because there is a short circut occurring in the turn signal switch. This is not a minor problem, as it could lead to the car burning up, or the wiring harness being ruined. Take the care to an automotive electrical specialist immediately, and cough up what they will charge to fix it. No matter how much it is, it will be far less than what ignoring the problem will cost you.
Under the dashboard, near the steering column. It is plugged into a plastic module. Look way up. Grab a flashlight. ;-)
The steering column in a Buick Century covers the steering shaft and houses the turn signal switch. Some Century cars have a tilt column as well.
inside the steering column - turn signal lever and hazard flasher button stick out of steering column cover
in the steering column
On the steering column.
The turn signal flasher is next to the fuse panel at the lower left of the steering column. The hazard flasher is located to the right of the steering column.
bad spring in steering colum
Turn signal flasher is under the dashboard beside the steering column. Flasher unit for the emergency flashers is on the other side of the steering column.
Inside your steering column - the turn signal lever and hazard light button stick out of the steering column
On top of the steering column, below the steering wheel.
bad signal switch on steering column..
The turn signal switch is directly under the steering wheel. the flasher...(the device that makes the lights blink and is activated by the turn signal switch) is usually under the steering column between the column and pannel