General Motors has announced that production of new batteries for the Chevy Bolt EV and Chevy Bolt EUV all-electric vehicles has once again resumed at LG Chem production facilities in Holland and Hazel Park, Michigan. The new battery production follows a recall for all Chevy Bolt EV and Chevy Bolt EUV models issued for a manufacturing defect in the vehicles’ battery pack.
In addition to resumed production for Chevy Bolt EV and Chevy Bolt EUV battery packs, General Motors also announced that it will install new advanced diagnostics software that will increase the available charging parameters over existing guidance. GM will launch the new diagnostics software in the next 60 days.
“We’re grateful for the patience of owners and dealers as we work to advance solutions to this recall,” said GM executive vice president, Global Product Development, Purchasing and Supply Chain, Doug Parks. “Resuming battery module production is a first step and we’ll continue to work aggressively with LG to obtain additional battery supply. In addition, we’re optimistic a new advanced diagnostic software will provide more convenience for our customers.”
General Motors anticipates replacement battery modules to begin shipping to dealers by mid-October. GM also said that it is working with LG Chem to review and enhance quality assurance programs, with the battery supplier implementing new manufacturing processes moving forward.
The Chevy Bolt EV and Bolt EUV battery packs affected by the GM recall may include two manufacturing defects, specifically a torn anode and a folded separator, both of which could be present in the same battery cell. These defects are believed to be the cause of several vehicle fires, one of which recently occurred in Georgia.
General Motors will work to replace the affected battery packs with newly manufactured units, prioritizing those vehicles produced during specific timeframes where the defects appear to be clustered. New batteries will include an extended 8-year / 100,000-mile limited warranty (8-year / 160,000 km limited warranty for vehicles in Canada).
General Motors is also set to launch new advanced diagnostic software designed to detect specific abnormalities that may indicate a damaged battery. The software will alert customers to potential anomalies, and prioritize damaged batteries for replacement units. The new software requires dealer installation.
Moving ahead, GM states that customers who follow updated guidance may safely park their vehicle wherever they choose, but recommend leaving “ample space” around the vehicle.
“GM is not aware of any fires that have occurred where customers followed this safety guidance, in parking decks or otherwise,” the automaker states.
The guidance includes limiting vehicle charging to 90 percent capacity using the Target Charge Level mode, charging the vehicle frequently to avoid depletion below 70 miles of remaining charge, parking the vehicle outside immediately after charging, and not charging the vehicle indoors overnight.