The United States National Highway Traffic Safety Administration has launched a probe on some General Motors sedans after a fire incident in March led them to suspect the effectiveness of the carmaker's screening test. NHTSA opened a recall query to determine whether a stress test GM is employing on some of the recalled cars is effective enough.
The fire occurred after the stress test, which was intended to spot the problem. GM recalled in May 42,904 units of its 2012 and 2013 Buick LaCrosse and Regal cars and 2013 model Chevrolet Malibu Eco cars that are equipped with its "eAssist" mild hybrid system. The recall was implemented to fix circuit boards that may overheat and result to a loss of battery power and, in extreme cases, a fire in the trunk.
Overheating of the circuit boards in the generator control module in some of the cars may result to some problems like loss of battery charge and the illumination of a malfunction indicator light. The issue, however, does not involve the eAssist battery. The engine may stall of the warnings are ignored.
Around 22,000 of the recalled cars will have their battery packs replaced, while the remaining cars will undergo the screening test to determine if the control module needs to be replaced, GM disclosed. A spokesman said the recall is ongoing and the GM is cooperating with NHTSA in the probe.
He added that GM is unaware of any injuries or crashes related to the issue. He noted that GM has already implemented changes in the production process at its site.