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brake light on dash blinking
check/align your PNP switch underneath the battery tray and slightly to the left. It looks sort of like a clamshell.
your park brakes are on
Possibly a security system activation light.
That light indicates the security system is working properly.
Could be alarm...
That's the warning light for your burglar alarm. Locking the car turns it on.
The alarm
It sounds like an anti-theft indicator light. The blinking light means that the security system is active and is functioning properly.
The "W",winter mode button is pressed and you probably put the gear selector lever in position "3". Put selector lever in "D" and press the "E" economy mode button.
That is perfectly normal. It keeps theives away and is a security light.
There may be a grounding problem in the dash light assembly, or the shield that contains the light may be damaged.