GM to replace battery modules in recalled Chevy Bolt EVs starting next month

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General Motors said on Monday that it replace battery module As the Chevrolet Bolt EV and Bolt EUV vehicles were recalled next month, supplier LG Chem has resumed production of cells at two factories in Michigan.

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The company said the replacement modules, which are made from lithium-ion battery cells, will begin shipping to dealers in mid-October. Chevy Bolt EV owners will be able to bring their vehicles to the dealership, where the old module will be replaced for the new one.

GM halted production of the Chevy Bolt EV and EUV in August due to battery pack shortages related to a comprehensive safety recall of two electric vehicles. Production downtime has since been extended twice. Battery packs in EVs consist of modules.


The recall, which includes all Chevy Bolt EV and EUV models made since 2017, was issued to the automaker after discovering two manufacturing defects in the battery cell — a cracked anode tab and folded separator — that pose a fire risk. can increase. The fire risk prompted GM to recommend Bolt owners to set the vehicle to the 90% position of the charge limit, avoid draining the battery below the 70 mile range, and charge the vehicle more frequently. GM still advises owners to park their Bolt EVs and EUVs outside immediately after charging and not to leave charging vehicles indoors overnight.

LG has new manufacturing processes and has worked with GM to improve its quality assurance programs to give its batteries confidence going forward. GM said the battery supplier will install these new processes at other facilities that supply cells to the automaker.

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Doug Parks, GM’s executive vice president of global product development, procurement and supply chain, said in a statement that resuming battery module production is the first step. However, GM’s Chevy Bolt EV problem isn’t completely solved. The company must complete the replacement process for all recalled Bolt and Assimilation owners that the vehicles are safe to charge and park.

GM is relying on the new advanced diagnostic software package to help. The company said that it will launch the software package in the next 60 days, which will have to be installed by the dealers. Diagnostic software is designed to detect specific abnormalities that may indicate a damaged battery in Bolt EV and EUV by monitoring battery performance.

According to GM, the software will alert customers of any discrepancy, adding that customers will be able to return to 100 percent status once all diagnostic procedures are complete.

GM, which aims to add 30 new EVs to its global lineup by 2030, must also secure the battery cells needed to power these vehicles. LG is its primary and long-standing partner in this effort. Parks said GM will continue to work aggressively with LG to obtain additional battery supplies.

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