Lexus 2014 LX570 Owner's Manual page 186

2-1. Driving procedures
When driving with the cruise control or radar cruise control activated
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Even when performing the following actions with the intent of enabling engine
braking, engine braking will not activate because cruise control or radar cruise
control will not be canceled.
While driving in "D" position (vehicles with paddle shift switches) or "S" mode,
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downshifting to "5" or "4". (P. 230, 234)
When switching the driving mode to power mode while driving in "D" position.
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(P. 181)
Second start mode automatic deactivation
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Second start mode is automatically deactivated if the engine is turned off after driv-
ing in second start mode.
If the shift lever cannot be shifted from "P"
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P. 865
If the "S" indicator does not come on even after shifting the shift lever to "S"
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This may indicate a malfunction in the automatic transmission system. Have the
vehicle inspected by your Lexus dealer immediately.
(In this situation, the vehicle will operate as if the shift lever is in "D".)
AI-SHIFT
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The AI-SHIFT automatically shifts the gear to the suitable position according to the
driver performance and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in the "D" position.
(Shifting the shift lever to the "S" position cancels the function.)
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