Where to find transmision dip stick

There is no dipstick, you can access the transaxle by lifting the car up. It is located on the drivers side right by the wheel. Remove the bolt at the top of the pan, if the fluid dribbles out there is enough, if not you need to fill it.

1999 Pontiac Grand Am 3.4 V6 4 speed auto does not have a dip stick. According to the manual if the transmission is leaking fluid or shifting incorrectly take it to the dealer. Other than that the service interval for filter and fluid change is 50,000 miles. I hope this answers your question.

I assume you do not mean stick shift transmission, because they never use a dipstick, but instead require opening a plug on the side of the tranny.

But if you have an automatic, the 99 has a dipstick near the firewall.
Check with engine running.
Lately they have been leaving dipsticks off of automatics, but that is a horrible idea and it won't last.