NHTSA Complaint #11448536 — 2012 CHEVROLET TRAVERSE

2012 chevy traverse. Feb 20 2020. Milage 127691 My valve cover gaskets failed causing the cabin to fill with smoke. Sept 11 2020 right front axel seal failed causing ptu to lose all the transfer case fluid and bearings. Transfer case replaced. Feb 22 2021 milage 141464 transmission slipping had new one installed. Jan 5 2022 milage 153350 had timing chains replaced. Check engine light came on. Back on june 29 2012 Chevrolet issued a bulletin No. 11340B special coverage adjustment timing chain wear. It is for 2007-2009 traverse acadia outlook enclave equipped with the same 3.6L Engine as my 2012 and other years. they extended warranty coverage for 10 years 120k miles. seeing this problem existed in 07-09 models this should be looked at and to include other years as well. I am a member of 2 facebook traverse groups and there are a lot of others with the same issue. The owners manual says to change engine oil every 5000 miles I have done that. Please look into adding additional years to this recall. Timing chains should not fail stretch or need replacing as much as I have seen others needing to. A vehicle should go well over 200k miles before needing replacing.