Lexus LS 500h 2019 Owner's Manual page 110

108 1-3. Hybrid system
If a warning light comes on, a warning
■
message is displayed, or the 12-volt bat-
tery is disconnected
The hybrid system may not start. In this
case, try to start the system again. If the
"READY" indicator does not come on, con-
tact your Lexus dealer.
LS500h_OM_General_OM50J66E