Lexus rx350 2016 Owner's Manual page 666

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8-2. Steps to take in an emergency
Connect the clamp at the other end of the negative cable to a solid, station-
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ary, unpainted metallic point away from the battery and any moving parts,
as shown in the illustration.
Start the engine of the second vehicle. Increase the engine speed slightly and
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maintain at that level for approximately 5 minutes to recharge the battery of
your vehicle.
Open and close any of the doors of your vehicle with the engine switch off.
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Maintain the engine speed of the second vehicle and start the engine of your
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vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle' s engine has started, remove the jumper cables in the exact
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reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at your Lexus dealer as soon
as possible.
Starting the engine when the battery is discharged
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The engine cannot be started by push-starting.
To prevent battery discharge
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Turn off the headlights and the audio system while the engine is off.
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Turn off any unnecessary electrical components when the vehicle is running at a low
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speed for an extended period, such as in heavy traffic.
Charging the battery
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The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharge and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
When the battery is removed or discharged
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In some cases, it may not be possible to unlock the doors using the smart access system
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with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
The engine may not start on the first attempt after the battery has recharged but will
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start normally after the second attempt. This is not a malfunction.
The engine switch mode is memorized by the vehicle. When the battery is recon-
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nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.
The power back door must be initialized. (P. 138)
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