[Havingfun]

I have a 2010 Malibu with 220,000 miles. Trans just started slipping on acceleration but is fine in reverse and once you get up to highway speeds.
Checking fluid tomorrow as there is no dipstick on this trans and it’s cold and dark now
Any ideas ?

 

[cp-the-nerd]

You can go to a dealership and get a transmission service, whether they offer drain/fill or a flush via cooler lines. With over 200,000 miles, it may or may not help.