Lexus RC 300 2019, Owner'S Manual

Page: 230 / 475

228 4-5. Using the driving support systems
• is off.
• The driver’s seat belt is fastened.
• The engine is adequately warmed up.
• The driver’s door is closed.
• The accelerator pedal is not being
depressed.
• The outside temperature is -5°C (23°F)
or higher.
• The hood is closed.
●
In the following situations the engine may
not be stopped by the Stop & Start sys-
tem. This is not a malfunction of the Stop
& Start system.
• The air conditioning system is being used
when the ambient temperature is high or
low.
• The battery is undergoing a periodic
recharge.
• The battery is not sufficiently charged,
such as if the vehicle has been parked for
a long time and the battery charge has
decreased, the electric load is large, the
battery fluid temperature is excessively
low or the battery has deteriorated.
• The brake booster vacuum is low.
• The vehicle is stopped on a steep incline.
• The steering wheel is being operated.
• Due to traffic or other circumstances the
vehicle is stopped repeatedly.
• The vehicle is being driven in a high alti-
tude area.
• Engine coolant temperature or transmis-
sion fluid temperature is extremely low or
high.
• The battery fluid temperature is
extremely low or high.
• For a while after the battery terminals
have been disconnected and recon-
nected.
• For a while after the battery has been
replaced.
●
In the following situations, the engine will
restart automatically if the engine is
stopped by the Stop & Start system. (To
enable stopping of the engine by the Stop
& Start system, drive the vehicle.)
• The air conditioning system is turned on.
• Pollen removal mode is turned on.
•
is turned on.
• is turned on.
• The steering wheel is operated.
• The shift lever is shifted to M, N or R from
D.
• The shift lever is shifted from P.
• Sport mode or snow mode is selected as
the driving mode.
• The driver’s seat belt is unfastened.
• The driver’s door is opened.
• The accelerator pedal is depressed.
• The Stop & Start cancel switch is pressed.
• The vehicle starts to roll on an incline.
●
In the following situations, the engine may
restart automatically if the engine is
stopped by the Stop & Start system. (To
enable stopping of the engine by the Stop
& Start system, drive the vehicle.)
• The brake pedal is pumped or strongly
depressed.
• The air conditioning system is being used.
• The battery is not sufficiently charged.
■
Hood
●
If the hood is opened while the engine is
stopped by the Stop & Start system with
the shift lever in D, the engine will stall and
will not be able to be restarted by the
automatic engine start function. In this
case, restart the engine using the normal
engine starting procedure. (

P.166)
●
If the hood is opened while the engine is
stopped by the Stop & Start system with
the shift lever in P, the engine will be
restarted automatically.
●
Even if the hood is closed after the engine
is started with the hood open, the Stop &
Start system will not operate. Close the
hood, turn the engine switch off, wait 30
seconds or more, and then start the
engine.
■
When to use the Stop & Start system
●
When stopping the vehicle for a longer
period of time, turn the engine switch off
and stop the engine completely.
●
When the system does not operate, is
canceled, or is malfunctioning, warning
messages and a warning buzzer are used
to inform the driver. (

P.230)
●
If the engine switch is pressed when the
engine is stopped by the Stop & Start sys-
tem, the engine will stall and will not be
able to be restarted by the automatic
RC350-RC300_OM_General_OM24884E