2012 Lexus LFA key battery

TABLE OF CONTENTSIndex
4
4-3. Do-it-yourself maintenanceDo-it-yourself service precautions .................................. 247
Hood................................................. 250
Positioning a floor jack............... 253
Engine compartment.................. 256
Adding washer fluid .................... 264
Battery .............................................. 265
Tires ................................................... 270
Tire inflation pressure ................. 277
Wheels............................................... 281
Air conditioning filter ................. 283
Wireless remote control battery ........................................... 285
Checking and replacing fuses ................................................ 287
Light bulbs ....................................... 299 5-1. Essential information
Emergency flashers.................... 302
If your vehicle needs to be towed ...................................... 303
If you think something is wrong ............................................ 308
Fuel pump shut off system ....... 309
Event data recorder ..................... 310
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ......................................... 312
If a warning message is displayed ....................................... 322
If you have a flat tire..................... 332
If the engine will not start .......... 343
If you lose your keys/ wireless remote control
transmitter .................................... 344
If the parking brake cannot be released .................................. 345
If the vehicle battery is discharged .................................. 348
If your vehicle ov erheats ............ 351
If the vehicle becomes stuck................................................ 354
If your vehicle has to be stopped in an
emergency .................................. 355
5When trouble arises

22
1-2.Opening, closing and locking the doors
Wireless remote control
The wireless remote control can be used to lock and unlock the vehicle from
outside the vehicle.
Locks both side doors
Unlocks both side doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other door.
Opens the windows (press and
hold)
*
*: This setting must be customizedat your Lexus dealer.
■Operation signals
The emergency flashers flash to indicate that the doors have been locked/unlocked.
(Locked: Once; Unlocked: Twice)
■Alarm
Using the key or wireless remote control to lock the doors will set the alarm system.
■Wireless remote control battery depletion
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. ( P. 2 8 5 )
■Security feature
If a door is not opened within approx imately 60 seconds after the vehicle is
unlocked, the anti-theft system automatically locks the vehicle again.

57
1-6. Theft deterrent system
1
Before driving
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
following.
●Nobody is in the vehicle.
●The windows are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
●When the alarm is operating, the door s are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
●A person inside the vehicle opens a door,
rear hatch or hood.
●The battery is disconnected.

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1-6. Theft deterrent system
■The alarm cannot be set when
In the following situations, the alarm cannot be set. Be careful if the vehicle will not
be used for an extended period of time.
●When a battery terminal is disconnected
●When the “D/C CUT” fuse is removed
■Canceling and automatic re-enabling of the tilt sensor
●The alarm will still be set even when the tilt sensor is canceled.
●After the tilt sensor is canceled, turning the ignition switch to the “ON” position
or unlocking the doors using the wireless remote control or key will re-enable
the tilt sensor.
●When the alarm system is set again, the intrusion sensor and tilt sensor will be
set.
■Tilt sensor detection considerations
The sensor may trigger the alarm in the fo llowing situations. Cancel the tilt sensor
as necessary.
●The vehicle is transported by a ferry, a flatbed track, train, etc.
●The vehicle is parked in a parking garage.
●Any of the tires loses air pressure.
●The vehicle is jacked up.
●An earthquake occurs or the road caves in.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.

100
2-1. Driving procedures
■If the engine does not start
●Repeat the procedure again. If the engine does not start after a few tries, the
“ENGINE START” switch may be malfunctioning. Have the vehicle inspected
by your Lexus dealer.
●Check to make sure that the brake pedal is firmly depressed and that “N” is dis-
played in the gear indicator. (If the brake pedal is not depressed or “N” is not
displayed, the engine will not start.)
●The engine immobilizer system may not have been deactivated. ( P. 5 3 )
●In order to protect the engine, the engine may not start when the engine coolant
temperature or the engine oil temperature is below -13 F (-25C). In that case,
a buzzer will sound and “Temp low Engine cannot be started” will be shown on
the meter. ( P. 3 2 7 )
■When the steering lock cannot be released
■Key reminder function
A buzzer sounds if the driver’s door is opened while the ignition switch is in the
“LOCK” or “ACC” position to remind you to remove the key.
■After reconnecting the battery
If the gear indicator is not displayed when an attempt is made to start the engine,
the engine is not yet ready to start. Depr ess the brake pedal for several seconds and
wait for the gear indicator to appear.
When starting the engine, the ignition switch
may seem stuck in the “LOCK” position. To
free it, turn the key while turning the steering
wheel slightly left and right.

159
2-3. Operating the lights and windshield wipers
2
When driving
■Daytime running light system (Canada only)
To make your vehicle more visible to other drivers, the headlights and tail lights turn
on automatically whenever the engine is started and the parking brake is released.
■Automatic light off system
●When the headlights come on: The headlights and tail lights turn off 30 seconds
after a door is opened and closed if the ignition switch is turned to the “ACC” or
“LOCK” position. (The light turns off immediately if on the key is pressed
after both side doors are locked.)
●When only the tail lights come on: The tail lights turn off automatically if the igni-
tion switch is turned to the “ACC” or “LOCK” position and the driver’s door is
opened.
To turn the lights on again, turn the ignition switch to the “ON” position, or turn the
light switch to once and then back to or
.
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

When trouble arises5
301
5-1. Essential informationEmergency flashers.............. 302
If your vehicle needs to be towed................................ 303
If you think something is wrong ..................................... 308
Fuel pump shut off system .................................... 309
Event data recorder ............... 310 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... .................................. 312
If a warning message is displayed................................ 322
If you have a flat tire............... 332
If the engine will not start .... 343
If you lose your keys/ wireless remote
control transmitter ............. 344
If the parking brake cannot be released ............. 345
If the vehicle battery is discharged ............................ 348
If your vehicle overheats ...... 351
If the vehicle becomes stuck........................................ 354
If your vehicle has to be stopped in an
emergency ............................ 355

405
Alphabetical index
Electric power steering ....................... 166
Emergency, in case ofIf the active rear wing will not operate ....................................... 325
If the engine will not start ............... 343
If the fuel filler door cannot be opened ............................................ 50
If the parking brake cannot be released ....................................... 345
If the rear hatch cannot be opened ....................................................29
If the vehicle has a discharged battery.................................................. 348
If the warning buzzer sounds........ 312
If the warning light turns on ............ 312
If the warning message is displayed .............................................322
If you have a flat tire ........................ 332
If you lose your keys ........................ 344
If you lose your wireless remote control ................................ 344
If you think something is wrong...................................................308
If your vehicle becomes stuck .... 354
If your vehicle has to be stopped in an emergency ......... 355
If your vehicle needs to be towed ................................................... 303
If your vehicle overheats.................. 351 Emergency flashers
Switch.......................................................302
Engine “ENGINE START” switch ...............98
Compartment......................................256
Engine coolant ................................... 260
Engine coolant temperature gauge....................................................... 116
Engine oil pressure gauge ............... 116
Engine oil temperature gauge ....... 116
Engine speed restrictions .................90
Engine starting restrictions............... 181
Hood ....................................................... 250
How to start the engine .....................98
Identification number ...................... 358
Idling with five cylinders.....................90
If the engine will not start................343
Ignition switch .........................................98
Overheating .......................................... 351
Tachometer ......................................... 260
Variable red zone................................. 119
Warning light ........................................ 314
Warning message ................. 324, 327
Engine coolant Capacity .................................................362
Checking .............................................. 260
Coolant type ........................................362
Engine coolant temperature gauge....................................................... 116
Preparing and checking before winter .....................................180E
*2: Refer to “Inside the LFA”.