Volvo recalls 2011-2013 S80 sedans over transmission-related stalling risks
This new NHTSA recall pertains to a select group of 2011 through 2013 Volvo S80 sedans and in these models, the electronic transmission control module (TCM) may have a software issue that could prevent the transmission from shifting from fifth down to fourth gear. In total, there are 1,469 Volvo S80 sedans included in this transmission recall.
The automatic transmission downshifts from 5th gear to 4th gear as the vehicle decelerates in order to prevent the engine RPMs from getting too low. When the RPMs drop too low, the engine often stalls. Having your vehicle suddenly and sporadically stall as you decelerate can become quite a problem if you are in traffic as you would lose the power brake and power steering assist. This would make continuing to slow a problem as well as increased difficulty in steering the car to the side of the road with the loss of motive power. This presents an obvious safety risk so the Volvo folks have issued the recall to get these vehicles back to dealerships before anyone gets hurt.