When Driving With Cruise Control Or Radar Cruise Control Activated; Downshift Restriction Warning Buzzer (S Mode) - Lexus 2015 RX350 Owner's Manual

When driving with 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 while driving in S mode and downshifting
to 5 or 4 because cruise control or radar cruise control will not be canceled.
(P. 227, 232)
If the shift lever cannot be shifted from P
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P. 791
If S does not come on or D comes 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 transmission will operate in the same as manner as when the
shift lever is in D.)

Downshift restriction warning buzzer (S mode)

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To help ensure safety and driving performance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever or paddle shift switch is operated. (The warning buzzer will
sound twice.)
CAUTION
When driving on slippery road surfaces
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Be careful of downshifting and sudden acceleration, as this could result in the vehi-
cle skidding to the side or spinning.
I n f o r ma t i o n P r o v i d e d b y :
2-1. Driving procedures
2
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