Fitment For 2003-2008 Pontiac Vibe（Metal Piston) For 2003-2008 Toyota For Corolla（Metal Piston) For 2003-2008 Toyota Matrix（Metal Piston) When to Replace Brake Calipers? Over time in normal driving conditions, the heat generated from the braking system can weaken and break down seals inside the calipers. They can become rusty, contaminated or dirty, and start to leak brake fluid if you don’t drive regularly. However, you should have your brakes checked immediately if you experience any of the following: .
