Check oil, make sure there is sufficient. -How long is it since your last oil change, this can also be caused by old,thin oil.
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
My 2001 Dodge Grand Caravan began doing this and it is because the battery has a low charge, could be due to old battery, or even bad alternator. The quickest and easiest fix is to charge the battery and then wait and see if it happens again after. If it happens then you should have it looked at by a professional
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.
The light will reset itself when the cause of the code has been repaired.
Transmission, maybe. Check engine light
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.
Check engine light, see related question below.
go to autozone to ask to check your codes
try disconnecting battery for 15 minutes