Toyota Camry harsh transmission shifting during acceleration from a stop, recommended reprogramming on Toyota Camry

Some Toyota Camry owners report experiencing harsh transmission shifting during acceleration from a stop, which can lead to concerns such as shift flare, harsh downshifts, or jerky feelings. To improve shifting performance and smoothness, reprogramming the Engine Control Module (ECM) and Transaxle Control Module (TCM) is often recommended. Additionally, some owners find that monitoring the transmission shift status using Techstream and ensuring proper gear shifting during deceleration attempts can aid in diagnosing the issue. It is important for owners to address these transmission problems promptly to prevent potential damage over time and maintain the vehicle's overall performance.