▶ When the engine cannot be stopped by the Stop & Start system
Message Details/Actions
"Stop & Start
System Mal-
function Visit
Your Dealer"
The Stop & Start system may be malfunctioning.
Have the vehicle checked by your Lexus dealer.
"Press Brake
More to Acti-
vate"
The brake pedal is not sufficiently depressed.
If the brake pedal is depressed further, the system will operate.
"Non-Dedicat-
ed Battery "
A battery not designed for use with a Stop & Start system may have
been installed.
The Stop & Start system does not operate.
Have the vehicle checked by your Lexus dealer.
"Battery
Charging"
● The battery charge may be low.
Stopping of the engine is temporarily prohibited to prioritize charg-
ing of the battery. After the engine runs for a certain amount of time,
the system will be enabled.
● A refresh charge may be occurring
After a refresh charge for up to an hour completes, the system can
be operated.
● If displayed continuously for a long time (more than an hour)
The battery may be deteriorated. Contact your Lexus dealer for
details.
"Stop & Start
system unavail-
able"
● The Stop & Start system is temporarily disabled.
Allow the engine to run for some time.
● The engine may have been started with the hood open.
Close the hood, turn the engine switch off, wait for 30 seconds or
more, and then start the engine.
"In Prepara-
tion"
● The vehicle is being driven in a high altitude area.
● The brake booster vacuum is low.
When the brake booster vacuum reaches a predetermined level, the
system will be enabled.
2-1. Starting and stopping the engine
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