Re: 2002 malibu transmission
The red cap on the top of the tranny on the driver's side is indeed where you are supposed to add fluid to. (I used to work at Jiffy Lube) There is a plug on the underside that is facing the passenger's side of the vehicle that will take a 10mm wrench to check the level. To check the level make sure the car is in park with the engine running and remove the plug. If fluid comes out then it's full if not, add fluid until it comes out the hole and put the plug back in.
2005 Chevy Malibu LS "Galaxy Silver Metallic"
Born: 3/15/2005 Fairfax, KS
Died: 12/27/2012 Everett, WA RIP