a car parked on the side of a road: A Chevrolet Bolt electric vehicle is shown on stage at the 2017 North American International Auto Show in Detroit.General Motors on Friday issued a new recall that expands to all Chevrolet Bolt EVs and the new EUV for fire risk and will provide customers with an eight-year warranty or 100,000 miles on new battery modules for the affected cars.

The automaker said it expects the recall to cost it an additional $1 billion and is seeking reimbursement for some of that cost from the battery supplier, LG Chem.

GM said that, in rare cases, batteries supplied to GM for the Bolts “may have two manufacturing defects – a torn anode tab and folded separator – present in the same battery cell, which increases the risk of fire.” The high voltage batteries used in the Bolts are made by LG Chem’s Ochang, South Korea, facility though GM discovered manufacturing defects in certain battery cells produced at LG manufacturing facilities beyond the Ochang, Korea, plant, GM said.

GM’s upcoming EVs will use the automaker’s proprietary Ultium battery system.

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