A new class-action lawsuit has been filed in Tennessee regarding the “shift to park” issue that is commonly experienced by second-generation GMC Acadia owners.
We’ve written about the “Shift to Park” problem on a handful of occasions in the past. Some GMC Acadia owners report the vehicle’s electronic shift mechanism will fail to recognize that it has been put into park and will then a flash an error message on the dash instructing the driver to “shift to park.” The crossover will not shut off or lock if it is not in park, either, which can leave the owner stranded in the vehicle. Our initial article on this issue has attracted over 500 comments and counting, with many readers chiming in to say that they have experienced this exact or a similar issue for themselves with their GMC Acadia.
This new class-action lawsuit was filed by plaintiff Rilla Jefferson on behalf of all 2017 and 2018 model year GMC Acadia owners located in the state of Tennessee, according to Car Complaints. Jefferson says she purchased a new 2017 GMC Acadia when she started experiencing the shifter problems in March of 2018. In addition to the aforementioned shift to park issues, Jefferson says her vehicle is also plagued with other electrical issues that will cause it to hesitate when starting or fail to start up at all. She eventually took the vehicle to a dealership, where the service department replaced the battery, but this did not fix the problem. Another GM service center told her she’d have to pay for an inspection and any repairs.
Car Complaints‘ recent article on the matter points out that GM issued a Technical Service Bulletin to dealerships regarding the issue in May of 2018. The TSB said that vehicles will display “shift to park message on (Driver Information Cluster) when in park. Vehicle may not shut off when put in park or may not start.” Another TSB issued in October of 2018 indicated the cause of the condition “may be the park switch in the transmission control (shifter) assembly not pulling BCM signal low to electronically show Park condition.” In simpler terms, the switch that detects when the vehicle is in park is not relaying a signal to the vehicle’s central control module, for whatever reason.
Car Complaints reports Jefferson’s class-action suit is being brought forth by two law firms, Lafferty Law Firm, Inc. and Lemberg Law. Be sure to subscribe to GM Authority for updates on this matter as GM continues to work on a solution for owners and for more GMC Acadia news, GMC news, and around-the-clock GM news coverage.