206 Automatic gear problem (shift back)

I have a 2004 model automatic gear 1.4 peugeot 206 x-line vehicle. I have had no problems with the automatic transmission since I bought it. I just felt a weakness in the car on slopes but somehow I got over it. but today I had to climb a very steep hill. At the end of the slope, with the dirt on the road, the car was very hard and it was clogged, I started to skid, and I did not force it and even though it was at "D", the gear started to go backwards. I immediately took the brake, bought it in "R" and stopped it with the brake. I got back downhill and went back to where I needed to go. There was no problem, but on the turn I realized that the vehicle is flowing backwards on slopes even though it is at "D".

Hello there,
I also have 206 automatic brothers .. I guess all of them are slightly shifting on steep slopes.

It is normal to escape on steep slopes. Do not worry about your head ..

I guess it is so I guess everything is sinking now it sounds like now bzzt I am anxious I can not show a long time I can not show an opportunity like March but I am uneasy.

are you sure it's fully automatic, i have fever tiptronic; it misses a hundred percent very steep slope, does not miss on standard slopes .. this is not a problem normal thing .. use handbrake as it lifts manual vehicle on very steep slopes; Otherwise, the transmission will be damaged.