Toyota faced a major safety crisis from 2009 to 2010 due to issues with unintended acceleration in some of its vehicle models. Key events included Toyota recalling over 10 million vehicles worldwide due to issues with floor mats and sticky pedals that could cause the accelerator to get stuck. The US National Highway Traffic Safety Administration (NHTSA) launched investigations and eventually forced Toyota to stop selling some models. The recalls and issues damaged Toyota's reputation for safety and quality.