There have been no reports of fires or injuries from the affected cars, which include some of Toyota's biggest volume sellers. 2013 and 2014 Camry, Camry Hybrid, Avalon, Avalon Hybrid and Sienna models equipped with heated seats are included in the stop-sale, as are 2014 Tundra pickups and Corolla sedans. The exact number of vehicles with the non-compliant materials are still being tabulated, according to The Detroit Free Press.
According to a Toyota spokesman, the National Highway Traffic Safety Administration has been notified, although it remains to be seen if a recall will be issued. Outside of a full recall, though, it's unclear how Toyota will deal with vehicles equipped with the flammable materials that have already found homes.
In the meantime, Toyota is reportedly developing a fix for those vehicle still sitting on dealer lots.
UPDATE: John Hanson, National Manager, Environmental, Quality, and Safety Communications for Lexus, has confirmed to Autoblog that no Lexus models are affected by this seat fabric issue.
UPDATE II: Toyota has released an official statement on the stop sale. You can read it below.
January 30, 2014
Toyota has informed the National Highway Traffic Safety Administration (NHTSA) that it has initiated a stop sale of certain Avalon, Avalon Hybrid, Camry, Camry Hybrid, Corolla, Sienna, Tacoma and Tundra vehicles equipped with seat heaters in order to address a non-compliance issue.
In involved vehicles, the seat heater, which is a small portion of the soft materials of the seat assembly, does not meet a provision of U.S. Federal Motor Vehicle Safety Standards (FMVSS) requiring materials to retard flame at a specified rate. Toyota is preparing a modification for this condition, which will be implemented on all covered vehicles in dealer inventory.
There have been no reports globally of any related incidents in the field with units in operation. Per NHTSA regulations, Toyota will file a Non-Compliance Information Report today.