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418
8-2. Steps to take in an emergency
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning light Warning light/Details/Actions
Hydrogen leak warning light (warning buzzer)
When a hydrogen gas leak is detected, a buzzer sounds,
a light comes on, and a warning message is displayed on
the multi-information display.
P. 9 3
(U.S.A.)
(Red)
(Canada)
Brake system warning light (warning buzzer)*
1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
High coolant temperature warning light
Indicates that the coolant temperature is abnormal
P. 457
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(Yellow)
Brake system warning light
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
Have the vehicle inspected by your Toyota dealer
immediately.
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