Approx 2 gallons.
You should bring it in for service to a trained mechanic. The airbag light comes on when the computer has detected a malfunction.
Have a look at this link: http://www.wikihow.com/Replace-a-Tail-Light-on-a-Dodge-Grand-Caravan
after the 96 model year dodge quit using them
Where is the brake light fuse found on a 1996 dodge grandcaravan
light duty 1500 lbs or so
The only proper way is with a scan tool.
Transmission, maybe. Check engine light
The light will reset itself when the cause of the code has been repaired.
The antilock system has detected a malfunction.
The map light on a 2004 Dodge Grand Caravan SXT is changed gently prying the edge of the cover to reveal the bulb. The bulb can then be popped out and a new bulb installed.
go to autozone to ask to check your codes
Check engine light, see related question below.