The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Toyota dealer.

If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately.On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK BATTERY CONDITION
NOTICE:
If the battery is weak or if the engine is difficult to start, perform the following
procedure.
(a) Check the battery for damage and deformation. If severe damage, deformation
or leaka ...
Engine Stall History (P1603,P1605)
DESCRIPTION
P1603
After starting the engine, this DTC is stored when the engine stops without the
ignition switch being operated.
Using the Techstream, the conditions present when the DTC was stored can be confirmed
by referring to the freeze frame data ...
Transmitter Battery(w/ Smart Key System)
Replacement
REPLACEMENT
PROCEDURE
1. REMOVE TRANSMITTER BATTERY
NOTICE:
Take extra care when handling these precision electronic components.
(a) Push the release hook knob and extract the mechanical key.
...