The contact owns a 2017 Toyota Tundra. The contact stated while driving 65-70 MPH, the TPMS warning light illuminated. The contact pulled over and became aware that the passenger’s side rear tire was losing air. The contact attempted to use the M jack; however, the jack was too small. The contact used several rocks to add height to raise the vehicle up with the M jack. The flat tire was replaced with the spare. The contact was concerned about the vehicle falling off the jack. The vehicle was taken to the local dealer, and the tire was patched. The vehicle was repaired. The dealer declined to replace the jack. The manufacturer was contacted and opened a case. The failure mileage was approximately 87,500.