Mazda 3 manual mode only downshifts, upshift issue persists with hard shifting needed on Mazda 3

Some Mazda 3 owners report experiencing issues with upshifting in manual mode, where the vehicle only downshifts and requires hard shifting. These owners note that the transmission may fail to shift up when the shift lever is moved to the manual gate, even though downshifting functions correctly. Additionally, some drivers find that rolling into power earlier during turns can help prevent aggressive gear downshifting, while others suggest using manual mode to build power in 3rd gear. Furthermore, downshifting to "engine brake" can aid in slowing the car, particularly when merging onto or off a freeway. It is also reported that high automatic transaxle fluid (ATF) temperatures can lead to the transaxle reverting to automatic shift mode, which cancels manual shift mode and disables gear position indication. Owners experiencing persistent upshifting issues are advised to consider these factors and seek professional assistance if necessary.