Brake Bleed - All Four

Complete brake fluid bleed on all four corners of the 2024 Cybertruck Cyberbeast. This is a routine 2-year service interval item per Tesla's published maintenance recommendations.

Warnings

Tools required

Parts

• Bleeder screw dust caps (replace if damaged) × 4 — OEM specification

Fluids

• DOT 3 Brake Fluid (sealed, fresh container) — 1 qt

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 48V low-voltage battery per Tesla's documented Cybertruck procedure. Note: this is 48V, not 12V — use proper PPE and rated tools.
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal (800V on Cybertruck).
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. Place the vehicle in Service Mode via the touchscreen BEFORE disconnecting low-voltage power, if available, to disable air suspension auto-leveling and prevent regenerative/parking interventions.
7. Disable air suspension auto-leveling / set to Jack Mode in the vehicle settings before lifting.
8. Verify a fresh, sealed container of DOT 3 brake fluid is on hand. Do not substitute DOT 5 (silicone-based).
9. Loosen wheel lug nuts slightly while tires are on the ground.
10. Lift vehicle at manufacturer-specified jack points and support on rated jack stands. Cybertruck curb weight exceeds 6,600 lb — use equipment rated accordingly.
11. Remove all four wheels.

Procedure

1. 1

   Inspect brake system
   Visually inspect all four calipers, rotors, flexible brake hoses, and hard lines for leaks, cracks, or damage. Confirm no fluid is weeping at any caliper, hose junction, or the master cylinder/iBooster assembly. Address any leaks before bleeding.
2. 2

   Extract old fluid from reservoir
   Open the brake fluid reservoir cap (located in the front trunk area — refer to service manual for exact location). Use a clean syringe or turkey baster to remove the old, dark fluid down to the MIN line. Do not let it run empty. Refill with fresh DOT 3 to the MAX line.
   ⚠Use a dedicated brake fluid extractor — never one used for other fluids. Contamination will damage seals.
3. 3

   Connect pressure bleeder (recommended)
   Attach a pressure bleeder to the master cylinder reservoir per the bleeder manufacturer's instructions. Pressurize to 10-15 psi (or per bleeder spec — do not exceed reservoir cap rating). A pressure bleeder is strongly recommended on Cybertruck due to the iBooster-style brake system.
   ℹ️If using gravity or two-person pump bleeding instead, monitor reservoir level constantly.
4. 4

   Bleed right rear caliper
   Start at the wheel furthest from the master cylinder (typically right rear). Remove the bleeder dust cap, attach a clear hose to the bleeder screw, and route into a catch bottle with fresh fluid in the bottom (hose tip submerged). Crack open the bleeder screw and allow fluid to flow until clear, bubble-free fluid appears. Close the bleeder.
   ⚠Confirm bleed sequence with the Tesla Service Manual for Cybertruck — the correct sequence may differ from traditional RR-LR-RF-LF order.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
5. 5

   Torque right rear bleeder screw
   Snug the bleeder screw and torque to specification. Do not overtighten — the screw is hollow and easily damaged. Reinstall the dust cap.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
6. 6

   Bleed left rear caliper
   Repeat the bleed process at the left rear caliper. Continue until clear, bubble-free fluid is observed. Monitor the reservoir level continuously and top up as needed.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
7. 7

   Bleed right front caliper
   Move to the right front caliper. Cybertruck front calipers are large performance units (Cyberbeast spec) — they may hold more fluid than typical. Bleed until clear fluid flows with no bubbles.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
8. 8

   Bleed left front caliper
   Bleed the left front caliper last (closest to master cylinder in typical sequence). Confirm clear, bubble-free flow. Close and torque the bleeder screw.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
9. 9

   ABS/iBooster module bleed (if applicable)
   For a complete fluid replacement, the ABS modulator and iBooster internal circuits should be cycled. This typically requires Tesla diagnostic software to actuate the ABS solenoids during bleeding. If you do not have this capability, the manual bleed will refresh the majority of the fluid but not the modulator volume.
   ℹ️If a hard pedal is not achieved after manual bleeding, the ABS/iBooster likely needs an actuated bleed via Tesla service tooling.
10. 10

    Final reservoir top-up
    Disconnect the pressure bleeder. Top up the reservoir to the MAX line with fresh DOT 3. Reinstall the reservoir cap securely.

Reassembly

1. Wipe down each caliper bleeder area to remove any spilled fluid.
2. Reinstall all four wheels. Hand-thread lug nuts to prevent cross-threading.
3. Lower vehicle to the ground.
4. Torque wheel lug nuts in a star pattern to specification.
5. Reconnect the 48V low-voltage battery using proper sequence and rated tools.
6. Exit Service Mode / re-enable air suspension if it was disabled.
7. Cycle the ignition and allow the vehicle to fully boot.

Verification

• With vehicle powered on, press the brake pedal multiple times. Pedal should be firm and high — no sponginess. A soft pedal indicates remaining air, often in the ABS/iBooster module.
• Check the dash for any ABS, brake, or stability control warning lights. None should be present.
• Inspect every bleeder screw, hose fitting, and the reservoir for leaks.
• Confirm reservoir level is at MAX after the system is powered and pressurized.
• Perform a low-speed road test in a safe area (5-15 mph) with light brake applications first, then progressively firmer stops. Brake response should be linear and confident.
• Verify no regenerative braking or stability control faults appear on the touchscreen during the test drive.
• Log the service date — Tesla recommends brake fluid replacement every 2 years regardless of mileage. Next service due 24 months from today.
• If pedal feel is not firm or warning lights persist, perform an actuated ABS/iBooster bleed using Tesla diagnostic software, or refer the vehicle to a Tesla-certified technician.

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