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RX 450h · Brakes
RX 450h Rear brakes Install Guide
Your RX 450h
Pick your year to see what fits.
New rotors and pads
Hard$80–$2001–2 hrs
Why do it
Fresh rear rotors and pads keep braking even and quiet.
Tools you'll need
- Jack and 4 jack stands
- Socket set
- C-clamp or piston tool
- Brake grease
- Brake cleaner
- Torque wrench
- Jack and 4 jack stands
- Socket set
- C-clamp or piston tool
- Brake grease
- Brake cleaner
- Torque wrench
Starting out? See our budget tool list.
Parts to buy
- Detroit Axle R-31544BK rear kit Rotors and ceramic pads.Fits 2010–2015
- Detroit Axle 4PR54942 rear kit Rotors and ceramic pads.Fits 2016–2022
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Before you start
- Pump the pedal until it's firm before you drive. Never let the caliper hang by its hose.
- Pump the pedal until it's firm before you drive. Never let the caliper hang by its hose.
Steps
Remove the caliper
- Take off the wheel and caliper bolts.
Remove the bracket and rotor
- Unbolt the bracket and pull the rotor.
Fit the rotor
- Clean the hub and adjust the parking brake.
Fit the pads
- Clean the bracket and fit the pads.
Reassemble
- Refit the caliper and wheel.
Prepare
- Lift the car and take off the wheel.
Retract the parking brake
- Retract the electric parking brake motor.
Remove the caliper and rotor
- Take them off.
Clean and lube
- Clean the parts and grease the pins.
Fit the pads
- Fit the pads and press the piston back.
Reassemble and test
- Put it all together and test.
How to know it worked
- Brake pedal is firm before the car moves.
- Bed the new pads in with several firm stops.
- No grinding or squealing.
- Brake pedal is firm before the car moves.
- Bed the new pads in with several firm stops.
- No grinding or squealing.
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Safety first
- Park on flat ground, set the parking brake and chock the wheels.
- Never get under a car held up only by a jack. Use jack stands.
- Let the engine and exhaust cool first.
- Disconnect the battery before unplugging electrical parts.
- Wear safety glasses.
- If something doesn't match your car, stop and ask a shop.
Follow your part's instructions and your service manual's torque specs.