Complete brake fluid flush on a 2024 Tesla Model Y Long Range AWD, replacing old DOT 3 fluid at all four calipers. Tesla recommends this service every 2 years regardless of mileage.

Warnings

Tools required

Parts

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

Fluids

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

Preparation

1. Park on level ground, place in P, and engage the parking brake.
2. Exit ALL doors with the key fob/phone key 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 12V low-voltage battery (located behind/under the rear seat area on Model Y — refer to architecture notes and the service manual for exact location on your build).
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
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. Confirm you have a sealed, unopened bottle of DOT 3 brake fluid sufficient for a full flush (~1 quart typical for a 4-wheel flush).
7. Place the vehicle in Jack Mode via the touchscreen BEFORE lifting (Service > Jack Mode) to disable suspension self-leveling messages and prevent the car from attempting to wake/move.
8. Loosen all four lug nuts slightly while wheels are on the ground.
9. Lift the vehicle at the manufacturer-specified jack points using Tesla-approved pucks; support on jack stands rated for EV weight.
10. Remove all four wheels and set them aside on the soft side to protect the finish.

Procedure

1. 1

   Inspect calipers and bleeders before starting
   Visually inspect all four calipers for leaks, damaged bleeder screws, and seized dust caps. Spray penetrating oil on bleeder screws if corroded and allow to soak. Confirm each bleeder breaks loose with a properly fitting box wrench before starting the flush — a snapped bleeder mid-flush is a major job.
   ⚠If a bleeder is seized, stop and resolve it before draining the reservoir. Do not force it.
2. 2

   Evacuate old fluid from the master cylinder reservoir
   Open the frunk and locate the brake fluid reservoir on the brake master cylinder/iBooster assembly. Clean around the cap thoroughly before opening to prevent debris ingress. Remove the cap and use a clean syringe or turkey baster to extract as much old fluid as possible from the reservoir. Wipe the inside of the reservoir clean with a lint-free towel — do NOT let any debris fall in.
   ⚠Do not drain the reservoir below the MIN line during bleeding — refill frequently.
3. 3

   Refill reservoir with fresh DOT 3 fluid
   Fill the reservoir to the MAX line with fresh, sealed DOT 3 brake fluid. Loosely set the cap on top (do not tighten yet) or attach your pressure bleeder per its manufacturer instructions.
4. 4

   Bleed the right rear caliper (farthest from master cylinder)
   The standard bleed sequence is farthest-to-nearest: RR → LR → RF → LF. Verify this sequence against the current Tesla Service Manual for your specific build. Attach a clear hose to the right rear bleeder screw with the other end submerged in catch fluid. Crack the bleeder open, allow old (typically darker) fluid to flow out under pressure or vacuum, and continue until clean, bubble-free fresh fluid emerges. Close the bleeder.
   ⚠Check reservoir level every 30 seconds — do not let it run dry.
   Torque spec

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

   Bleed the left rear caliper
   Repeat the bleed procedure at the left rear caliper. Continue flushing until clean fluid emerges with no air bubbles. Close the bleeder and refill the reservoir to MAX.
   Torque spec

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

   Bleed the right front caliper
   Move to the right front caliper. Repeat the flush until clean fluid emerges. Close the bleeder.
   Torque spec

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

   Bleed the left front caliper
   Finish at the left front caliper (closest to the master cylinder). Flush until clean fluid emerges with no air. Close the bleeder.
   Torque spec

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

   Final reservoir adjustment
   After all four corners are bled, set the reservoir level precisely between MIN and MAX (typically at MAX cold). Wipe any spilled fluid from surrounding components and rinse with water if any contacted painted or aluminum surfaces.
   Torque spec

   Master Cylinder Cap4 Nm (3 lb-ft)
9. 9

   Inspect bleeder screws and reinstall dust caps
   Confirm each bleeder screw is torqued correctly and not weeping. Reinstall the rubber dust caps on all four bleeders to prevent corrosion and debris ingress.
   ⚠Bleeder screws are easily snapped — do not exceed the listed torque.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)

Reassembly

1. Reinstall all four wheels. Hand-thread each lug nut to avoid cross-threading on the aluminum-friendly hub.
2. Lower the vehicle until tires just contact the ground, then torque the lug nuts in a star pattern to specification.
3. Fully lower the vehicle and re-torque lug nuts in star pattern as a final check.
4. Reconnect the 12V low-voltage battery.
5. Close the frunk and ensure the master cylinder cap is hand-tight to specification.
6. Exit Jack Mode via the touchscreen once the vehicle is powered up.

Verification

• With the vehicle powered on, press the brake pedal firmly several times — pedal should feel firm and consistent, not spongy. A spongy pedal indicates trapped air and may require a Tesla Toolbox-assisted ABS bleed.
• Check the touchscreen for any brake system warnings, ABS faults, or iBooster errors. Clear any transient messages and confirm no persistent DTCs.
• Inspect each bleeder screw and the master cylinder area for leaks after the first short drive.
• Perform a low-speed brake test in a safe area: confirm straight, even stopping with no pulling or pulsation. Test regen behavior and friction-brake blending at low speed.
• Log the service date and mileage — Tesla recommends brake fluid replacement every 2 years regardless of mileage. Set a reminder for the next interval.
• While wheels are off, this is also a good opportunity to rotate tires (Tesla recommends every 6,250 mi on Model Y due to high tire wear).

More procedures for this vehicle