There have been a number of warranty extensions for the CVT… this is just the latest.
the first was the 2010-2014 CVT… I can’t remember what the problems were with the 2015-2017 units, there were a few threads on it… and subaru extended the warranty. That might have been because of the 2010-2014 problems, the wording was “in the interest of customer satisfaction” or some such….
Then, this was all going on as the mid generation model refresh, so they included the 2018 in a different warranty extension. So people wouldn’t be afraid to buy the new car, I guess some of the issues were getting in the news, and subaru wanted people to not worry about buying one of their cars.
the 2019 was skipped, somewhere there is a document or statement that by then subaru was certain the CVT was ok, sales were going fine, and there wasn’t a need to extend a warranty for something that didn’t need it (subaru didn’t think it was needed in 2018, other than to give people warm fuzzies when buying the car).
WRK-21 was a recall for whatever the problem was at the time - the clutch pack - and that resulted in an extended warranty for cars on the list (Certain VIN ranges). There are actually 3 different problems with the Gen6 CVT transmissions that can happen, depending on which transmission, two are documented in different service bulletins, are very different causes and symptoms. The third was listed as having a to be determined date for a service bulletin release (it hasn’t been released yet).
The 2019 cars finally get an extended warranty - and the 2020 is bundled in. So, for whatever reason, the subaru statement that the 2019 didn’t need an extended warranty because they’ve been doing all of the prior extended warranties for customer satisfaction, and the product is good enough that it doesn’t need an extended warranty… is now out the window and those cars have an extended warranty.
16-155-25 | Technical Service Bulletin | CVT Warranty Extension | Jul 1, 2025 | 2019-2020 outbacks |
16-139-22R | Technical Service Bulletin | CVT Assembly (WRK-21) Warranty Extension | Jan 9, 2023 | 2020 outbacks |
16-129-20 | Technical Service Bulletin | CVT Warranty Extension | Jul 10, 2020 | Ascent? |
16-117-18 | Technical Service Bulletin | CVT Warranty Extension | Oct 9, 2018 | 2018 outbacks |
16-115-18 | Technical Service Bulletin | CVT Warranty Extension | Sep 6, 2018 | 2015-2017 outbacks |
16-107-17R | Technical Service Bulletin | CVT Warranty Extension | Mar 13, 2018 | 2010-2014 outbacks |
I haven’t seen a letter yet, but I’m sure the wording is similar, or the same, as the 2015-2017, and the 2018 letters.