Federal regulators are investigating the 2014 Chevy Impala after a driver reported that the emergency braking system activated multiple times without warning.
The driver says that in one instance, the Impala was traveling at 40 miles-per-hour with no one in front of it when the brakes activated. The car was rear-ended. No injuries were reported.
The National Highway Traffic Safety Administration opened the investigation to determine whether the alleged defect is widespread. More than 60,000 Impalas of the 2014 model year are on U.S. roads.
The investigation is unrelated to GM’s recent recall of 2.6 million older model Chevrolets and other cars for defective ignition switches.