Have the vehicle inspected by your Lexus dealer immediately.
Lexus GX / Lexus GX Owners Manual / When trouble arises / Steps to take in an emergency / If a warning message is displayed / Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a warning message is shown on the multi-informa- tion display. Failure to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
See also:
Operation and Maintenance
GENERAL INFORMATION
You are responsible for ensuring that your Lexus is operated and maintained according
to the instructions in the Owner’s Manual and the “Maintenance Information” section
...
Connecting trailer lights
Use the wire harness stored in the rear end under the vehicle body.
Please consult your dealer when installing trailer lights, as incorrect installation
may cause damage to the vehicle’s lights ...