TSB (Canada): Condensation Dripping from the Headliner

Toyota Canada has published Technical Service Bulletin T-TCI-5089, “Condensation Dripping from the Headliner,” April 13, 2018, for the 2016–2018 Prius and 2017–2018 Prius Prime. The bulletin is available by subscription to techinfo.toyota.com; at this writing, I don’t know of a free source.

The bulletin says, “In areas with quick temperature fluctuations, some customers may observe signs of water entry in the sides of the headlining & map lamp area due to condensation.” The countermeasure, applicable only to vehicles with the problem, is to “insulate the areas between the roof cross bows, front & center pillar and near the map lamp” using pads, part numbers 63341-12340, 63342-12270, 63314-12180, and 63351-12070, according to a detailed repair procedure in the bulletin.

I didn’t see a bulletin for the U.S. market about this; I don’t know why a bulletin was issued only for Canada.