jump cable lexus LFA 2012 Technical Information / LEXUS 2012 LFA OWNERS MANUAL (OM77006U)

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.