Federal safety regulators said on Monday that they had received complaints alleging that 34 deaths were caused by unintended acceleration in Toyota vehicles. Since late January, when Toyota temporarily halted sales and production of eight models, saying their accelerator pedals could stick, consumers have filed reports about nine fatal crashes that they claim resulted from a Toyota accelerating out of the driver's control. The crashes, which involved 13 deaths and 10 nonfatal injuries, occurred between 2005 and 2010 but had not been reported to regulators until now. In the previous 10 years, regulators had logged reports of 17 Toyota crashes involving 21 deaths that might be linked to sudden acceleration. The new reports emerged on the same day that Toyota said it was considering new discounts and longer warranties to help attract and reassure customers. Company executives told dealers at the National Automobile Dealers Association convention in Orlando, Fla., that they were weighing several options. The new incentives are expected to be introduced by the beginning of March. Jesse Toprak, the vice president of industry trends at TrueCar.com, which tracks vehicle sales and pricing, said Toyota needed to offer various incentives to overcome the damage done by its recent recalls. He said Toyota should offer discounts of at least $1,000 and longer warranties to new buyers, automatically extend warranties for customers whose vehicles were recalled and seek to win over people who own competing brands in response to the discounts that General Motors and other carmakers were offering Toyota owners. 'Toyota had the luxury of simply ignoring the competition for nearly the last two decades,' Toprak said. 'Now they have to be aggressive and creative.' A Toyota spokesman, Mike Michels, said dealers had completed repairs on about 500,000 of the 2.3 million vehicles in the United States affected by the so-called sticky-pedal recall. That recall, initiated Jan. 21, is separate from one begun in November over floor mats that could trap the accelerator pedal. Together, the two recalls cover about 8 million vehicles globally, including some models that are affected by both problems. Earlier this month, Toyota announced a recall of more than 400,000 hybrid cars, including the 2010 Prius, after safety regulators in Washington and Japan began looking into problems with the cars' braking systems. The National Highway Traffic Safety Administration said on Monday that consumers had filed nearly 1,120 complaints about the Prius by last week, alleging 34 crashes with six injuries and no deaths. 'It is normal for NHTSA to receive an increase in consumer complaints after a recall is announced and the public learns of a safety defect,' a Transportation Department spokeswoman, Olivia Alair, said in a statement. 'NHTSA takes every complaint seriously and reviews each one carefully.' Toyota responded to the new reports with a statement saying it takes 'all customer reports seriously' and is 'taking steps to implement more stringent quality controls, investigate customer complaints more aggressively, keep open lines of communication with safety agencies and respond more quickly to safety issues we identify.' One recent report details the October 2009 crash of a 2005 Toyota Highlander in New Hampshire that killed four people. Local news accounts indicated that the Highlander's driver, a 63-year-old Harvard University professor, lost control and crashed into another car. Both drivers and two members of the professor's family died. The police concluded that the floor mat had not interfered with the accelerator pedal but did not identify a cause. Only 2008 to 2010 model-year Highlanders have been recalled. In another complaint, a sibling of a man who died after his 2008 Toyota Tacoma pickup truck hit a pole Jan. 26 in Houston, wrote, 'It may relate to the gas pedal, so let Toyota know to recall this model, too.' 