This procedure covers removal and replacement of a single front brake rotor on a 2016-2024 Hyundai Tucson with 2.5L I4 AWD engine, including caliper removal and proper torque specifications.

Warnings

Tools required

Parts

• Front brake rotor (single) × 1 — Use OEM specification or equivalent meeting Hyundai specifications
• Rotor set screws × 1 — Reuse if in good condition

Fluids

• DOT 4 Brake Fluid — 0.25 qt

Preparation

1. Park vehicle on level ground, engage parking brake, and place transmission in Park
2. Loosen front wheel lug nuts 1/4 turn while vehicle is on ground
3. Raise front of vehicle with floor jack at designated lift point and secure with jack stands under frame rails
4. Remove front wheel completely on side being serviced
5. Open brake fluid reservoir cap slightly to allow fluid movement during piston compression, then close loosely
6. Inspect brake system for fluid leaks, damaged hoses, or worn components before proceeding

Procedure

1. 1

   Remove caliper slide pin bolts
   Locate the two caliper slide pin bolts on the rear of the caliper assembly. Using a 17mm socket, remove both slide pin bolts completely. Keep these bolts as they will be reused. The caliper should now be free to pivot or lift off the rotor.
   Torque spec

   Caliper Slide Pin Bolts35 Nm (26 lb-ft)
2. 2

   Remove and support brake caliper
   Carefully lift the brake caliper assembly off the rotor and bracket. Do NOT disconnect the brake hose. Use a wire hanger or bungee cord to suspend the caliper from the suspension strut or control arm. Ensure there is no tension or stress on the brake hose. The caliper should hang freely without pulling on the hose connection.
   ⚠️Never let the caliper hang by the brake hose alone. This can cause internal hose damage and brake failure.
3. 3

   Remove caliper bracket
   Locate the two caliper bracket bolts securing the bracket to the steering knuckle. These are larger bolts typically requiring an 18mm socket. Remove both caliper bracket bolts completely. Remove the caliper bracket assembly from the knuckle. Note the position of any anti-rattle clips or shims for reinstallation.
   Torque spec

   Caliper Bracket Bolts102 Nm (75 lb-ft)
4. 4

   Remove rotor set screws
   If present, remove the Phillips head rotor set screw(s) securing the rotor to the hub. These screws may be corroded; use penetrating oil if necessary. If the screw is severely corroded or stripped, it may be drilled out carefully. These screws are not critical to rotor retention (the wheel holds the rotor in place during normal operation).
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
5. 5

   Remove old brake rotor
   Pull the brake rotor straight off the wheel hub. If the rotor is stuck due to corrosion, strike it from behind with a rubber mallet while rotating the rotor. Do not use excessive force that could damage wheel bearings. Avoid striking the rotor friction surface. If severely stuck, apply penetrating oil around the hub center and allow time to soak.
6. 6

   Clean hub and inspect components
   Use a wire brush to clean the wheel hub mounting surface, removing all rust and debris. Clean the hub pilot diameter where the rotor centers. Inspect the wheel hub for damage, excessive play, or leaking grease. Check caliper bracket mounting surfaces on the knuckle for damage or corrosion. This is a good time to inspect brake pads for remaining thickness.
7. 7

   Prepare new rotor for installation
   Remove the new rotor from packaging. Clean both friction surfaces thoroughly with brake parts cleaner to remove protective coating oil. Allow to dry completely. Apply a thin coat of anti-seize compound to the hub pilot diameter and center bore of the rotor (avoid getting anti-seize on friction surfaces).
   ⚠Failure to remove protective coating will cause reduced braking performance and potential brake noise or vibration.
8. 8

   Install new rotor
   Slide the new rotor onto the wheel hub, aligning the screw holes if equipped. Ensure the rotor seats completely flush against the hub surface. Install rotor set screw(s) if used and tighten to specification. The rotor should rotate freely on the hub without binding or excessive lateral movement.
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
9. 9

   Reinstall caliper bracket
   Position the caliper bracket over the rotor and align mounting holes with the steering knuckle. Install both caliper bracket bolts and hand-tighten. Verify the bracket is seated properly against the knuckle. Using a torque wrench and 18mm socket, torque both bracket bolts to specification in alternating pattern. Apply threadlocker to bolts as recommended.
   ⚠️Improperly torqued bracket bolts can cause catastrophic brake failure. Use a calibrated torque wrench.
   Torque spec

   Caliper Bracket Bolts102 Nm (75 lb-ft)
10. 10

    Compress brake caliper piston
    Before reinstalling the caliper, the piston must be compressed to accommodate the new rotor thickness. Using a brake piston compression tool or large C-clamp, slowly compress the piston fully into the caliper bore. Monitor the brake fluid reservoir for overflow and remove fluid with a turkey baster if necessary. Ensure the piston compresses evenly and smoothly.
    ⚠Compressing the piston pushes brake fluid back to the reservoir. Remove excess fluid to prevent overflow and paint damage.
11. 11

    Reinstall brake caliper
    Remove the caliper from its support wire. Clean the caliper slide pin bores and bracket contact surfaces. Apply silicone brake grease to the slide pins as specified. Position the caliper over the rotor and bracket, ensuring brake pads properly straddle the rotor. Align the slide pin bolt holes.
12. 12

    Install and torque slide pin bolts
    Install both caliper slide pin bolts by hand, ensuring they thread smoothly without cross-threading. Apply silicone brake grease to the slide pin bolt threads and contact surfaces. Using a torque wrench and 17mm socket, torque both slide pin bolts to specification. Verify the caliper moves freely on the slide pins without binding.
    ⚠️Slide pin bolts must be properly torqued and greased for correct caliper operation. Failure can cause uneven pad wear and reduced braking.
    Torque spec

    Caliper Slide Pin Bolts35 Nm (26 lb-ft)
13. 13

    Reinstall wheel and torque lug nuts
    Mount the wheel onto the hub, aligning lug holes. Install all lug nuts by hand to prevent cross-threading. Using a torque wrench, tighten lug nuts in a star pattern to specification. Lower vehicle slightly so weight is on the wheel but not fully on the ground for final torque verification.
    ⚠️Improperly torqued lug nuts can cause wheel detachment. Always use star pattern and calibrated torque wrench.
    Torque spec

    Wheel Lug Nuts140 Nm (103 lb-ft)
14. 14

    Pump brake pedal and check fluid level
    Before lowering the vehicle completely, sit in the driver's seat and pump the brake pedal several times until it becomes firm. The pedal should achieve normal height and firmness. Check the brake fluid reservoir and top off with DOT 4 brake fluid to the MAX line if needed. Do not overfill.
    ⚠️Do not attempt to move the vehicle until the brake pedal is firm. Pumping the pedal repositions the caliper piston against the new rotor.

Reassembly

1. Lower the vehicle completely to the ground and remove jack stands
2. Perform final torque verification on wheel lug nuts in star pattern with vehicle on ground
3. Securely tighten brake fluid reservoir cap
4. Clean any brake fluid spills or fingerprints from brake components and wheels

Verification

• Start the engine and pump the brake pedal multiple times, confirming firm pedal feel with no excessive travel
• Check brake fluid level in reservoir - should be at MAX line with no leaks visible
• Perform a low-speed brake test in a safe area (5-10 mph) to verify proper braking function before normal driving
• Listen for unusual noises during brake test - slight squealing during initial bedding is normal, grinding or metal-on-metal is not
• Perform several moderate stops from 30-40 mph to begin bedding-in the new rotor to the pads
• Visually inspect the repair area after test drive for any fluid leaks, loose components, or unusual conditions
• Avoid aggressive braking for the first 200-300 miles to allow proper rotor and pad break-in
• If the brake pedal feels soft, spongy, or travels excessively, or if the brake warning light illuminates, DO NOT DRIVE the vehicle and seek professional service immediately

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