NEW YORK (CNNMoney.com) -- The number of Toyotas being recalled now tops 5.3 million vehicles, some of them are among America's most popular cars. Here is what Toyota owners need to know as the carmaker scrambles to find a fix for the problem.
Which cars are involved? This specific recall affects Toyota's 2009-2010 RAV4, Corolla and Matrix models; the 2005-2010 Avalon; 2010 Highlander; 2007-2010 Tundra and the 2008-2010 Sequoia; and some 2007-2010 Camrys (only those with gas pedal assemblies made by a specific Toyota supplier; your dealer can check). No Lexus or Scion models are involved.
What's this recall for? Over time, gas pedals in some of the recalled cars become sticky. At first, they just become a little harder to push down and, when you lift your foot off the gas, slower to come back up. In the worst case, the pedal on these cars can become stuck part way down. That, of course, could mean the car keeps accelerating, or just keeps going, even after you take the foot off the gas.
This recall is separate from an earlier recall, announced in November, to fix a problem in which the gas pedal can get stuck in the cars' removable floormat.
How's Toyota going to fix this? The automaker is still working on a solution, which will involve replacing all or part of the gas pedal assembly. It is working with the supplier on a new pedal design that should solve the problem.
What, exactly, is causing this? A lever that is part of the accelerator pedal assembly can become worn and begin to stick. This is especially true if the part becomes moist, such as when condensation occurs on a cold morning or, in some cases, if the vehicle is parked in a humid place for a long period.
If there's no solution yet, and the car is supposedly are safe to drive, why recall them now? Toyota says it just wants to make Toyota owners aware of the issue so that if they start having problems, they know what to do. Once Toyota finds a solution, drivers will be notified and asked to bring their car to a dealership for repair.
What if I notice problems? If your gas pedal starts to feel sticky, stop driving immediately, Toyota says. Pull over in a safe place, then call a dealer and have them come get your car.
What if the gas pedal is really stuck? If it's stuck part way down, applying the brakes should be enough to slow the car and bring it under control. Don't pump the brakes, though. That will just weaken your power brakes. Instead, press and hold the brakes. Also, at the same time, you can shift the transmission into neutral, which will stop the engine from driving the wheels.
It's good to know what to do in cases like this no matter what type of car you drive, said Jake Fisher, senior automotive engineer for Consumer Reports magazine. Although even in cars affected by this recall, it's a rare occurrence, he said, it can happen in almost any car model as it gets older.
What if I'm not having any problems... yet? Since the problem develops gradually over time, Toyota says, you should have plenty of warning before the pedal gets really sticky. If you're concerned, take your car to a Toyota dealer and they can tell if your gas pedal is still OK. Remember, though, there is still no prescribed remedy.
Beyond the recall, why stop making and selling all these cars? Toyota says it wants to ensure the safety of its customers and restore confidence in their brand. While that may well be true, Toyota is also under a legal obligation to stop selling cars that are under a recall, according to the National Highway Traffic Safety Administration.
Since Toyota still hasn't figured out a remedy for this problem, a Toyota spokesman said, they had to stop production until a fix could be found. Otherwise, Toyota would be filling dealer inventories with cars that needed to be fixed and couldn't be sold until they were.
What if I rent a car? The car rental firms Hertz, Avis and Enterprise Holdings, operator of Enterprise, Alamo and National car rental agencies, have announced they are removing from their rental fleets all models in the gas pedal recall until they are fixed.
What's all this about floor mats? This latest recall is unrelated to an earlier, and still ongoing, recall of 4.2 million cars to fix a problem in which the gas pedal could get hung up on the car's floor mats. Most of the cars -- 1.7 million of them -- involved in this recall are also covered by that one.
What's the remedy for the floor-mat problem? In that case, Toyota is altering the actual pedal itself to make it shorter and, therefore, less likely to get stuck on the lip of the mat. Toyota also is replacing the floor mats in some cars. In some Toyota and Lexus models, the automaker also is installing a "brake override" system, which immediately cuts engine power to the wheels when the brake pedal is pressed. In the meantime, Toyota is advising drivers who haven't yet had their cars worked on to remove the floor mats.
What else is Toyota doing to prevent problems like this? Toyota says it is making "brake override" -- a system that cuts engine power to the wheels as soon as the brake pedal is pressed -- standard equipment on all of its cars.
Is there more Toyota could do? Some experts, including those at Consumer Reports magazine, have suggested that Toyota change how the "keyless start" system in its cars operates. In some Toyota and Lexus models, the driver can start or turn off the car without using the key by just pressing a button in the dashboard.
If one of those models were to start accelerating wildly, a driver could turn the engine off while still driving by pressing and holding that button for three seconds. But a panicked driver, especially one who wants to keep both hands on the steering wheel of his speeding car, is unlikely to do that. Instead, he's more likely to press the button briefly but repeatedly. In a Nissan with keyless start, for instance, three presses like that would do the trick.
Walmart, Target and Kroger's profit is taking a hit as they fight to reach shoppers online. More
Get ready for sticker shock at the gas station if you're one of the estimated 41.5 million Americans hitting the roads this Memorial Day weekend. More
It's normal for car prices to rise with options. But the Model 3's price reaches much farther than most. More
In 1998, Ntsiki Biyela won a scholarship to study wine making. Now she's about to launch her own brand. More
It mostly boils down to confusion, commissions, and fees. More