U.S. safety regulators are investigating incidents of stalling in Ford Motor's Focus electric cars after receiving 12 consumer complaints.
The preliminary evaluation of 2012 and 2013 model-year cars was opened after 11 consumers alleged their vehicle shut down while driving, according to documents filed with the National Highway Traffic Safety Administration. An estimated 1,000 of the plug-in electric cars, launched last year, are included in the probe.
Half of the incidents occurred at speeds above 30 mph, and all of the complaints were received within the past five months, according to NHTSA. No accidents or injuries were reported.
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A Ford spokeswoman said the automaker is cooperating with NHTSA's probe.
A preliminary evaluation is the first step in a process that could lead to a recall should regulators determine that a safety issue needs to be addressed by a manufacturer.