NHTSA Complaint #11614884 — 2023 ENTEGRA ETHOS

I have a major issue with my 2023 Entegra Ethos Class B RV that I purchased new in June 2023 from La Mesa RV in Arizona. The vehicle currently has 14,083 miles. On a trip last week we began experiencing a severe vibration in the right rear of the van when driving highway speeds of 65 - 70 mph. I went to a tire store and was told that the tires are incorrect for the weight of this vehicle. Discount Tire has a policy that does not allow them to mount tires that do not meet the vehicle's specification. The left rear tire is bulging down the center to the point where it barely fits in the wheel well. The tire store manager said that it would explode in the near future if it continued to be used. The “Tire and Loading Information” sticker that Entegra applied over the original RAM manufacturer sticker calls for LT 225/75R 16C tires. The tires that came with the vehicle are LT 225/75R 16E which have a Load Rating of E and a Load index of 112. The C tires that this vehicle requires have a Load Rating of C and a Load Index of 121. We were forced to purchase 5 new tires with a C Load Rating so that we can continue to use the vehicle. We had a lengthy correspondence with Entegra to get reimbursed for this expense and their conclusion is that " those are not the rims from manufacturing". These rims came with the vehicle that we purchased new from La Mesa RV. After 7 calls to La Mesa we were unable to get connected to anyone. Messages were left with no response. We believe that this is a serious safety issue. I think that there are hundreds of Entegra Ethos RVs on the road with underrated tires that do no meet their own Tire and Loading Information sticker that they placed over the original sticker. Entegra added so much weight to this vehicle that they had to add a Hellwig suspension, yet they kept the original manufacturer tires that cannot support the added weight. My wife and I are grateful that this tire didn't explode while driving on [XXX] last week. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (F