🔧 Blazer - Rear Brake Pad Replacement

Replacing the rear brake pads on your Blazer means lifting the rear, removing the rear calipers, swapping pads/hardware, and reinstalling everything with the correct torque. The big “gotcha” is the parking brake: if your rear calipers have an electric motor on them, the electronic parking brake (EPB) must be put into service mode before you compress the pistons.

Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours

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⚠️ Safety & Precautions

• 🛑 Work on level ground and support the Blazer with jack stands—never rely on a jack.
• 🛑 If equipped with EPB calipers (electric motor on the caliper), do not force the piston in without EPB service mode.
• 🛑 Brake dust is harmful—use brake cleaner, not compressed air.
• 🛑 Watch the brake fluid reservoir level while compressing pistons (it can overflow).
• 🛑 Keep grease off pad friction material and rotor surfaces.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Nitrile gloves
• Breaker bar (1/2" drive)
• Torque wrench (10-250 ft-lbs range)
• 21mm socket
• 13mm socket
• 18mm socket
• Ratchet (3/8" drive)
• Ratchet (1/2" drive)
• Flat-blade screwdriver
• Caliper piston compression tool (specialty)
• Brake caliper hanger hook (specialty)
• Wire brush

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1
• Rear brake pad hardware kit (abutment clips) - Qty: 1
• Brake parts cleaner - Qty: 1
• Silicone brake lubricant - Qty: 1

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📋 Before You Begin

• Park on level ground, wheels straight, and place wheel chocks at the front wheels.
• Make sure the parking brake is OFF before lifting the rear.
• Open the hood and locate the brake fluid reservoir. Don’t remove it yet—just be ready to monitor the level.
• If your rear calipers have an electric motor on them (EPB), plan to use an EPB service mode (scan tool path is the safest).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen lug nuts and lift the rear

• Use a 21mm socket and breaker bar to loosen the rear wheel lug nuts 1/2 turn (do not remove yet).
• Lift the rear with the floor jack at the proper rear jacking point, then set the Blazer securely on jack stands.
• Remove the wheels using the 21mm socket.

Step 2: Identify whether you have EPB calipers

• Look at the rear brake caliper. If you see a small electric motor module on the caliper, you have EPB (electronic parking brake).
• EPB calipers must retract electronically first.

Step 3: Put the EPB into service mode (if equipped)

• Path A (recommended): Scan tool method
• Connect a capable scan tool and run the EPB function to retract/enter service mode (often labeled “Brake Pad Service Mode” or “EPB Retract”).
• Path B: If you do NOT have EPB calipers
• Skip this step and continue to Step 4.

Step 4: Remove the caliper (slide pin bolts)

• Turn the steering slightly if needed for access, but keep the Blazer stable on jack stands.
• Use a 13mm socket and ratchet (3/8" drive) to remove the two rear caliper guide/slide pin bolts.
• Lift the caliper off the bracket.
• Support the caliper using a brake caliper hanger hook (specialty). A caliper hanger is a hook that holds the caliper so the brake hose isn’t stretched.

Step 5: Remove old pads and hardware

• Pull the inner and outer pads out of the bracket by hand.
• Remove the stainless pad clips (abutment clips) from the bracket using a flat-blade screwdriver.
• Clean the bracket pad lands with a wire brush, then spray with brake parts cleaner.

Step 6: Compress the caliper piston

• Check the brake fluid reservoir under the hood. If it’s near “MAX,” be ready for the level to rise.
• Use a caliper piston compression tool (specialty) to slowly press the piston fully back into the caliper.
• If the piston will not compress smoothly, stop and re-check EPB service mode (Step 3).

Step 7: Install new hardware and pads

• Install the new pad clips into the bracket by hand.
• Apply a thin film of silicone brake lubricant where the pad ears contact the clips. Keep grease off the pad friction surface.
• Install the new inner and outer pads into the bracket.

Step 8: Reinstall the caliper

• Set the caliper over the new pads.
• Install the caliper guide/slide pin bolts by hand first, then tighten using the 13mm socket and ratchet (3/8" drive).
• Final tighten with a torque wrench: Torque to 34 Nm (25 ft-lbs).

Step 9: Reinstall wheels

• Reinstall the wheels and hand-thread all lug nuts.
• Lower the Blazer to the ground using the floor jack.
• Tighten lug nuts in a star pattern with a torque wrench: Torque to 190 Nm (140 ft-lbs).

Step 10: Exit EPB service mode (if equipped)

• Use the scan tool to command the EPB to close/initialize after pad replacement.

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✅ After Repair

• With the Blazer in Park, press the brake pedal slowly 10-15 times until it feels firm. This seats the pistons against the new pads.
• Check brake fluid level and adjust to the correct mark if needed.
• Test the EPB apply/release (if equipped) and confirm no warning messages.
• Road test at low speed first. Listen for grinding and confirm normal braking.
• Avoid hard stops for first 200 miles.

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💰 DIY vs Shop Cost

Shop Cost: ₹6,000-₹14,000 (parts + labor)

DIY Cost: ₹2,500-₹7,000 (parts only)

You Save: ₹3,500-₹7,000 by doing it yourself!

Shop labor rates vary. This repair takes a shop approximately 1.5-3.0 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.