NHTSA Complaint #11689864 — 2016 HYUNDAI TUCSON

Dear NHTSA, I am submitting this complaint to report a recurring issue with oil consumption in my Hyundai vehicle, which I understand is a known problem affecting this particular engine type and model. I am the original owner and have been a loyal Hyundai customer for many years. I have followed all recommended maintenance, including regular oil changes. Despite this, my vehicle has developed excessive oil consumption that has not been resolved through standard service procedures. The dealership has contacted Hyundai for approval to perform a combustion chamber cleaning, but based on my research and feedback from other owners, this procedure does not effectively address the root cause of the issue. My concern is that this problem may be indicative of a broader mechanical defect that could impact engine performance and safety. My 10-year warranty is nearing expiration, and I am worried that delays in resolving this issue may result in the loss of warranty coverage for necessary repairs. I believe this issue warrants further investigation, as it appears to be affecting multiple vehicles with the same engine configuration. I respectfully request that NHTSA review this matter and consider whether a broader safety investigation is warranted. Thank you for your attention. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)