Toyota USA has instructed all its dealers to temporarily suspend sales of eight models involved in the recall for “sticking accelerator pedal” problems announced a week ago. About 2.3 million vehicles are in the list.

Toyota has investigated reports of sticking accelerator pedal mechanisms in certain vehicles without the presence of floor mats. There is a possibility that the accelerator pedal may, in rare instances, mechanically stick in a partially depressed position or return slowly to the idle position. This unintended acceleration could prove to be dangerous.

“Helping ensure the safety of our customers and restoring confidence in Toyota are very important to our company,” said Group Vice President and Toyota Division General Manager Bob Carter. “This action is necessary until a remedy is finalized. We’re making every effort to address this situation for our customers as quickly as possible.”

The following models are involved: 2009-2010 RAV4, 2009-2010 Corolla, 2009-2010 Matrix, 2005-2010 Avalon, Certain 2007-2010 Camry, 2010 Highlander, 2007-2010 Tundra and 2008-2010 Sequoia. No Lexus or Scion vehicles are affected by the recall.

Due to the sales suspension, Toyota will temporary stop producing vehicles on selected production lines for a week in February. Toyota’s Indiana, Kentucky, Texas, Canada and Subaru’s Indiana plant are involved.

Last year, the Japanese automaker recalled nearly four million vehicles. The problem? Floor mats that could trap accelerator pedals, also causing unintended acceleration. The two issues are unrelated, says Toyota, although 1.7 million vehicles are affected by both recalls.

This recall only involves the abovementioned models in North America, and does not include right-hand drive Toyotas sold elsewhere in the world.