Pontiac 1999 Firebird - Manual (Page 271)

yellow blue
6-23
1. The red transmission dipstick is located near the
back of the engine. Flip the handle up and then
pull out the dipstick and wipe it with a clean rag or
paper towel.
2. Push it back in all the way, wait three seconds and
then pull it back out again.
3800 V6 Transmission Dipstick
5.7L V8 Transmission Dipstick