Grinding brakes on your 2021 Chevrolet Equinox after collision repair suggest something went wrong during the repair process - brakes should work normally after body repair unless they were directly damaged. This new grinding requires immediate investigation.
How Body Repair Can Affect Brakes
Wheel removal and reinstallation during body work can introduce problems. Rotors may have surface rust from sitting that needs to wear off or be cleaned. Brake dust shields can be bent during work and now contact the rotor. Caliper brackets may have been loosened and not properly torqued. Pads may have been contaminated with oil, grease, or paint overspray.
Direct Collision Damage
If the collision involved the wheel area, brake components may have sustained hidden damage. Rotors can be warped from impact. Calipers can have internal damage affecting operation. Brake lines may have been kinked. The ABS sensor may have been damaged, causing ABS cycling that feels like grinding.
Diagnostic Approach
Remove the wheel and visually inspect the brake assembly. Look for obvious contact between dust shield and rotor. Check pad thickness and condition - contamination appears as glazed, shiny surfaces. Spin the rotor by hand to feel for warping or grinding. Verify caliper bracket torque specifications.
Addressing the Problem
If the grinding is repair-related and not from direct collision damage, the body shop should address it as part of proper repair completion. Document the issue and return promptly. If brakes were damaged in the collision, ensure this is added to the insurance claim.