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moderate 70 complaints filed with NHTSA · avg repair $450 · see brakes across all vehicles →
Among the 6 model years of Tesla Model 3 in our records for brakes problems, this one ranks #2 by owner-complaint volume.
Contact with the rim may cause a loss of tire pressure, increasing the risk of a crash.
The manufacturer has issued service bulletins covering brakes on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
On certain Model 3 vehicles, brake lines may be corroded beyond acceptable limits, which may result in loss of brake fluid. Loss of brake fluid will result in a customer facing alert if the fluid reaches the predetermined level to trigger an alert. Upon customer complaint of a low brake fluid alert, evidence of a brake fluid leak, or a failed periodic roadworthiness inspection, inspect the brake lines. If corrosion is found on any of the brake lines, replace all brake lines on the vehicle with new corrosion-resistant parts, in one combined repair. NOTE: Due to dual reduncancy, vehicle safety is not impacted by corrosion on the brake lines.
full bulletin at NHTSA ↗On certain Model 3 vehicles, brake lines may be corroded beyond acceptable limits, which may result in loss of brake fluid. Loss of brake fluid will result in a customer facing alert if the fluid reaches the predetermined level to trigger an alert. Upon customer complaint of a low brake fluid alert, evidence of a brake fluid leak, or a failed periodic roadworthiness inspection, inspect the brake lines. If corrosion is found on any of the brake lines, replace all brake lines on the vehicle with new corrosion-resistant parts, in one combined repair. NOTE: Due to dual reduncancy, vehicle safety is not impacted by corrosion on the brake lines.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
Owners report sudden, hard braking with no obstruction in front of the vehicle while using adaptive cruise control, traffic-aware cruise control, or autopilot features. These incidents occur on highways, interstates, and secondary roads at speeds of 40–85 mph, often without warning. Deceleration rates are dramatic—some owners describe drops from 70–80 mph to 20–45 mph in seconds, jarring occupants forward violently. Incidents cluster around specific road conditions: cresting hills with no vehicles visible ahead, passing under overpasses (owners suspect the camera misreads overhead shadows as road markings), and in the presence of oncoming traffic on divided highways (the system may misidentify approaching vehicles as obstacles).
Owners use the term "phantom braking" to describe the behavior. Most incidents occur during daylight; a few reports note milder events at night. The malfunction is intermittent and unpredictable, happening zero to five-plus times per trip with no consistent trigger. Some owners with radar-equipped vehicles report the issue; others specifically note their vehicle uses Tesla Vision (camera-only, no radar) and the problem persists. Owners report attempting to use Tesla's bug-report feature and contacting service centers with dashcam timestamps, but Tesla service responses typically involve short test drives (15 miles) concluding no issue was found, followed by camera recalibration or no action. One owner reported Tesla service stating the behavior is "normal." Collision risk is high when traffic follows closely, and multiple owners narrowly avoided rear-end accidents.
Same Tesla Model 3 brakes reports on nearby years: 2018 · 2019 · 2020 · 2022 · 2023
Vehicle applies hard brakes while in adaptive cruise control, traffic-aware cruise control, or autopilot (with or without autosteer) on clear roads with no vehicle or obstacle ahead. Deceleration is sudden and severe, often 20–50 mph in seconds. Event occurs without warning, alert, or on-screen indication of an obstacle. Owners report dozens to hundreds of instances over months of ownership.
When: Reported from early ownership (as early as 2,000 miles) through 5+ years of use; incidents documented August 2021 onward for model year 2021 vehicles; frequency ranges from sporadic to 5+ times per 6-hour drive.
Symptoms owners cite: Hard, sudden braking with no vehicle or object ahead; Deceleration of 20–50 mph within 1–2 seconds at freeway speeds; No warning chime, alert, or on-screen warning before event; Vehicle disengages cruise control or autopilot after braking; Passengers thrown forward; one report of shoulder pain from seatbelt; Occurs on empty roads, daytime and nighttime, divided and undivided highways
Repairs/costs cited: Tesla service attempted camera recalibration on multiple vehicles; one owner reported independent service center removed a loose brake backing plate screw from brake disk and retightened it.
Recalls/TSBs owners mention: Tesla service test-drove vehicles for 15 miles, stated they could not replicate the issue, and performed camera recalibration or requested more recent timestamps. One owner reported Tesla service told them the behavior is 'normal.' No recalls or TSBs mentioned in narratives.
Vehicle applies hard brakes when cresting a hill with no visible traffic ahead, or when passing under an overpass. Owners suspect the camera system cannot see over hills and misinterprets shadows beneath overpasses as road markings. On camera-only (Tesla Vision) vehicles, this is repeatable behavior.
When: Reported from 2021 model year onward; incidents include a specific case on SR95 Arizona at 65 mph, and repeated occurrences on rolling freeways in Oregon, Nevada, and throughout the western U.S.
Symptoms owners cite: Hard braking when cresting a hill on a rolling highway with no vehicles visible ahead; Hard braking when passing beneath an overpass; one owner noted sunny day and suspected shadow interpretation; Deceleration of 15–20 mph (e.g., 80–60 or 65–45 mph); Repeatable on the same stretch of road; one owner noted normal adjustment for curves occurs in the same spot each time, but phantom braking is unpredictable; Occurs on interstate and secondary highways
Vehicle applies brakes and may sound collision warning when oncoming traffic (especially large vehicles such as semi-trucks) appears in the opposite lane, or when passing a semi-truck in a multi-lane setting. Owners report the system appears to misidentify approaching vehicles as a collision threat.
When: Reported on two-lane and four-lane highways with oncoming traffic; one case on a four-lane highway while passing a semi-truck in the left lane.
Symptoms owners cite: Hard, sudden braking when oncoming traffic or semi-trucks visible in opposite lane; Forward collision warning audio and/or visual alert without actual collision risk; Rapid deceleration during passing maneuvers (e.g., while changing lanes to pass a semi-truck); Occurs nearly every time cruise control is used in these conditions
Vehicle applies hard braking and displays alert claiming emergency vehicles are present when no emergency vehicle is on the roadway or visible to the driver.
When: Reported on highways during daytime; one owner reported 10+ instances per day over a multi-day trip.
Symptoms owners cite: Hard braking while on cruise control or autopilot; On-screen display states 'emergency vehicles' present; No emergency vehicle visible or audible; Deceleration of 20+ mph; Occurs 10+ times per day
When autopilot lane-change feature is engaged, vehicle shakes or 'fishtails' violently. Additionally, the autosteer prompt to change lanes may repeat repeatedly even when driver dismisses it, creating distraction.
When: Reported during use of autopilot lane-change feature.
Symptoms owners cite: Violent shaking or fishtailing sensation during lane changes; Lane-change prompt repeats multiple times despite dismissal; Distraction to driver
In one incident, while the driver was applying the brakes to slow for traffic, the brake pedal appeared to floor itself without driver input, and brakes locked. Driver's foot lost contact with brake pedal but braking force remained engaged. In another, the vehicle failed to respond to driver braking input at low speed and collided with property.
When: One incident during traffic slowdown; one incident at low speed in driveway.
Symptoms owners cite: Brake pedal floors without driver input or foot contact; Brakes lock while pedal is disengaged; Vehicle fails to respond to brake input and continues forward at low speed; Collision resulted in one case (airbags deployed, vehicle totaled)
Repairs/costs cited: One case resulted in total vehicle loss; no repair attempted.
Synthesized from 70 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
It's a documented issue but not catastrophic. 70 complaints have been filed. Repairs average $450 and most owners catch it before it causes a breakdown.
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover brakes issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.