FCA US is recalling 811,586 SUVs and sedans in the U.S. so that dealers can take measures to mitigate a rollaway risk arising from driver confusion about the electronic gearshift assembly.

The recall covers 2012-2014 model-year Dodge Charger and Chrysler 300 sedans, along with 2014-2015-MY Jeep Grand Cherokee SUVs, FCA (Fiat Chrysler Automobiles) US said in a released statement.

Some drivers are mistakenly exiting their vehicle after assuming they’ve placed it in park and turned off the engine when, in fact, they haven’t. The confusion has been linked to the design of the electronic shift levers — a design that National Highway Traffic Safety Administration investigators have previously called counter-intuitive.

FCA US said the company is aware of 41 injuries that are potentially related. “The vehicles involved in these events were inspected and no evidence of equipment failure was found,” the automaker said.

In these vehicles, the electronic gearshift lever returns to the same position after each manipulation; it doesn’t move into a detent the way conventional gearshift levers do.

“Gear-selection is conveyed to the driver by multiple sets of indicator lights, not gear-selector position, and unless due care is taken, drivers may draw erroneous conclusions about the status of their vehicles,” FCA US explained.

“The vehicles also deliver warning chimes and alert messages if their driver-side doors are opened while their engines are still running and “PARK” is not engaged," FCA US said. "However, investigation suggested these measures may be insufficient to deter some drivers from exiting their vehicles without selecting “PARK,” so FCA US will enhance the warnings and transmission-shift strategy on these vehicles.”

The enhancements will combine warnings with a transmission-shift strategy to automatically prevent a vehicle from moving, under certain circumstances, even if the driver fails to select “park.”  

FCA is also recalling 52,144 vehicles in Canada, 16,805 in Mexico, and 248,667 outside the NAFTA region to address the same issue.

Affected vehicle owners will be notified when service becomes available. In the interim, FCA US urges drivers to follow the instructions in the owner’s manual.

The automaker began equipping the Charger and 300 with a new shift-lever design in model-year 2015. The Grand Cherokee’s shift lever received an update in model-year 2016.

Vehicle owners can reach the FCA US Customer Care Center at (800) 853-1403.