Vehicles Affected: Approximately 300 model-year 2017 Maserati Quattroporte and Ghibli luxury sports sedans manufactured between July 1 and Oct. 12, 2016
The Problem: The rear differential unit pinion nut may not have been properly tightened, allowing the pinion nut to loosen. A loose pinion gear may bind, possibly resulting in the rear wheels locking up and increasing the risk of a crash.
The Fix: Dealers will inspect the rear differential unit pinion nut torque and replace the rear differential unit, as necessary, for free.
What Owners Should Do: Maserati will begin notifying owners this month. Owners can call the automaker at 201-510-2369, the National Highway Traffic Safety Administration's vehicle-safety hotline at 888-327-4236 or go to www.safercar.gov for more info.
Need to Find a Dealer for Service? Go to Cars.com Service & Repair to find your local dealer.