Officials say the government is investigating 2007-2008 model year Hyundai Elantra compact cars after receiving four reports of engine stalling due to problems with the vehicle's fuel pump module.
The National Highway Traffic Safety Administration says on its Web site that its preliminary investigation involves about 167,000 Elantras.
One owner says the car stalled in the fast lane of a three-lane highway and caused a crash involving three cars and one injury.
Three of the four reports involved vehicles with only 600 miles or less.
A Hyundai spokesman says it's too early in the process to draw any conclusions about the alleged safety issue.