TIME Automotive

Feds Close Tesla Investigation

Christie Appointees Ban N.J. Direct Sales for Musk's Tesla Cars
A Model S with sits on display at the Tesla store in the Short Hills Mall in Short Hills, NJ, Wednesday, March 12, 2014. Emile Wamsteker—Bloomberg/Getty Images

The National Highway Traffic Safety Administration is happy with the electric car company after it agreed to install more shields underneath its vehicles to prevent roadway debris from damaging its batteries and sparking fires

The United States’ federal highway safety regulator has closed its investigation into battery fires in Tesla’s Model S electric cars.

“A defect trend has not been identified,” the National Highway Traffic Safety Administration said in its report this week.

The regulator opened the investigation after three battery fires last year raised questions about the vehicle’s safety. The NHTSA said Tesla has made sufficient design tweaks to “reduce the frequency of underbody strikes and the resultant fire risk.”

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