The brake master cylinder is the first component in a vehicle’s braking system, activated by depressing the brake pedal. The pedal pushes a piston through this cylinder, forcing brake fluid ...

Chevy Trax units will need a master brake cylinder replacement to correct reduced brake performance, according to a recent GM service update.

The fix: Ford dealerships will replace the brake master cylinder and, if necessary, the brake booster. The repair is free of charge. How to contact the manufacturer: Owners may contact Ford at ...