Lexus 2013 GS 350 Owner's Manual page 149

When stopping the engine with the shift lever in a position other
than P
If the engine is stopped with the shift lever in a position other than P, the
engine switch will not be turned off but instead be turned to ACCES-
SORY mode. Perform the following procedure to turn the switch off:
Check that the parking brake is set.
1
Shift the shift lever to P.
2
Check that "POWER ON" and "Turn Power OFF" are displayed alter-
3
nately on the multi-information display and then press the engine switch
once.
Check that "POWER ON" and "Turn Power OFF" on the multi-infor-
4
mation display are off.
GS350_U (OM30C34U)
4-2. Driving procedures
I n f o r ma t i o n P r o v i d e d b y :
173
4