🔧 Rear Brakes and Rotors - Replacement

This job replaces the rear brake pads and rear rotors on your Sienna. The rear rotor also contains the parking brake drum section, so you may need to back off the parking brake adjustment if the rotor is stuck.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• Work on a flat surface and chock the front wheels.
• Support the van with jack stands before removing any wheel.
• Do not press the brake pedal with a caliper removed.
• Use caution around brake dust; avoid blowing it off with compressed air.
• If the rotor will not slide off, the parking brake shoes may need to be adjusted down.
• No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated for vehicle weight)
• Wheel chocks
• 21mm socket
• 14mm socket
• Ratchet
• Torque wrench
• Brake caliper compression tool (specialty)
• C-clamp
• Flat blade screwdriver
• Rubber mallet
• Bungee cord or caliper hanger
• Brake cleaner
• Wire brush
• Hose
• Safety glasses
• Nitrile gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1
• Rear brake rotors - Qty: 2
• Brake hardware kit - Qty: 1
• Brake cleaner - Qty: 1 can

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📋 Before You Begin

• Park on level ground and engage the parking brake before lifting.
• Loosen the rear lug nuts slightly before raising the van.
• Release the parking brake before trying to remove the rotors.
• If the rotor is stuck, the parking brake shoe adjuster may need to be backed off through the access hole.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise and secure the rear of the van

• Use the floor jack to lift the rear of the Sienna at a safe lift point.
• Place jack stands under the rear support points and lower the van onto them.
• Remove the rear wheels with the 21mm socket.
• Keep the wheels under the vehicle for extra safety.

Step 2: Remove the caliper

• Use the 14mm socket to remove the caliper slide pin bolts.
• Lift the caliper off the bracket and hang it with a bungee cord or caliper hanger.
• Do not let the caliper hang by the brake hose.

Step 3: Remove the pads and bracket

• Slide the brake pads out of the bracket.
• Use the 14mm socket to remove the caliper bracket bolts.
• Remove the bracket from the knuckle.
• Mark left and right parts if you reuse hardware.

Step 4: Remove the rotor

• Pull the rotor straight off.
• If it is stuck, tap the rotor hat area with a rubber mallet.
• If it still will not come off, remove the rubber access plug and back off the parking brake adjuster with a flat blade screwdriver.
• Use brake cleaner on the hub face and clean rust with a wire brush.

Step 5: Prepare and install the new rotor

• Spray the new rotor with brake cleaner to remove shipping oil.
• Install the rotor on the hub.
• If the rotor has a retaining screw and yours is equipped, install it snugly.

Step 6: Install the caliper bracket and new pads

• Reinstall the caliper bracket using the 14mm socket.
• Torque to 79 ft-lbs (107 Nm).
• Install the new pads and hardware in the bracket.
• Apply a light coat of brake grease to pad contact points only if included in the hardware kit.

Step 7: Compress the caliper piston and reinstall the caliper

• Use a brake caliper compression tool or C-clamp to push the piston back in slowly.
• Make sure the piston face seats fully before installing the caliper.
• Reinstall the caliper with the 14mm socket.
• Torque to 25 ft-lbs (34 Nm).

Step 8: Reinstall wheels and lower the van

• Put the wheels back on and hand-tighten the lug nuts.
• Lower the Sienna off the jack stands.
• Use the 21mm socket to torque the lug nuts in a star pattern.
• Torque to 76 ft-lbs (103 Nm).

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✅ After Repair

• Press the brake pedal several times until it feels firm.
• Check brake fluid level in the master cylinder.
• Test the parking brake function.
• Do a slow test drive and make sure the brakes do not pull or scrape.
• New pads and rotors need a short break-in period; avoid hard stops for the first 200 miles.

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💰 DIY vs Shop Cost

Shop Cost: $450-$900 (parts + labor)

DIY Cost: $180-$350 (parts only)

You Save: $270-$550 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-4 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.