fuel LEXUS RX450h 2015 Owners Manual

TABLE OF CONTENTS Index
21-1. Hybrid system
Hybrid system .................................. 30
Hybrid system precautions ......... 34
Energy monitor/consumption
screen................................................ 39
Hybrid vehicle driving tips........... 49
1-2. Key information
Keys ....................................................... 51
1-3. Opening, closing and locking
the doors
Smart access system with
push-button start .......................... 56
Wireless remote control .............. 69
Side doors .......................................... 72
Back door ........................................... 75 1-4. Adjustable components
(seats, mirrors,
steering wheel)
Front seats .......................................... 86
Rear seats ........................................... 89
Driving position memory ............. 93
Head restraints................................. 97
Seat belts ............................................ 99
Steering wheel................................ 105
Anti-glare inside rear view
mirror .............................................. 107
Outside rear view mirrors ......... 109
1-5. Opening and closing the
windows and moon roof
Power windows................................ 112
Moon roof .......................................... 115
1-6. Refueling
Opening the fuel tank cap........... 119
1-7. Theft deterrent system
Immobilizer system ...................... 124
Alarm.................................................. 126
Theft prevention labels ............... 1291
Before drivingFor vehicles with a navigation system, refer to the “Navigation System Owner’s
Manual” for information regarding the equipment listed below.
• Navigation system
• Air conditioning controls
• Windshield wiper de-icer
• Rear view monitor system • Intuitive parking assist
• Audio/video system
• Rear window and outside rear view
mirror defogging

1
2
3
4
5
6
7
76-1. Specifications
Maintenance data
(fuel, oil level, etc.)..................... 798
Fuel information ............................. 810
Tire information.............................. 813
6-2. Customization
Customizable features ............. 825
6-3. Initialization
Items to initialize ........................... 837
Reporting safety defects
for U.S. owners.......................... 840
Seat belt instructions
for Canadian owners
(in French) ..................................... 841
SRS airbag instructions
for Canadian owners
(in French) ................................... 843
Headlight aim instructions
for Canadian owners
(in French) ................................... 852 Abbreviation list .................................. 858
Alphabetical index.............................. 860
What to do if... ...................................... 8746
Vehicle specifications
7
For owners Index

9 : If equipped
* : For vehicles with a navigation system, re fer to the “Navigation Sy stem Owner’s Manual”.Tail lights P. 217
Rear window wiper P. 229
Tires
● Rotation
● Replacement
● Inflation pressure
● Information P. 670
P. 764
P. 807
P. 813 Rear side marker lights P. 217
Rear turn signal lights P. 193Back door opener button P. 75Back door P. 75
Fuel filler door P. 119
Side doors P. 72
Rear window defogger
* P. 358

19D Pre-collision braking
off switch
 P. 279
 : If equipped
* : For vehicles with a navigation system, refe r to the “Navigation System Owner’s Manual”.E Cup holder P. 588
Headlight cleaner switch
 P. 231
Power back door switch P. 76
Fuel filler door opener P. 119
Instrument panel light
control buttons P. 198
“ODO/TRIP” button P. 198
Windshield wiper de-icer switch
 ,
* P. 360BSM main switch
 P. 286Tire pressure warning
reset switch P. 672

22For 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 contin ual 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 hybrid system Approximately five hours after the hybrid system is turned off, you may hear sound
coming from under the vehicle for several minutes. This is the sound of a fuel evapo-
ration 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 regula tions. In addition, damage or perfor-
mance problems resulting from the modi fication may not be covered under war-
ranty.

23Installation of a mobile two-way radio system The installation of a mobile two-way radio system in your vehicle could affect elec-
tronic systems such as: ●
Hybrid system●
Multiport fuel injection system/sequential multiport fuel injection system●
Cruise control system●
Dynamic radar cruise control system●
Anti-lock brake system●
SRS airbag system●
Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special
instructions regarding installation of a mobile two-way radio system.
High voltage parts and cables on the hybr id vehicles emit approximately the same
amount of electromagnetic waves as the conventional gasoline powered vehicles or
home electronic appliances despite of their electromagnetic shielding.
Unwanted noise may occur in the reception of the mobile two-way radio.
Vehicle data recordings Your Lexus is equipped with several soph isticated computers that will record cer-
tain data, such as:
•Engine speed
• Motor speed
• Accelerator status
•Brake status
•Vehicle speed
•Shift position
• Hybrid battery (traction battery) status
The recorded data varies according to the vehicle grade level and options with
which it is equipped. Furthermore, these computers do not record conversations,
sounds or pictures.

