The Detroit automaker has recalled all of the roughly 142,000 Bolts sold since 2016 because the battery can catch on fire. GM has taken a $1.8 billion charge so far for the cost of the recall and has been buying cars back from some disgruntled owners.
The company expects to recoup much of the cost from battery supplier LG Corp who caused the cock up.
However the new advice is likely to rankle owners who are already limiting their use of the Bolt to avoid overheating the battery and risking a fire.
The parking guidance -- recommending a distance of 50 feet from other parked cars -- is especially difficult for owners in urban areas. GM has confirmed 10 fires.
The National Highway Traffic Safety Administration said the agency has found 13 fires in Bolts, but the company hasn't confirmed the additional three are part of the current recall issue.
The Bolt normally can go 259 miles on a charge, but that has been limited by GM's guidance to avoid a fire. The automaker told Bolt owners to limit the charge to 90 percent, plug in more frequently and avoid depleting the battery to below about 70 miles of remaining range.
They're also advised to park their vehicles outside immediately after charging and not leave them charging indoors overnight. The company will be telling Bolt owners who are concerned about parking in public places that it recommends keeping 50 feet from other cars in garages and lots, spokesman Dan Flores said.