Toyota AURION Owner's Manual page 145

IGNITION SWITCH, TRANSMISSION AND PARKING BRAKE
If any of the following conditions then occur,
there is some trouble in the cruise control
system.
The indicator light does not come on.
D
The indicator light flashes again.
D
The indicator light goes out after it comes
D
on.
If this is the case, contact your Toyota dealer
and have your vehicle inspected.
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