Horn Button.

There are spring loaded contacts on either side of the wheel, the buttons break, etc. Not very expensive or hard to replace but you have to be very careful working with the airbag in the steering wheel, follow the factory service manual instructions to the letter to prevent damage and/or injury. And of course you'll need a steering wheel puller,etc.

Thank you for this helpful information.

94 to 96 lumina mini vans have the same buttons, i junk yard shopped and got two for a dollar. good hunting!

Thank you for this helpful info.