Lexus RZ450E 2023 Owner's Manual page 488

488
9-2. If a warning is indicated on the meter
"Parking Brake Unavailable"
Cause
Operate the parking brake switch. If
the message does not disappear
after operating the switch several
times, the system may be malfunc-
tioning.
"Brake Hold Malfunction Press Brake to Deactivate Visit Your Dealer"
Cause
The system may be malfunctioning.
Remedy
Have the vehicle checked by your Lexus dealer.
Remedy
Have the vehicle checked by your Lexus dealer
immediately.