Engine Exhaust System problems of the 2010 Toyota Sequoia

While towing 6000 lb travel trailer heat exiting the exhaust has melted rear bumper cover near exhaust tip. Everything on vehicle is factory original and should not be melting from excess heat generated by towing within factory specified weight limits. Poses a fire risk.

I have an ammonia smell, worse than a rotten egg, under hard acceleration, that comes through the vehicle vents and into the cabin, even with all windows up and vents on recirculation or outside air. Many Sequoia owners have reported this to Toyota, and they have no known fix. The odor that comes into the cabin burns your eyes for a few seconds, as well as makes my passengers and I nauseous, and distracts me when I'm driving. I believe this is a safety hazard, because we are inhaling whatever is in the cabin, and I can imagine that it is not safe, like any exhaust.

While pulling our travel trailer with our 2010 Toyota Sequoia limited 5. 7, upon stopping to fuel up the bumper around the exhaust pipe had melted and was smoking. We noticed in the interior a foul smell, like a plastic burning but couldn't figure it out. We stopped to fuel up and I checked under the hood and then discovered where the problem was. The tow vehicle was well within limits according to the manufacturer.

2010 Toyota Sequoia. Brand new. Bumper began to melt from extreme heat emitting from exhaust pipe. Strong smell of smoke in vehicle. Brought to Toyota. Had Toyota rep. Inspect. He stated that Toyota has rec. 'd. Other complaints of same and that they are working on solution. I feel that this is a fire hazard.

In June 2010, took family vacation from virginia to disney world. Pulled travel trailer rated below tow rating (7,000 lbs). When arrived, noticed that the rear bumper melted all around the exhaust. Exhaust does not clear the bumper. If you look at other tow vehicles, the exhaust pipe clearly is away from the vehicle. The excess load from pulling the trailer creates excess heat. Reported the problem to Toyota, they provided me with a new bumper, changed nothing else. Decided I did not want this to happen again, went to a Toyota parts site on the south east region and ordered a exhaust pipe tip. Works great. Takes the heat past the bumper. I should not have had to buy this, Toyota should recall and provide the exhaust tip on all.

2010 Sequoia platinum edition. When towing a trailer the rear bumper section around the exhaust pipe exit becomes black and melts from the extreme heat. A fire hazard. Dealership notified 3 separate occasions with no corrective action.