Dealer Letter: March 7, 2019 ZJB Phase 2 Launch for Certain 2011 ? 2015 Model Year Prius Vehicles and Certain 2012 ? 2015 Model Year Prius PHV vehicles. Toyota has received reports about certain internal malfunctions of the brake booster assemblies in some of the subject vehicles. Although the brake booster and brake booster pump assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), Toyota is now offering a voluntary Customer Support Program that applies to certain internal malfunctions of the brake booster assemblies. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
