Some 2015-2019 Transit High Roof Bus/Passenger Wagon vehicles may have a headliner that does not stay seated at the C and/or C and half pillar hard trim. A permanent repair solution for the existing headliners has been developed and is expected to be available via TSB by late 2nd quarter 2019. Continue to monitor OASIS for updates. In preparation for the TSB repair, encourage your parts department to locally source 3M 04747 Super Repair Adhesive and mixing nozzles 3M 38191 (12 pack) or 38193 (50 pack) if you anticipate performing the upcoming repair. Do not fabricate alternative headliner attachment methods as an interim repair. Headliner retention in these areas is intentionally delicate to allow for proper side curtain airbag deployment.