Before driving
1
291-1. Hybrid system
Hybrid system ........................... 30
Hybrid system precautions .... 34
Energy monitor/
consumption screen .............. 39
Hybrid vehicle driving tips...... 49
1-2. Key information
Keys ................................................ 51
1-3. Opening, closing and
locking the doors
Smart access system with
push-button start .................... 56
Wireless remote control ......... 69
Side doors.................................... 72
Back door .................................... 75
1-4. Adjustable components
(seats, mirrors,
steering wheel)
Front seats ................................... 86
Rear seats ................................... 89
Driving position memory ........ 93
Head restraints .......................... 97
Seat belts ..................................... 99
Steering wheel ......................... 105 Anti-glare inside rear view
mirror....................................... 107
Outside rear view
mirrors..................................... 109
1-5. Opening and closing the
windows and moon roof
Power windows ......................... 112
Moon roof .................................. 115
1-6. Refueling
Opening the fuel tank
cap ............................................. 119
1-7. Theft deterrent system
Immobilizer system ................ 124
Alarm.......................................... 126
Theft prevention labels ......... 129
1-8. Safety information
Correct driving posture ....... 130
SRS airbags .............................. 132
Front passenger occupant
classification system............ 145
Child restraint systems ......... 150
Installing child restraints....... 154

301-1. Hybrid system
Hybrid system Your vehicle is a hybrid vehicle. It has characteristics different from con-
ventional vehicles. Be sure you are clos ely familiar with the characteristics
of your vehicle, and operate with care.
The hybrid system combines the use of a gasoline engine and an electric
motor (traction motor) according to driving conditions, improving fuel effi-
ciency and reducing exhaust emissions.
Gasoline engine
Rear electric motor (Traction motor)*
Front electric motor (Traction motor)
*: AWD models only

351-1. Hybrid system
1
Before driving Hybrid battery air vents
There are air intake vents under
the rear seats for the purpose of
cooling the hybrid battery (traction
battery). If the vents become
blocked, the hybrid battery may
overheat, leading to a reduction in
hybrid battery output.
Emergency shut off system
When a certain level of impact is detected by the impact sensor, the
emergency shut off system blocks off the high voltage current and stops
the fuel pump to minimize the risk of electrocution and fuel leakage. If the
emergency shut off system activates, your vehicle will not restart. To
restart the hybrid system, contact your Lexus dealer.
Hybrid warning message
A message is automatically displayed when a malfunction occurs in the
hybrid system or an impr oper operation is attempted.
If a warning message is shown on
the multi-information display, read
the message and follow the
instructions. ( 
P. 743)

361-1. Hybrid system
■
If a warning light comes on or a warning message is displayed, or the 12-volt bat-
tery is disconnected
The hybrid system may not start. In that ca se, try to start the system again. If the
“READY” indicator does not come on, contact your Lexus dealer.■
When refueling, the fuel filler door may take a few moments to open
As part of emission system operation, it ma y take up to 10 seconds for the fuel filler
door to automatically release after the opener switch is pressed. Before refueling is
possible, a message will be shown on the multi-information display. (  P. 119, 755)■
Electromagnetic waves ●
High voltage parts and cables on the hybrid vehicles incorporate electromag-
netic shielding, and theref ore emit approximately the same amount of electro-
magnetic waves as conventional gasoline powered vehicles or home electronic
appliances.●
Your vehicle may cause sound interference in some third party-produced radio
parts.■
Running out of fuel
When the vehicle has run out of fuel and th e hybrid system cannot be started, refuel
the vehicle with at least enough gasoline to make the low fuel level warning light
(  P. 733) go off. If there is only a small amount of fuel, the hybrid system may not
be able to start. (The minimum amount of fuel to add to make the low fuel level
warning light go out is about 2.7 gal. [10.1 L, 2.2 Imp. gal.] when the vehicle is on a
level surface. This value may vary when the vehicle is on a slope.)■
Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of the
hybrid battery (traction battery) can chan ge in accordance with driving style and
driving conditions.