2011 LEXUS RX350 engine

493
4-3. Do-it-yourself maintenance
4

Maintenance and care
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
nRemoval method
Set the air conditioning system to recirculated mode.
(→P. 277)
The air conditioning filter case cannot be removed with the system in
outside air mode.
Turn the “ENGINE START STOP” switch off.
Open the glove box door. Lift
and remove the partition.
Remove the glove box cover.
Remove the filter cover.
STEP1
STEP2
STEP3
STEP4
STEP5

498
4-3. Do-it-yourself maintenance
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the “ENGINE START STOP” switch off.
Remove the engine compartment cover. (→P. 464)
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Driver's side instrument panel
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
for details about which fuse to check. (→P. 501)
STEP1
STEP2
STEP3
STEP4

501
4-3. Do-it-yourself maintenance
4

Maintenance and care
Fuse layout and amperage ratings
nEngine compartment
FuseAmpereCircuit
1RDI FAN NO. 180 AElectric cooling fans
2RR DEF50 ARear window defogger
3AIR SUS50 A
4HTR50 AAir conditioning system
5SPARE30 A
6SPARE40 A
7ABS NO. 230 AAnti-lock brake system
8H-LP CLN30 AHeadlight cleaner
9PBD30 APower back door system
10ST30 AStarter system

509
4-3. Do-it-yourself maintenance
4

Maintenance and care
Headlight aim (discharge headlights)
nVertical movement adjustment bolts
Adjustment bolt A
Adjustment bolt B
nBefore checking the headlight aim
Remove the engine compartment cover. (→P. 464)
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.
nAdjusting the headlight aim
Turn bolt A in either direction
using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1

511
4-3. Do-it-yourself maintenance
4

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.
nPreparing for light bulb replacement
Check the wattage of the light bulb to be replaced. (→P. 605)
nRemoving the engine compartment covers
→P. 4 6 4
nTurning off the power back door main switch (if equipped)
→P. 5 2
nFront bulb locations
Discharge headlights
Front side
marker light
Daytime running light
Front turn
signal light
Parking light

524
5-1. Essential information
Emergency flashers
NOTICE
nTo prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the engine is
not running.
Use the emergency flashers if the vehicle malfunctions or is involved in an
accident.
Press the switch to flash all the
turn signal lights. To turn them
off, press the switch once again.

5

When trouble arises
525
5-1. Essential information
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
lThe engine is running, but the vehicle will not move.
lThe vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing service, using a lift-type truck or a
flatbed truck.
Use a safety chain system for all towing, and abide by all state/provincial
and local laws.
2WD models: If towing your vehicle with a wheel-lift type truck from the
front, the vehicle's rear wheels and axles must be in good conditions.
(→P. 527, 530)
If they are damaged, use a towing dolly or flatbed truck.
AWD models: If towing your vehicle with a wheel-lift type truck, use a tow-
ing dolly. (→P. 5 2 7 , 5 3 0 )

5

When trouble arises
529
5-1. Essential information
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45°.
Do not overly tighten the tie downs
or the vehicle may be damaged.
nBefore emergency towing
Release the parking brake.
Shift the shift lever to N.
Turn the “ENGINE START STOP” switch to ACCESSORY (engine off )
or IGNITION ON (engine running) mode.
nLocation of the emergency towing eyelet
→P. 5 6 5
CAUTION
nCaution while towing
lUse extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelets and the cables or chains. Always be cautious of the
surroundings and other vehicles while towing.
lIf the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
nInstalling towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing. This may
lead to accidents that cause serious injury or even death.
STEP1
STEP2
STEP3