SAN FRANCISCO (MarketWatch) -- General Motors Corp. said Tuesday that it is bringing back its employee-discount program, an effort to keep the momentum humming after blowout June sales.

The rules for GM, Ford and FCA employee discount plans, including which family members and vehicles qualify, are often changing and vary by automaker.

The rules for GM, Ford and FCA employee discount plans, including which family members and vehicles qualify, are often changing and vary by automaker.