Fiat Chrysler Automobiles, Maserati's parent company, has recalled 1.1 million vehicles worldwide for this same issue. The affected vehicles span several model years and all share a ZF-designed eight-speed automatic transmission. The shifter design in these vehicles is similar to but not exactly like the one in the two Maseratis. Currently, 41 injuries have been attributed to this issue. There seems to be no indication of hardware failure for any of these incidents.
In the United States, the 2012-14 Dodge Charger and Chrysler 300 and 2014-15 Jeep Grand Cherokee were named in this first recall. Actor Anton Yelchin's recent death, caused when he was crushed by his 2015 Jeep Grand Cherokee, may be related. As of the current model year, the Charger, 300, and Grand Cherokee have an updated shifter design.
According to the documents, FCA is currently working on a software update that will remedy the issue. Because the solution must be tested and verified, the company doesn't expect it to be ready for another few months.
Both recalls were brought about after a NHTSA investigation. In May, NHTSA suggested Maserati issue a recall and on June 1 the company agreed with the group's assessment, though Maserati did tell NHTSA that they have had no complaints of vehicles rolling away.
We're currently waiting on comment from Maserati North America and will update the story when more information is available.