TSBs are just that, technical service bulletins on how to fix a common issue. There's no requirement for a dealership to perform the TSB on a new car, a majori

TSBs are just that, technical service bulletins on how to fix a common issue. There's no requirement for a dealership to perform the TSB on a new car, a majority of cars with outstanding TSBs won't ever experience the problem the TSB addresses. There IS however a requirement to fix any recalls before a car can be sold, at least in the USA. But there are MANY more TSBs than recalls. My Honda Odyssey has a TSB for the transmission basically eating itself. The fix is a full transmission fluid change (3x drain and fill) and a firmware flash. My van is beyond the mileage where the dealer would do this under an extended warranty specific to this TSB, but I've never actually experienced any of the symptoms mentioned in the TSB. Van is a 2016 with 115k miles on it.