2011 LEXUS RX350 check engine

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4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior................... 444
Cleaning and protecting
the vehicle interior .................... 447
4-2. Maintenance
Maintenance requirements .... 450
General maintenance ................ 452
Emission inspection and
maintenance (I/M)
programs ...................................... 456
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions .................................. 457
Hood.................................................. 460
Positioning a floor jack................ 461
Engine compartment.................. 463
Tires ................................................... 478
Tire inflation pressure ................. 487
Wheels............................................... 491
Air conditioning filter.................. 493
Electronic key battery ................ 496
Checking and replacing
fuses ............................................... 498
Headlight aim
(discharge headlights) ........... 509
Light bulbs .......................................... 511
5-1. Essential information
Emergency flashers .................... 524
If your vehicle needs to
be towed ....................................... 525
If you think something
is wrong .......................................... 531
Fuel pump shut off system ........ 532
Event data recorder.................... 533
5-2. Steps to take in an emergency
If a warning light turns
on or a warning buzzer
sounds... ....................................... 535
If a warning message is
displayed....................................... 545
If you have a flat tire..................... 564
If the engine will not start .......... 577
If the shift lever cannot be
shifted from P .............................. 579
If you lose your keys ................... 580
If the electronic key does
not operate properly ................ 581
If the battery is discharged ...... 584
If your vehicle overheats ........... 587
If the vehicle becomes
stuck............................................... 590
If your vehicle has to be
stopped in an
emergency .................................... 591
4Maintenance and care5When trouble arises

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For your information
Main Owner’s Manual
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ from
your vehicle in terms of color and equipment.
Noise from under vehicle after turning off the engine
Approximately five hours after the engine is turned off, you may hear sound coming
from under the vehicle for several minutes. This is the sound of a fuel evaporation
leakage check and, it does not indicate a malfunction.
Accessories, spare parts and modification of your Lexus
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are
currently available in the market. You should know that Toyota does not warrant
these products and is not responsible for their performance, repair, or replacement,
or for any damage they may cause to, or adverse effect they may have on, your
Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification
with non-genuine Lexus products could affect its performance, safety or durability,
and may even violate governmental regulations. In addition, damage or perfor-
mance problems resulting from the modification may not be covered under war-
ranty.
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the multiport fuel injection system/sequential multiport
fuel injection system, cruise control system, anti-lock brake system, SRS airbag sys-
tem and seat belt pretensioner system, be sure to check with your Lexus dealer for
precautionary measures or special instructions regarding installation.

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1-3. Adjustable components (seats, mirrors, steering wheel)
Driving position memory∗
Your preferred driving position (the position of the driver's seat, steering
wheel and outside rear view mirrors) can be memorized and recalled with
the touch of a button. It is also possible to set this function to activate auto-
matically when the doors are unlocked.
Three different driving positions can be entered into memory.
nEntering a position to memory
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Adjust the driver’s seat, steering wheel and outside rear view
mirrors to the desired positions.
Press the “SET” button, then
within 3 seconds press button
“1”, “2” or “3” until the signal
beeps.
If the selected button has
already been preset, the previ-
ously recorded position will be
overwritten.
nRecalling the memorized position
Check that the shift lever is set in P.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Press button “1”, “2” or “3” until
the signal beeps to recall the
desired position.
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3
∗: If equipped

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2-1. Driving procedures
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When driving
CAUTION
lDo not under any circumstances shift the shift lever to R while the vehicle is mov-
ing forward.
Doing so can cause significant damage to the driveline and may result in a loss of
vehicle control.
lDo not shift the shift lever to N while the vehicle is moving.
Doing so may cause insufficient engine braking, resulting in an accident.
lDo not turn the engine off while driving.
The power steering and brake booster will not operate properly if the engine is
not running.
lUse engine braking (downshift) to maintain a safe speed when driving down a
steep hill.
Using the brakes continuously may cause the brakes to overheat and lose effec-
tiveness. (→P. 1 5 9 )
lWhen stopped on an incline, use the brake pedal and parking brake to prevent
the vehicle from rolling backward or forward, causing an accident.
lDo not adjust the position of the steering wheel, the seat, or the inside or outside
rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents, resulting
in death or serious injury.
lAlways check that all passengers' arms, heads or other parts of their body are not
outside the vehicle, as this may result in death or serious injury.
lDo not drive in excess of the speed limit. Even 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.

