2012 Lexus LFA battery

5
When trouble arises
329
5-2. Steps to take in an emergency
Indicates that the washer
fluid level is low.Add washer fluid.
(
 P. 2 6 4 )
Indicates that engine oil
level is low. Check the level of engine
oil (
P. 132), and add if
necessary ( P. 2 5 7 ) .
Indicates that the engine
oil needs to be changed. Have the engine oil
changed at your Lexus
dealer. (Also have the oil
maintenance function
reset.)
Indicates that the engine
coolant temperature or
engine oil temperature is
below -13 F (-25 C). Start the engine when the
engine coolant or engine
oil temperature reaches
-1 1
F (-24 C) or higher.
Indicates that the battery
voltage is low. Start the engine.
Indicates that the spark
plugs are dirty or carbon
fouled. Drive the vehicle at 2400
rpm or higher for a total
duration of several min-
utes.
MessageDetailsCorrection procedure

5
When trouble arises
331
5-2. Steps to take in an emergency
■To prevent the clutch from overheating
●Do not use the accelerator pedal to hold the vehicle on uphill inclines in an
attempt to prevent the vehicle from moving backward.
●On uphill inclines, observe the following whenever possible:
• Maintain a safe distance from the vehicle ahead and avoid frequent starts.
• Avoid using AUTO driving mode on uphill inclines. This will help to avoidunnecessary gear changes.
■If “Battery low Electric al equipment operation is limited” is displayed
The battery voltage is low. The operation of the air conditioning system, transmis-
sion pump and other power-consuming components may be temporarily limited
until the battery is recharged.

5
When trouble arises
343
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are being
followed (
P. 98), consider each of the following points.
■ The engine will not start even when the starter motor operates nor-
mally.
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting pro-
cedures. ( P. 9 8 )
● There may be a malfunction in the engine immobilizer system.
( P. 5 3 )
■ The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
One of the following may be the cause of the problem.
● The battery may be discharged. ( P. 3 4 8 )
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 3 4 8 )
Contact your Lexus dealer if the prob lem cannot be repaired, or if repair
procedures are unknown.

5
When trouble arises
345
5-2. Steps to take in an emergency
If the parking brake cannot be released
In the event that the battery is discharged or switch operation does not
release the parking brake, the parking brake can be released manually using
the procedure below. This procedure should be performed only if necessary,
such as in an emergency.
If the switch cannot be operated even when the battery is normal, the parking
brake system may be malfunctioning. Have the vehicle inspected by your
Lexus dealer immediately.
■ Before releasing the parking brake manually
●Select 1st gear or Reverse.
● Turn the ignition switch to the “LOCK” position.
● Check that the parking brake indicator is off.
● Chock the tires.
Releasing the parking brake manually
Open the rear hatch and remove
the cover.
If the rear hatch cannot be opened
with the rear hatch opener switch,
use the release cable. (P. 2 9 )
Release the belt and take out the
tool bag.
Take the parking brake release tool
and the screwdriver handle out of
the tool bag.
STEP1
STEP2

348
5-2. Steps to take in an emergency
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can call your Lexus dealer, or qualified repair shop.
If you have a set of ju mper (or booster) cables and a second vehicle with a
12-volt battery, you can jump start yo ur Lexus following the steps below.
Open the rear hatch and remove
the battery cover.
If the rear hatch cannot be opened
with the rear hatch opener switch,
use the release cable. ( P. 2 9 )
After removing the positive (+)
battery terminal cover and check-
ing that the negative (-) terminal is
securely fixed in place, connect the
jumper cables in the following
order:
Positive (+) battery terminal on
your vehicle
Positive (+) battery terminal on
the second vehicle
Negative (-) battery terminal on
the second vehicle
Negative (-) battery terminal on
your vehicle
STEP1
STEP2

5
When trouble arises
349
5-2. Steps to take in an emergency
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the battery of your vehicle.
Maintain the engine speed of th e second vehicle and start the
engine of your vehicle.
Once the vehicle’s engine has started, remove the jumper cables
in the exact reverse order from which they were connected.
After disconnecting the jumper cables, make sure that the negative (-)
battery terminal on your vehicle is fixed securely.
Once the engine starts, have the vehicle inspected at your Lexus dealer
as soon as possible.
■Starting the engine when the battery is discharged
●If the gear indicator is not displayed when an attempt is made to start the
engine, the engine is not yet ready to start. Depress the brake pedal for several
seconds and wait for the ge ar indicator to appear.
●The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
STEP3
STEP4
STEP5

350
5-2. Steps to take in an emergency
CAUTION
■To prevent a vehicle fire
When connecting or disconnecting the jumper cables to or from the battery, make
sure that they are not in contact with any part made of CFRP (Carbon Fiber Rein-
forced Plastics). Failure to do so may cause a fire hazard.
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure each jumper cable is connecte d to the correct terminal and that it is
not unintentionally in contact with any part other than the intended terminal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when han-
dling the battery:
●When working with the battery, always we ar safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●Do not allow children near the battery.

363
6-1. Specifications
6
Vehicle specifications
Electrical system
Front counter gear
Rear transaxle
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent
of matching quality that satisfies the above specifications. Please contact your
Lexus dealer for further details.
Clutch & Shift Hydraulic System Fluid
Battery
Open voltage* at
68 F (20 C): 12.6
12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(*: Voltage checked 20 minutes after the
engine and all the lights are turned off)
Charging rates 5 A max.
Engine oil
Oil brand“Mobil 1 5W-50” (also used for the engine)
Oil capacity5.6 qt. (5.3 L, 4.7 Imp. qt.)
Oil type and viscosity“Toyota Genuine Differential Gear Oil LT
75W-85 GL-5” or equivalent
Fluid type“Toyota Genuine Brake Fluid 2500H”
(change not needed)