Even though the transmission has been shifted out of reverse into neutral, the vehicle may unexpectedly move backwards, increasing the risk of a crash.
In the affected vehicles, when the transmission shift lever is moved from reverse to neutral, the reverse gear may stay engaged. When the transmission shift lever is moved from reverse to a forward gear position, the transmission may mechanically lock because both the reverse gear and forward gear are simultaneously engaged.
What to do: Book it in at your next service. There is no deadline and no charge.