lock lexus LFA 2012 Technical Information / LEXUS 2012 LFA (OM77006U) Repair Manual

258
4-3. Do-it-yourself maintenance
Add oil based on the oil level shown on the meter.
Do not add more than 0.5 qt. (0.5 L, 0.4 Imp. qt.) at a time regardless of
the oil level reading.
To check the oil level again, install the oil filler cap by turning it
clockwise.
Check the oil level using the “Oil Level” display and repeat the
above procedure if more oil is required.
Even if the measurement result shows that the oil is below the maximum
level, be careful not to add more oil than necessary.
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
●The amount of engine oil consumed depe nds on the oil viscosity, the quality of
the oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds and fre-
quent acceleration and deceleration.
●A new engine consumes more oil.
●When judging the amount of oil consumpt ion, keep in mind that the oil may
have become diluted, making it difficult to judge the true level accurately.
●Oil consumption: Max. 1.1 qt./600 miles (0.9 Imp. qt./600 miles, 1.0 L/1000
km)
●If your vehicle consumes more than 1.1 qt. (1.0 L, 0.9 Imp. qt.) every 600 miles
(1000 km), contact your Lexus dealer.
■After the engine oil has been changed
The “Oil Maintenance” display on the mete r needs resetting. Have the display reset
at your Lexus dealer. ( P. 1 3 2 )
STEP4
STEP5
STEP6
STEP7

266
4-3. Do-it-yourself maintenance
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the charger is off when connecting and discon-
necting the charger cables to the battery.
■If the vehicle is not used for an extended period of time
Removing the specified fuse helps to supp ress parasitic current (the draw on the
battery when the vehicle is shut off).
Turn the ignition switch to the “LOCK” position.
Open the fuse box lid in the engine compartment. ( P. 2 8 7 )
Before commencing driving again, make sure to return the fuse to its original posi-
tion.
STEP1
STEP2
While referring to “Fuse layout and amper-
age ratings” ( P. 290) or the back of the
fuse box lid for the location, use the pull-out
tool to remove the “D/C CUT” fuse
and put it into .
Make sure that the fuse is firmly inserted.STEP3

267
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Removing the negative (-) battery terminalTurn the ignition switch to the “LOC K” position and check that the gear
indicator is not displayed. ( P. 2 6 9 )
Open the rear hatch and remove the cover.
●When reconnecting the terminal, make sure that the lever is lowered into the
lock position.
●Do not disconnect the term inal while the power seats, power windows or other
electrical devices are being operated.
●When the battery terminal is disconnect ed, the “Lap Timer” data and clock in
the meter will be reset.
STEP1
STEP2
Lift the lever.
Disconnect the terminal.STEP3
Lock position
STEP4

268
4-3. Do-it-yourself maintenance
CAUTION
■When connecting the battery terminal
Lower the lever into the locked position and ensure that the terminal is securely
fixed in place.
If the terminal is not securely fixed in place, it may come off while the vehicle is
being driven. This may cause the engine and electronic components to stop func-
tioning, resulting in an accident.
■Chemicals in the battery
A battery contains poisonous and corrosive sulfuric acid and may produce hydro-
gen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near the battery:
●Do not cause sparks by touching the battery terminals with tools.
●Do not smoke or light a match near the battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the battery.
●Keep children away from the battery.
■Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a garage or
closed room where there is insufficient ventilation.
■How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if charged at a
quicker rate.

269
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immediate medi-
cal attention. If possible, continue to apply water with a sponge or cloth while
traveling to the nearest medical facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical atten-
tion immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the clothing and
follow the procedure above if necessary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Fo llow with milk of magnesia, beaten raw
egg or vegetable oil. Get emergency medical attention immediately.
■When replacing the battery
Use a battery designed for the LFA. Failure to do so may cause gas (hydrogen) to
enter the passenger compartment, causing a fire or explosion.
For replacement of the battery, contact your Lexus dealer.
NOTICE
■Before disconnecting the battery terminal
Turn the ignition switch to the “LOCK” position and check that the gear indicator
turns off before disconnecting the battery terminal.
If the terminal is disconnected while the gear indicator is still displayed, the ASG
(Automated Sequential Gearbox) computer may be negatively affected, possibly
causing the engine not to start. If the term inal is accidentally disconnected while the
indicator is on, contact your Lexus dealer.
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all accesso-
ries are turned off.

283
4-3. Do-it-yourself maintenance
4
Maintenance and care
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Set the air conditioning system to recirculated air mode.
(P. 190, 197)
The air conditioning filter case cannot be removed with the system in
the outside air mode.
Turn the ignition switch to the “LOCK” position.
Open the glove box. ( P. 210)
Remove the filter cover.
Remove the filter case.
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The “UP” marks shown on the fil-
ter and the filter case should be
pointing up.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6

287
4-3. Do-it-yourself maintenance
4
Maintenance and care
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and replace the fuses as necessary.
Turn the ignition switch to the “LOCK” position.
Open the fuse box lid.
Engine compartment Push the tabs in and lift the lid off.
Driver's side instrument panel Remove the lid.
Passenger's side instrument panel Remove the lid.STEP1
STEP2

296
4-3. Do-it-yourself maintenance
14PMG5 A Electric power control system
15RAD NO.1 10 A Audio system
16MAYDAY 5 A Lexus Enform
17P-S/HTR 15 A Seat heater (passenger's side)
18MIR HTR 15 A Outside rear view mirror defoggers
19P- M PX- B 5 A Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, wireless remote door lock func-
tion, power seat (passenger’s side)
20GAUGE 10 A Gauges and meters
21ECU-IG2 5 AMultiport fuel injection system/
sequential multiport fuel injection sys-
tem, ASG (Automated Sequential
Gearbox), electric power control sys-
tem, passenger occupant classifica-
tion system, CAN gateway ECU,
Lexus Enform
FuseAmpereCircuit

306
5-1. Essential information
Using a flatbed truckUse a flatbed truck suitable for vehicles with low ground clearance. To
prevent body damage, do not tow with a wheel-lift or sling type truck. We
recommend having your Lexus dealer or a commercial towing service
load and unload the vehicle whenever possible.
■ Before loading the vehicle on a flatbed truck
Deactivate the tilt sensor. ( P. 56)
■ After the vehicle is loaded
Select Neutral, apply the parking brake and turn the ignition
switch to the “LOCK” position.
Use wheel chocks for all 4 wheels to prevent the vehicle from rolling.
Secure the vehicle by strapping
the tires to the deck of the tow
truck as shown.
STEP1
STEP2

5
When trouble arises
309
5-1. Essential information
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag
inflates upon collision, the fuel pump shut off system stops the supply of fuel to
the engine.
Follow the procedure below to restart the engine after the system is acti-
vated.
Turn the ignition switch to the “ACC” or “LOCK” position.
Restart the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been damaged
and is in need of repair. Do not restart the engine.
STEP1
STEP2