Toyota Land Cruiser 2016 Owner's Manual page 103

If the indicator or buzzer comes on...
(h)
(i)
(j)
(k)
(indicator and buzzer)
(l)
(m)
(n)
94
Take vehicle to Toyota dealer. If brake system warning light is also on, immediately
stop the vehicle in a safe place and contact Toyota dealer.
Close all side doors and back door.
Take vehicle to Toyota dealer immediately.
When the warning light flashes: Drain water.
When the warning light comes on: Take vehicle to Toyota dealer.
Perform regeneration.
Take vehicle to Toyota dealer.
Take vehicle to Toyota dealer immediately.
Do this.