Lexus LS460 2011 Owner's Manual page 775

5-2. Steps to take in an emergency
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown
in the illustration.
STEP 3
Start the engine of the second vehicle. Increase the
engine speed slightly and maintain that level for approxi-
mately 5 minutes to recharge the battery of your vehicle.
STEP 4
Open and close any of the doors with the "ENGINE
START STOP" switch OFF.
STEP 5
Maintain the engine speed of the second vehicle and turn
the "ENGINE START STOP" switch to IGNITION ON
mode, then start the engine.
STEP 6
Once the engine has started, remove the jumper cables in
the exact reverse order in which they were connected.
Once the engine starts, have the vehicle inspected at any autho-
rized Lexus dealer or repairer, or another duly qualified and
equipped professional, as soon as possible.
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