2015 LEXUS RX450h suspension

1441-8. Safety information
CAUTION■
SRS airbag precautions ●
Do not place anything, such as a cushion, on the front passenger's seat. Doing so
will disperse the passenger's weight, wh ich prevents the sensor from detecting
the passenger's weight properly. As a re sult, the SRS front passenger airbag may
not deploy in the event of a collision.■
Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perfor m any of the followin g modifications with-
out consulting your Lexus dealer.
The SRS airbags may malfunction or deploy (inflate) accidentally, causing death or
serious injury. ●
Installation, removal, disassembly and repair of the SRS airbags●
Repairs, modifications, removal or replac ement of the steering wheel, instrument
panel, dashboard, seats or seat upholstery, front, side and rear pillars or roof side
rails●
Repairs or modifications of the front fend er, front bumper, or side of the occupant
compartment●
Installation of a grille guard (bull bars, kangaroo bar, etc.), snow plows or winches●
Modifications to the vehi cle's suspension system●
Installation of elec tronic devices such as mobile two-way radios or CD players●
Modifications to your vehicle for a person with a physical disability

2562-4. Using other driving systems
■
Sensor detection information ●
Certain vehicle conditions and the su rrounding environment may affect the
ability of a sensor to correctly detect an obstacle. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on a sensor.
• A sensor is frozen.
• A sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,
air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensor s in the vicinity.
• A sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• Towing eyelets are installed.
• A bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or right-angled curb.
• In harsh sunlight or intense cold weather.
• A non-genuine Lexus suspension (low ered suspension, etc.) is installed.
In addition to the examples above, there are instances in which, because of their
shapes, signs and other objects may be judg ed by a sensor to be closer than they
are. ●
The shape of the obstacle may prevent a sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materi als that absorb sound waves
• Sharply-angled objects
•Low obstacles
• Tall obstacles with upper sections projec ting outwards in the direction of your
vehicle
■
If a message is displayed
 P. 74 3

2752-4. Using other driving systems
2
When driving CAUTION■
When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause
an accident, resulting in death or serious injury. Exercise particular care when the
indicator light flashes.■
When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are the systems to help ensure vehicle stability and driving force, do not turn
the TRAC/VSC systems off unless necessary.■
Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
inflation pressure level.
The ABS and VSC systems will not function correctly if different tires are installed
on the vehicle.
Contact your Lexus dealer for further info rmation when replacing tires or wheels.■
Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause a system malfunction.

2942-5. Driving information
■
Additional information for off-road driving
For owners in U.S. mainland, Hawaii and Puerto Rico:
To obtain additional information pertaining to driving your vehicle off-road, consult
the following organizations. ●
State and Local Parks and Recreation Departments●
State Motor Vehicle Bureau●
Recreational Vehicle Clubs●
U.S. Forest Service and Bureau of Land Management
CAUTION■
Off-road driving precautions
Always observe the following precautions to minimize the risk of death or serious
injury or damage to your vehicle: ●
Drive carefully when off the road. Do not take unnecessary risks by driving in
dangerous places.●
Do not grip the steering wheel spokes wh en driving off-road. A bad bump could
jerk the wheel and injure your hands. Keep both hands and especially your
thumbs on the outside of the rim.●
Always check your brakes for effectiveness immediately after driving in sand,
mud, water or snow.●
After driving through tall grass, mud, rock , sand, water, etc., check that there is no
grass, bush, paper, rags, stone, sand, etc. adhering or trapped to the underbody.
Clear off any such matter from the underbody. If the vehicle is used with these
materials trapped or adhering to the underbody, a breakdown or fire could occur.●
When driving off-road or in rugged te rrain, do not drive at excessive speeds,
jump, make sharp turns, strike objects, etc. This may cause loss of control or vehi-
cle rollover causing death or serious injury. You are also risking expensive dam-
age to your vehicle’s suspension and chassis.

