrors ......................................... 610
VDIM......................................................... 269
Vehicle data recordings ....................... 24
Vehicle dynamic s integrated
management ....................................... 269
Vehicle identification number......... 807
Vehicle stability control ..................... 269
Voice command switch* ........433, 566
Voice command system*....................451
VSC ........................................................... 269
Warning buzzers
Brake system ........................................ 744
Open door ........................................... 747
Seat belt reminder ............................. 747
Warning lights
Anti-lock brake system ...................745
Brake assist system ...........................745
Brake system ........................................ 744
Charging system ................................ 744
Electric power steering ...................745
Electronic engine control
system...................................................745
Low fuel level........................................ 747
Low tire pressure ............................... 747
Malfunction indicator lamp ...........745
Master warning light......................... 747U
V
W

881Alphabetical index
Open door ............................................ 747
Pre-collision system ......................... 745
Pretensioners ...................................... 745
Seat belt reminder light ................... 747
Slip indicator ........................................ 745
SRS airbags .......................................... 745
Tire pressure......................................... 747
Warning messages
Anti-lock brake system .................. 756
Automatic transmission fluid ....... 759
AWD system ...............755, 756, 759
Brake lamp system ........................... 756
Brake system ....................................... 754
Dynamic radar cruise
control system ..................... 756, 759
Electric power steering .................. 756
Engine oil maintenance.................. 759
Engine oil pressure........................... 755
Engine overheat................................. 759
Headlight leveling ............................. 756
Hood ....................................................... 759
Intuitive parking assist ......... 756, 759
Low fuel .................................................. 759
Moon roof ............................................. 759
Open door ........................................... 759
Parking brake ...................................... 759
Pre-collision system ............. 756, 759
Smart access system with
push-button start............................ 766
SRS airbags .......................................... 756
Steering lock ........................................ 756
Washer fluid......................................... 759 Washer
Checking .............................................. 683
Preparing and checking
before winter ....................................302
Switch......................................................... 217
Washing and waxing ...........................650
Weight
Cargo capacity .................................... 301
Load limits .............................................. 301
Weight.................................................... 806
Wheels ...................................................... 697
Window glasses ......................................98
Window lock switch ...............................98
Windows
Power windows .....................................98
Rear window defogger* ................. 361
Washer ..................................................... 217
Windshield wiper de-icer* ...............363
Windshield wipers..................................217
Wireless remote control....................... 49
Wireless remote control key
Replacing the battery........................ 701
WMA disc* .................................. 384, 501
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

883What to do if...
A warning light or indicator
light comes on P. 74 4
If a warning light turns on or a warning
buzzer sounds...
■ Warning lights
or orP. 74 4 P. 74 5
P. 74 7
or P. 74 5 P. 74 7
P. 74 7 P. 74 7
P. 74 5 P. 74 5
P. 74 7 P. 74 5
P. 74 4 P. 74 7
Slip indicator
P. 74 5
*: The light flashes to indicate a malfunction.Brake system warning light Malfunction indicator lamp
ABS warning light Driver’s seat belt
reminder light
Front passenger’s seat belt
reminder light
Low fuel level warning light Master warning light
SRS warning light Electric power steering system
warning light
Open door warning light Pre-collision system
warning light*
Charging system warning
light Tire pressure warning light