2015 LEXUS RX350 engine

6834-3. Do-it-yourself maintenance
4
Maintenance and care
Washer fluid
If any washer does not work or the
warning message appears on the
multi-information display, the
washer tank may be empty. Add
washer fluid.NOTICE■
When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all accesso-
ries are turned off.
CAUTION■
When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid contains
alcohol and may catch fire if spilled on the engine etc.
NOTICE■
Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
■
Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.

6864-3. Do-it-yourself maintenance
■ How to initialize the tire pressure warning system
Park the vehicle in a safe plac e and turn the “ENGINE START
STOP” switch off. While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified co ld tire inflation
pressure level. (  P. 815)Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Press and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Wait for a few minutes in “ENG INE START STOP” switch to on,
and then turn the “ENGINE START STOP” switch off.STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

6894-3. Do-it-yourself maintenance
4
Maintenance and care ■
The initialization operation ●
Make sure to carry out initialization af ter adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire infla-
tion pressure adjustment.●
If you have accidentally turned the “ENGINE START STOP” switch off during
initialization, it is not necessary to pres s the reset switch again as initialization
will restart automatically when the “ENGINE START STOP” switch has been
turned to IGNITION ON mode for the next time.●
If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to th e specified level when the tires are cold,
and conduct initialization again.■
When the initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases,
the settings have not been recorded and the system will not operate properly. If
repeated attempts to record tire inflation pressure settings are unsuccessful, have
the vehicle inspected by your Lexus dealer. ●
When operating the tire pressure warnin g reset switch, the tire pressure warn-
ing light does not blink 3 times. ●
After carrying out the initialization proc edure, the tire pressure warning light
blinks for 1 minute then stays on after driving for 20 minutes.

6994-3. Do-it-yourself maintenance
4
Maintenance and care Air conditioning filter The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
■ Removal method
Turn the “ENGINE START STOP” switch off.
Open the glove box. Lift and
remove the partition.
Remove the glove box cover.STEP 1
STEP 2
STEP 3

7034-3. Do-it-yourself maintenance
4
Maintenance and care Checking and replacing fuses If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and re place the fuses as necessary.
Turn the “ENGINE START STOP” switch off.
After a system failure, see “Fuse layout and amperage ratings”
for details about which fuse to check. (  P. 7 0 6 )
Remove the engine compartment cover. (  P. 671)
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Driver's side instrument panel
Remove the lid.STEP 1
STEP 2
STEP 3
STEP 4

7064-3. Do-it-yourself maintenance
Fuse layout and amperage ratings
■ Engine compartment
Fuse Ampere Circuit1
RDI FAN NO. 1 80 A Electric cooling fans2
RR DEF 50 A Rear window defogger3
AIR SUS 50 A4
HEATER 50 A Air conditioning system5
SPARE 30 A6
SPARE 40 A7
ABS NO. 2 30 A Vehicle stability control8
H-LP CLN 30 A Headlight cleaner9
PBD 30 A Power back door10
ST 30 A Starter system
11
PD 50 A A/F, H-LP RH HI, H-LP LH LO, H-LP
RH LO, H-LP LH HI, HORN, S-
HORN
12
ABS NO. 1 50 A Vehicle stability control

7164-3. Do-it-yourself maintenance
Headlight aim ■ Removing the engine compartment cover
 P. 6 7 1
■ Vertical movement adjusting bolts
Vehicles with halogen headlights
Adjustment bolt A
Adjustment bolt B
Vehicles with discharge headlights
Adjustment bolt A
Adjustment bolt B
■ Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.STEP 1
STEP 2
STEP 3
STEP 4

7194-3. Do-it-yourself maintenance
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Maintenance and care Light bulbs You may replace the following bulbs by yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb replacement
seems difficult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. (  P. 817)
■ Removing the engine compartment covers
 P. 6 7 1
■ Turning off the power back door main switch
 P. 5 8
■ Front bulb locations
Vehicles with halogen headlights Headlight high beamHeadlight low beam
Front turn signal light