NHTSA Complaint #11445820 — 2021 RAM 3500

On 1 Jan 2022 after driving from Washougal WA to Vancouver WA, I noticed after stopping for food that my front driver-side tire was near completely flat. Upon checking the dash information screen and cycling to the tire pressure screen, it reflected that my front drivers side tire was at 15 PSI, while the other 5 tires (dually) were at the proper pressures. The problem is that the TPMS did not, nor continues to not display a low pressure warning AT ALL, despite the vehicle being aware of the low measured pressure. This vehicle is brand new, with less than 7000 miles on the odometer. I tow heavy loads, and without a doubt the tire was well below proper pressure for at least 20 miles of driving; the only way I discovered was by noticing the tire after stopping. The tire pressure screen confirmed what I saw, but zero warnings were displayed (low tire pressure, TPMS light, service message, etc) as all TPMS cars/trucks I have driven over 25 years have done. This is a huge safety issue, and deserves significant attention as this situation could have resulted in a major accident. The vehicle is 100% stock with zero modifications. I have included pictures to support the facts above. The vehicle is also in the “failed state” should your agency wish to examine and confirm. This could very well result in a large scale safety recall.