TCM software upgrade to improve shift quality on Suzuki Verona

Problem Description and Possible Solution

Poor shift quality of the automatic transmission may be improved by upgrading the software in the transmission control module (TCM).

Problem Data
RepairPal Verified
Average mileage: 109,066 (67,320–180,000)
2 model years affected: 2004, 2006
9 people reported this problem
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That transmission don work good sometimes