WASHINGTON — Toyota Motor Corporation said today it was recalling optional "all-weather" floor mats in 55,000 Lexus ES 350 and Toyota Camry passenger cars because the mat could interfere with the gas pedal and lead to a crash.

The National Highway Traffic Safety Administration issued a consumer advisory about the heavy-duty rubber floor mats, noting that if unsecured, the mat could move forward and trap the gas pedal, causing the vehicle to accelerate uncontrollably.

In a separate move, Nissan Motor Co. said it was recalling nearly 420,000 sport utility vehicles because of possible corrosion in the tube where motorists pump gas.

The recall involves Nissan Pathfinder and Infiniti QX4 SUVs from the 1997-2001 model years. More than 370,000 of the vehicles under recall were originally sold or are currently registered in 22 "cold weather" states and the District of Columbia. Another 45,000 vehicles are in Canada.

In the Toyota recall, NHTSA urged drivers of other vehicles, including the Avalon and Prius, to check the driver-side floor mats to ensure they were properly installed. NHTSA spokesman Rae Tyson said it was taking the step "because we believe potentially it is a very serious safety issue."

Toyota spokesman Bill Kwong said the automaker had not received any complaints about the Avalon and Prius. In some cases, he said the floor mats — used to collect rain water, mud and snow — were stacked on top of the original carpet mats and wedged up against the accelerator.

The vehicle has hooks on the floor that can only secure one mat at a time.

Toyota has received 22 complaints and learned of six accidents allegedly connected to the issue. Kwong said they did not know of any injuries linked to the mats.

The Japanese-based automaker plans to notify owners in early October and expects replacement mats to be available at dealerships by late November.