How to Service Brakes on a Hybrid

Doing a brake job on a hybrid is largely the same as on a gas car - the friction brakes are conventional. But there are a few hybrid-specific steps to know before you start. Here is how to service hybrid brakes safely.

The friction brakes are normal

A hybrid still has ordinary calipers, pads, and rotors that you service with the usual tools; see how disc brakes work. The pads often last a long time because regen does most slowing - see how regen braking works - but they still wear and can seize or rust.

Maintenance mode and regen

Some hybrids need a maintenance or "brake service" mode entered with a scan tool before you compress the caliper pistons, because the electronic brake system can move fluid on its own. Check the service procedure for your model, and be cautious around the high-voltage orange cables - though the brake hydraulics themselves are not high voltage.

Watch for rust, not just wear

Because hybrid rotors run cool and are used lightly, they often rust more than they wear; see brake rotor rust prevention. Inspect for sticking calipers and clean surface rust. A pad that has sat glazed may need replacing even with material left.

Finish normally

Torque to spec, replace hardware, bleed if needed, and bed in the new pads. Use fresh fluid on schedule; see hybrid brake fluid. Fit quality pads and hardware.