BUY

Cracked and bent factory wheels: 2014-2019 C7 owners report the cast-aluminum wheels -- especially the wide rear wheels on the Z06 and Grand Sport -- cracking or bending during normal road driving with no pothole strike, producing slow leaks or a sudden loss of tire pressure at speed. GM has frequently declined bumper-to-bumper coverage, treating it as road damage. Wheels are the single largest C7 complaint category by volume in the corpus.

Check — Inspect every wheel, including the inner barrel, for cracks and bends; check for slow leaks and for prior wheel replacement or repair (welded rims). Budget wheels as a recurring cost on hard-driven cars.