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2-1. Driving procedures
CAUTION
nWhen driving on slippery road surfaces
lSudden braking, acceleration and steering may cause tire slippage and reduce
your ability to control the vehicle, resulting in an accident.
lSudden changes in engine speed, such as engine braking caused by up-shifting
and down-shifting, may cause the vehicle to skid, resulting in an accident.
lAfter 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
functioning properly. If the brakes on only one side are wet and not functioning
properly, steering control may be affected, resulting in an accident.
nWhen shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an
accident and result in death or serious injury.
nWhen the vehicle is stopped
lDo not race the engine.
If the vehicle is in any gear other than P or N, the vehicle may accelerate suddenly
and unexpectedly, causing an accident.
lDo not leave the vehicle with the engine running for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and
check that exhaust fumes do not enter the vehicle interior.
lIn order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while the engine is running, and apply the parking
brake as necessary.
lIf the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, always depress the brake pedal and securely
apply the parking brake as needed.
lAvoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the
exhaust system to overheat, which could result in a fire if combustible material is
nearby.

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2-1. Driving procedures
CAUTION
lIf the vehicle is in a poorly ventilated area, stop the engine. In a closed area, such
as a garage, exhaust gases may collect and enter the vehicle. This may lead to
death or a serious health hazard.
lThe exhaust system should be checked occasionally. 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. Failure to do so
may allow exhaust gases to enter the vehicle, resulting in death or a serious health
hazard.
nWhen taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever or
depress the accelerator pedal, this could cause an accident or fire due to engine
overheating. Additionally, if the vehicle is parked in a poorly ventilated area, exhaust
gases may collect and enter the vehicle, leading to death or a serious health hazard.
nWhen braking the vehicle
lWhen the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause one side
of the vehicle to brake differently than the other side. Also, the parking brake may
not securely hold the vehicle.
lIf the power brake assist function does not operate, do not follow other vehicles
closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be depressed
more firmly than usual. Also, the braking distance will increase.
lDo not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted brakes.
lThe brake system consists of 2 individual hydraulic systems: if one of the systems
fails, the other will still operate. In this case, the brake pedal should be depressed
more firmly than usual and the braking distance will increase.
If this happens, do not drive the vehicle. Have your brakes fixed immediately.
nIf the vehicle becomes stuck
Do not spin the wheels excessively when any of the tires is up in the air, or the vehi-
cle is stuck in sand, mud, etc. This may damage the driveline components or propel
the vehicle forward or backward, causing an accident.

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2-1. Driving procedures
NOTICE
nWhen encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle:
lEngine stalling
lShort in electrical components
lEngine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following:
lBrake function
lChanges in quantity and quality of oil and fluid used for the engine, transaxle,
transfer (AWD models), differential, etc.
lLubricant condition for the propeller shaft (AWD models), bearings and suspen-
sion joints (where possible) and the function of all joints, bearings, etc.

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2-1. Driving procedures
2

When driving
Engine (ignition) switch
Performing the following operations when carrying the electronic key on
your person starts the engine or changes “ENGINE START STOP” switch
modes.
nStarting the engine
Check that the parking brake is set.
Check that the shift lever is set in P.
Firmly depress the brake pedal.
The “ENGINE START STOP” switch indicator will turn green. If the
indicator does not turn green, the engine cannot be started.
Press the “ENGINE START
STOP” switch.
The engine will crank until it
starts or for up to 30 seconds,
whichever is less.
Continue depressing the brake
pedal until the engine is com-
pletely started.
The engine can be started from
any mode.
nStopping the engine
Stop the vehicle.
Shift the shift lever to P.
Set the parking brake. (→P. 1 6 4 )
Press the “ENGINE START STOP” switch.
Release the brake pedal and check that the indicator on the
“ENGINE START STOP” switch is off.
STEP1
STEP2
STEP3
STEP4
STEP1
STEP2
STEP3
STEP4
STEP5