2015 LEXUS RX450h Owners Manual

4911-1. Hybrid system
Before driving Hybrid vehicle driving tips For economical and ecological driving, pay attention to the following
points:
■ Use of Hybrid System Indicator More Eco-friendly driving is possib le by keeping the indicate of Hybrid
System Indicator within Eco area.
■ When braking the vehicle Make sure to operate the brakes ge ntly and in good time. A greater
amount of electrical energy can be retained when slowing down.
■ Delays Repeated acceleration and deceleration, as well as long waits at traffic
lights, will lead to bad fu el consumption. Check traffic reports before leav-
ing and avoid delays as much as possible. When encountering a delay,
gently release the brake pedal to allow the vehicle to move forward slightly
while avoiding overuse of the accelerato r pedal. Doing so can help control
excessive gasoline consumption.
■ Highway driving Control your speed and keep at a constant speed. Also, before stopping at
a toll booth or similar, allow plenty of time to release the accelerator and
gently apply the brakes. A greater amount of electrical energy can be
retained when slowing down.
■ Air conditioning Use the air conditioning only when necessary. Doing so can help control
excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode. Doing so
will help to reduce the burden on the air conditioning and reduce fuel con-
sumption as well.
In winter: Because the gasoline engine will not automatically cut out until
the gasoline engine and the interior of the vehicle are warm, it will con-
sume fuel. Also, fuel consumption can be improved by avoiding overuse of
the heater.

501-1. Hybrid system
■ Checking tire inflation pressure Make sure to check the tire inflation pressure frequently.
Improper tire inflation pressure can cause poor fu el consumption.
Also, as snow tires can cause large amounts of friction, their use on dry
roads can lead to poor fuel consumptio n. Use a tire that is appropriate for
the season.
■ Luggage Carrying heavy luggage can lead to poor fuel consumption. Avoid carry-
ing unnecessary luggage. Installing a large roof rack can also cause poor
fuel consumption.
■ Warming up before driving Since the gasoline engine starts up and cuts out automatically when cold,
warming up the engine is unnecessary. Moreover, frequently driving short
distances will cause the engine to repeatedly warm up, which can lead to
poor fuel consumption.

511
Before driving 1-2. Key information
Keys The following keys are provided with the vehicle.
Electronic keys • Operating the smart access
system with push-button start
(  P. 5 6 )
• Operating the wireless
remote control function
(  P. 6 9 )
Mechanical keys
Key number plate
Card key (electronic key)
(if equipped) Operating the smart access sys-
tem with push-button start
(  P. 5 6 )

521-2. Key information
Using the mechanical key
To take out the mechanical key:
Electronic keys: Slide the release
lever and take the key out.
Card key: Press the lock release
button and take the key out. If the key cannot be inserted in a
lock cylinder, turn it over and re-
attempt to insert it. The mechanical
key with grooves on one side can
be inserted in one direction only.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical key together with
the electronic key. If the electronic
key battery is depleted or the entry
function does not operate properly,
you will need the mechanical key.
(  P. 7 8 1 )■
Card key (if equipped) ●
The mechanical key that is stored inside the card key should be used only if a
problem arises, such as when the key does not operate properly.●
If it is difficult to take out the mechanical key, press down the lock release button
using a pen tip etc. If it is still difficult to pull it out, use a coin etc.
●
To store the mechanical key in the card
key, insert it while pressing the lock
release button.

531-2. Key information
1
Before driving ●
The card key is not waterproof.■
When required to leave the vehicle’s key with a parking attendant
Lock the glove box as circumstances demand. (  P. 5 8 6 )
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.■
Key number plate
Keep the plate in a safe place such as your wallet, not in the vehicle. In the event that
a mechanical key is lost, a new key can be made at your Lexus dealer using the key
number plate. (  P. 7 8 0 )■
When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press any
buttons on the electronic key while inside the aircraft cabin. If you are carrying an
electronic key in your bag etc., ensure that the buttons are not li kely to be pressed
accidentally. Pressing a button may cause the electronic key to emit radio waves
that could interfere with the operation of the aircraft. ●
If the battery cover is not installed and
the battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive termi-
nal facing the Lexus emblem.

541-2. Key information
NOTICE■
To prevent key damage
Observe the following: ●
Do not drop the keys, subject them to strong shocks or bend them.●
Do not expose the keys to high temperatures for a long period of time.●
Do not get the keys wet or wash them in an ultrasonic washer etc.●
Do not attach metallic or magnetic materials to the keys or place the keys close to
such materials.●
Do not disassemble the keys.●
Do not attach a sticker or anything else to the surface of the electronic key.●
Do not place the keys near objects that produce magnetic fields, such as TVs,
audio systems, induction cookers, or medi cal electrical equipment, such as low-
frequency therapy equipment.■
Carrying the electronic key on your person
Carry the electronic key 3.9 in. (10 cm) or more away from electric appliances that
are turned on. Radio waves emitted from electric appliances within 3.9 in. (10 cm)
of the electronic key may interfere with the key, causing the key to not function
properly.■
In case of a smart access system with push-button start malfunction or other key-
related problems
Take your vehicle with all the electronic ke ys provided with your vehicle, including
the card key, to your Lexus dealer.■
When a vehicle key is lost
If the key remains lost, the risk of vehi cle theft increases significantly. Visit your
Lexus dealer immediately with all remaining electronic keys and the card key that
was provided with your vehicle.

551-2. Key information
1
Before driving NOTICE■
Precautions for handling the card key ●
Do not apply excess force when inserting the mechanical key into the card key.
Doing so may damage the card key.●
If the battery or card key terminals get wet, the battery may corrode and the card
key may stop working.
If the key is dropped into water, or if drinking water etc. is spilled on the key,
immediately remove the battery cover and wipe the battery and terminals. (To
remove the battery cover, lightly grasp and pull it.) If the battery is corroded, have
your Lexus dealer replace the battery.●
Do not crush the battery cover or use a screwdriver to remove the battery cover.
Forcibly removing the battery co ver may bend or damage the key.●
If the battery cover is frequently removed, the battery cover may become loose.●
When installing the battery, make sure to check the direct ion of the battery.
Installing the battery in the wrong direct ion may cause the battery to deplete rap-
idly.●
The surface of the card key may be damage d, or its coating may peel off in the
following situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical
pencil.
• The surface of the card key is wiped with thinner or benzene.

561-3. Opening, closing and locking the doors
Smart access system with push-button start The following operations can be performed simply by carrying the elec-
tronic key (including the card key) on your person, for example in your
pocket.
(The driver should always carry the electronic key.)
Locks and unlocks the side doors (  P. 5 7 )
Locks and unlocks the back door (  P. 5 7 )
Starts the hybrid system (  P. 177) Electronic keyElectronic key
Electronic key