A number of analysts are predicting that General Motors’ June U.S. sales will underperform the overall auto industry, putting the company in danger of losing market share at a critical time.

GM has issued 44 recalls covering 20 million cars and trucks this year as it undergoes a top-to-bottom safety review in the wake of a mishandled recall of small cars. So far, GM has announced or taken charges totaling $2 billion to cover recall costs.