I see mention of Resetting Adaptive Parameters and performing a Learn-In Procedure for the 98-99 automatic transmission. The adaptives are reset using a scan tool. Presumably they’ve already done that. There’s a specific relearn procedure involving warming up the transmission to a certain temperature, 10 sets of upshifts at 30 % throttle, and some more steps depending on whether you have a DOHC or SOHC engine (believe it or not!). I concur w/dB above, the shop shouldn’t expect you to perform the relearn procedure. I guess they’ve found that eventually it all gets relearned by normal driving. If they won’t do it for you, ask the shop to give you a copy of the re-learn procedure. It’s something you could do yourself, but has a lot of steps. Verify w/the shop they’ve reset the adaptive parameters first, using their scan tool.