Toyota Motor Corp. said Wednesday it will replace accelerator pedals on about 4 million recalled vehicles in the United States because the pedals can get stuck in the floor mats.

As a temporary step, Toyota will have dealers shorten the length of the gas pedals beginning in January while the company develops replacement pedals for their vehicles, the Transportation Department and Toyota said. New pedals will be available beginning in April, and some vehicles will have brake override systems installed as a precaution.

Popular vehicles such as the Toyota Camry, the top-selling passenger car in America, and the Toyota Prius, the best-selling gas-electric hybrid, are among those recalled. Also included is the luxury Lexus ES350, the model in a fiery fatal accident in California that focused public attention on the danger.

Toyota, the world's largest automaker, announced the massive recall in late September and told owners to remove the driver's side floor mats to prevent the gas pedal from potentially becoming jammed. The recall and extensive fix is the latest problem to confront the Japanese automaker's sterling reputation for quality during a period of rapid growth, and it prompted top executives to push for improved quality controls.

"The safety of our owners and the public is our utmost concern and Toyota has and will continue to thoroughly investigate and take appropriate measures to address any defect trends that are identified," Toyota said in a statement.