Suzuki Grand Vitara
Report: Harsh Downshift on Deceleration
Suzuki Grand Vitara Problem
Model Year Affected: 2006
A harsh downshift from the automatic transmission my be noted on deceleration. Updating the transmission control module (TCM) software may correct this concern. Software revisions are commonly most helpful on newer vehicles. once the mileage builds up a worn component could cause similar problems. Whenever major transmission work in performed, the transmission software should be updated as necessary.
Visitor, 2006 Suzuki Grand Vitara, 151,000 mi
Engine just started jerking when downshifting (automatic)at around 50-55 MPH.