3192-5. Driving information
2
When driving ■
Matching trailer ball height to trailer coupler height
■
Before towing
Check that the following conditions are met: ●
Ensure that your vehicle’s ti res are properly inflated. (  P. 8 0 7 )●
Trailer tires are inflated according to the trailer manufacturer’s recommenda-
tion.●
All trailer lights work as required by law.●
All lights work each time you connect them.●
The trailer ball is set at the proper height for the coupler on the trailer.●
The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for improper tongue weight,
overloading, worn suspension , or other possible causes.
●
The trailer cargo is securely loaded.
●
The rear view mirrors conform to all applicable federal, state/provincial or local
regulations. If they do not, install rear view mirrors appropriate for towing pur-
poses. No matter which class of tow hitch applies,
for a more safe trailer hookup, the trailer ball
setup must be the proper height for the cou-
pler on the trailer.
Coupler
Trailer ball

7325-1. Essential information
If you think something is wrong If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■ Visible symptoms
● Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temper ature gauge needle continually points
higher than normal.
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
■ Operational symptoms
● Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking.
● Vehicle pulls heavily to one side when driving on a level road.
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor

8517
For owners ATTENTION■
Précautions avec les coussins gonflables SRS ●
Si vous avez des difficultés à respirer après le déploiement des coussins
gonflables SRS, ouvrez une porte ou une vitre pour faire entrer de l’air frais, ou
bien descendez du véhicule si cela ne présente pas de danger. Essuyez tout
résidu dès que possible afin d’éviter d’éventuelles irritations de la peau. ●
Si les parties renfermant les coussins gonflables SRS, telles que la garniture du
moyeu de volant et les garnitures de montants avant et arrière, apparaissent
abîmées ou craquelées, faites-les remplacer par votre concessionnaire Lexus.●
Ne placez rien sur le siège du passager avant, comme un coussin par exemple.
Cela a pour conséquence de répartir le poids du passager sur toute la surface du
siège, ce qui empêche le capteur de détecter correctement le poids du passager.
En conséquence, le coussin gonflable SRS du passager avant risque de ne pas se
déployer en cas de choc.■
Modification et mise au rebut des éléments du système de coussin gonflable SRS
Consultez impérativement votre concessionnaire Lexus si vous avez besoin
d’intervenir sur votre véhicule, de vous en séparer ou de procéder à l’une des
modifications suivantes.
Les coussins gonflables SRS peuvent ne pas fonctionner correctement ou se
déployer (se gonfler) accidentellement, provoquant la mort ou de graves blessures. ●
Installation, dépose, démontage et réparation des coussins gonflables SRS●
Réparations, modifications, démontage ou remplacement du volant, du tableau
de bord, de la planche de bord, des sièges ou de leur garniture, des montants
avant, latéraux et arrière ou des rails latéraux de toit●
Réparations ou modifications des ailes avant, du pare-chocs avant ou des flancs
de l’habitacle●
Installation d’un protège-calandre (pare-buffle, pare-kangourou, etc.), de
chasse-neiges ou de treuils
●
Modifications des suspensions du véhicule
●
Installation d’appareils électroniques tels que radio émetteur/récepteur ou
lecteurs CD
●
Aménagements du véhicule visant à permettre sa conduite par une personne
atteinte d’un handicap physique

8537
For owners ■ Vis de réglage dans l'axe vertical
Véhicules équipés de projecteurs à halogène
Vis de réglage A
Vis de réglage B
Véhicules équipés de projecteurs à décharge
Vis de réglage A
Vis de réglage B
■ Avant de vérifier le réglage du faisceau des phares
Vérifiez que le réservoir de carburant du véhicule est plein et
que la carrosserie autour des projecteurs n'a pas subi de choc
suffisant pour la déformer.
Stationnez le véhicule bien à plat.
Installez-vous dans le siège conducteur.
Donnez plusieurs impulsions à la carrosserie du véhicule de
manière à comprimer/détendre les suspensions.ÉTAPE
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