WASHINGTON (Reuters) – General Motors Co (NYSE:) said on Monday that battery production has resumed for its recalled Chevrolet Bolt electric vehicle and that battery replacements will begin next month.

GM stated that the battery suppliers LG batteries plants in Holland, Michigan and Hazel Park have resumed production, and LG has added capacity to supply more battery cells for GM.

The largest U.S. automobile manufacturer announced last week that it will extend the shutdown at a Michigan assembly facility to October due to a recall of Chevrolet Bolt electric cars over battery problems after 13 fires. Monday was a non-event for GM. It did not say when production would resume.

GM increased its Bolt recall to 140,000 vehicles in August to replace the battery modules. The cost is now $1.8 billion. According to GM, it will seek reimbursement from LG.

GM announced Monday that replacement battery modules would begin shipping to dealers by mid-October.

GM believes two manufacturing defects, a fold separator or a torn aniode, are responsible for the battery fires that have been reported in rare cases.

GM stated that LG had implemented new manufacturing procedures and worked closely with GM in order to improve its quality assurance programs and give customers confidence about its future batteries.