KIA: PCM UPGRADE-SHIFT HESITATION AND SHIFT DELAY IMPROVEMENT WITH 2.0L AND 4 SPEED A/T (SA020). SOME VEHICLES MAY EXPERIENCE SLIGHT SHIFT HESITATION AND/OR TRANSAXLE SHIFT DELAY. THE TRANSMISSION CONTROL MODULE (TCM) IS AN INTEGRAL PART OF THE PCM AND SHOULD BE NOTED AS THE TCM IS REFERENCED. *PE