Toyota Lexusc Owner's Handbook Manual page 571

IN CASE OF AN EMERGENCY
(c) Jump starting
Before jump starting, remove the engine compartment
cover. (See "Removing the engine compartment cover"
on page 620.)
To avoid serious personal injury and damage to your
vehicle which might result from battery explosion, acid
burns, electrical burns,
components, these instructions must be followed
precisely.
If you are unsure about how to follow this procedure, we
strongly recommend that you seek help from your Lexus
dealer, Roadside Assistance or Customer Service Assistance.
(See "Foreword".)
CAUTION
D Batteries contain sulfuric acid which is poisonous
and corrosive. Wear protective safety glasses when
jump starting, and avoid spilling acid on your skin,
clothing, or vehicle.
NOTICE
The battery used for boosting must be 12 V. Do not jump
start unless you are sure that the booster battery is
correct.
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or damaged electronic
D If you should accidentally get acid on yourself or in
your eyes, remove any contaminated clothing and
flush the affected area with water immediately. Then
get immediate medical attention.
continue to apply water with a sponge or cloth while
en route to the medical office.
D The gas normally produced by a battery will explode
if a flame or spark is brought near.
standardized jumper cables and do not smoke or
light a match while jump starting.
If possible,
Use only