If Your Vehicle Overheats - Lexus ES-300 2001 Manual

IN CASE OF AN EMERGENCY
(black) cable to a solid, stationary, unpainted
metallic point (e.g. cylinder head) away from the
battery. Do not connect it to or near any part that
moves when the engine is cranked.
CAUTION
When making the connections, to avoid serious injury,
do not lean over the battery or accidentally let the
jumper cables or clamps touch anything except the
correct battery terminals or the ground.
5. Start your engine in the normal way. After starting,
run it at about 2000 rpm for several minutes with the
accelerator pedal lightly depressed.
6. Carefully disconnect the cables in the exact reverse
order: the negative cable and then the positive cable.
7. Carefully dispose of the battery cover cloths which
may now contain sulfuric acid.
8. If removed, replace all the battery vent plugs.
If the cause of your battery discharging is not apparent
(for example, lights left on), you should have it checked.
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IF YOUR VEHICLE OVERHEATS

If your engine coolant temperature gauge indicates
overheating, if you experience a loss of power, or if
you hear a loud knocking or pinging noise, the
engine has probably overheated.