Rear ABS light lit up on Ford Aerostar, will car have any dangerous problems?

I need to use the car tommorow and there isn't any time to fix it. Does having the Rear ABS light on pose any problems? I know it has to do with my rear anti-lock brake system but could it be any major problem?|||If your "rear ABS" light is on, it means you have a code stored in the RABS module. This does NOT render your base brakes inoperative. Even if the RABS valve has failed completely, your base brakes will operate as normal until you have the time to address the issue, untilizing the method I've described to you, in your other posting of a question regarding this concern. By the way, those unfamiliar with this system will NOT be able to retrieve codes with a scan tool on this particular model. The ONLY way to retrieve them is to ground out the black wire with orange stripe as I've described. Not to worry. Hope this helps.|||its hard to say for sure,it may just be an early warning of a problem getting ready to happen,but if the brakes feel ok ,its up to you if you drive it or not,most of the time they warn you way ahead of time,and you could just have a sensor going bad also,but use your on judgment on how it stops to determine if its safe to drive,good luck with it hope this helps.|||Brake fluid might be low. I'm not sure if that's it, but take it to Aamco; they're the ony people so far that I know of that give free vehicle diagnosic and get the job done right guaranteed at a price that's right.|||listen to what my husband says,he owns a repair shop, good luck,hopes this helps and don,t forget to change your air and fuel filters too.|||listen to the dodge man he is right on the mark with his awnser