TCM software upgrade to improve shift quality on Suzuki Verona

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

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Average mileage: 109,066 (67,320–180,000)
2 model years affected: 2004, 2006
8 people reported this problem
1 person shared problem details
2004 Suzuki Verona111,511
That transmission don work good sometimes
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