Last week I got the red airbag light twice, both under the same circumstances. Below freezing temps, drove to class with no warnings, 6 hours later I drive home and it comes on for the first time. 2 hours later I go out and the light has disappeared.
The same thing happened the next day, no airbag light in the morning but it came on that afternoon. Hasn't reared it's head since! Mind you this isn't the passenger airbag light, it's the red "AIRBAG" warning light in the gauges.
Sent from a box in my pocket.