On certain 911 GT3 Touring models, when the rear spoiler is raised manually, both the main and auxiliary center high-mounted stop lamps may switch on when the vehicle is braking. Canadian regulations only allow one of the two centre high-mounted stop lamps to be switched on while braking.
Multiple stop lamps that turn on at the same time could cause confusion for other drivers and increase the risk of a crash.
Porsche will notify owners by mail and advise you to take your vehicle to a dealership to reprogram the rear spoiler control unit.