In June 2017, months after General Motors Co. beat Tesla Inc. to market with an affordable, long-range electric vehicle, it took out full-page newspaper ads touting how long its Chevrolet Bolt could travel between charges. The tagline: ¡°Begin a long-distance relationship, now.¡±

Four years later, the long-distance relationship between GM and its battery partner, LG Energy Solution, is being tested like never before. At issue: who will pick up a roughly $1 billion tab.

GM last week recalled Bolt EVs for the third time in nine months because of the risk their batteries could catch fire. The Detroit-based company will replace modules in more than 73,000 additional vehicles and said it¡¯s trying to get LG to pay for the fix. LG, headquartered some 6,600 miles away in Seoul, said the expense will be divvied up depending on the results from a joint investigation into the root cause of the problem.