GM is strengthening the Volt's battery pack to prevent coolant leaks in accidents.
Ironically, the liquid coolant that keeps the Volt's lithium-ion battery from overheating on the road is likely what caused it to catch fire three weeks after a crash test. But Volt drivers don't have to worry about coolant catching flame in the same way they might worry about gasoline spills. A source briefed on the Volt's investigation told the Associated Press that crystallized coolant resulted in an electrical short, causing the battery to catch fire.
The National Highway Transportation Safety Administration has been … Read more