Rep Power: 0

Hi all
yesterday after changing my battery all the 3 engine eps transmission lights turned on
at first I thought its an electrical issue but then I experienced gearbox problems light heavy shots , lost speed meter , gear changing failure and finally roughness of steering wheel
i have no idea exactly what’s the problem
mechanic says i have to change the whole gerabox

 
Rep Power: 368

what codes?

 
Rep Power: 127

Make sure your battery terminals are clean and tight. Try disconnecting and reconnecting. It’s highly unlikely that you need a new transmission.

 
Rep Power: 223

I'm guessing the terminals aren't tight enough

 
Rep Power: 0

Thanks all
i will check it
but i have serious problem with transmission like heavy shots when i change gear to D, vehicle jumps when i turn it to D
the D light blinks all the time
and the steering is not smooth like before
car is lazy when i push the paddle
the error goes for Shafts and speed sensor
it also says the comparison between engine speed and transmission speed is not proper

 
Rep Power: 0

I tried to remove the errors with system check
it goes away and appears again after some hours

 
Rep Power: 368

looks like you might have a trip to the dealer soon
you did not check what codes you have?

 
Rep Power: 225

Fix the electrical issue before worrying about the transmission.