reversing problem--transmission or brakes?

It's neither the tranny or the brakes, it could have been the throttle got stuck because the car mat slid up or you have a bad mount and motor shifts when put in reverse causing the throttle cable to get pulled. If it was a one time incident I would check the mat, it's quite common.

A filter change isn't going to help this at all. Why would you think so? You're lost reverse gear, probably because the reverse clutch went out. Have you even checked the transmission fluid level. The shop didn't want to touch this transmission to change the filter like you asked for because they knew it wouldn't help, and they knew you would have started blaming them for your problem So they made up a story because if they can't work on a transverse engine/transmission, they would be excluding a large number of vehicles on the road. You need to stop diagnosing what you think is the problem and take the car to a reliable transmission shop, and not one of the big chain shops.

Sounds like a foot to me. You may have had your foot on the brake and the gas pedal too. The harder you'd push on the brake the harder you'd pushed on the gas. You didn't want to let up on the brake so you didn't let up on the gas either. I've seen it happen before and it is scary ! !

Next time turn off the engine and it will stop.

You can rule out the transmission. If it were the transmission, you would have trouble getting the car to move, not to stop. So, you can scratch that off your list. Most likely, it's not your brakes either... It's probably something to do with the engine!!! Best wishes!

Dear, if your brakes work going forward then they work going backward too. I would have to take that thing to a transmission shop before I backed out of a parking spot and rammed into a $50K Mercedes.

i own a repair shop and it kind of sounds like the brakes might not be holding to well on it,its possible the back ones are worn out,and this will cause whats happening to it,if i was you id take it in and just have them checked,most of the time they wont charge you for an inspection,i don't charge for them,and neither do most other shops,but i think you need to find out what this is,and a good inspection might tell you this,good luck with it hope this helps.

Believe it or not, this sounds suspiciously like a broken motor mount. I've seen several that ran all over a parking lot, damaging other cars, because of just that...I would suggest you have all of them checked, and yes it is scary when you don't know it's coming.

well dear, it sounds more like the gas pedal stuck with you.if it was the tranny,then you wouldnt be going anywhere,forwards or backwards.if it was going that fast,then it would be hard for the brakes to stop you,because the tranny would be pulling you.

ok form the ur discription sound like u might have a computer problem cuz ur motors reving yet u can still back up