You should bring it in for service to a trained mechanic. The airbag light comes on when the computer has detected a malfunction.
The airbag can not be reset and must be replaced if it has deployed.
There are two under the front bumper.
The horn switch is part of the airbag cover.
The impact sensors are under the front bumper.
It is located on the floor below dash cupsholders.
The airbag computer has detected an electrical malfunction, this is not a diy situation, please take to a qualified mechanic.
The airbag light stays on when the computer detects a malfunciton and sets a code. You will need to have the system checked with a scan tool.
Steering wheel, passenger side of the dash, optional in front seats/
The computer looks at the info fromt he impact sensors, sends voltage to the ignitor in the airbags, and the airbag "explodes".
You need to have someone with a scan tool check the airbag system for trouble codes. The airbag system is not a place for do it your selfers.
There is no minimum vehicle speed. It goes off of acceleration or deceleration in the crash.
I have a 1999 Dodge Caravan: Just fixed June 12th,The Airbag light was staying on,the the horn went as well as the cruise control, It is called the CLUTHCH CLOCK that was replace on mine: It is located in your steering Wheel,Not a do it yourself job, It is where you airbag is, cost $129.99 for the part in Canada about an hours work if you know what your doing.