# 2021 TESLA MODEL 3 — SERVICE BRAKES
> NHTSA complaint `2114549` · 2025-07-28 · Tesla, Inc.
## Severity
- **Deaths:** 0
- **Injured:** 1
- **Fire:** No
- **Crash:** Yes
- **Police report:** Yes
- **Medical attention:** Yes
- **Vehicle towed:** Yes
## Vehicle
- **Make:** TESLA
- **Model:** MODEL 3
- **Year:** 2021
- **Manufacturer:** Tesla, Inc.
- **Component:** SERVICE BRAKES
- **Speed:** 50 mph
## Narrative
On [Wednesday, 07/09/2025], I was driving my Tesla Model 3 in rainy conditions when the vehicle suddenly swerved and crashed into a sidewall. The road was wet but not flooded, and I was traveling at a moderate speed. As I lifted my foot off the accelerator to slow down, the car's regenerative braking system engaged abruptly, which I believe shifted weight forward and caused the rear tires to lose traction. This led to hydroplaning and complete loss of control.  There were no warning lights or alerts prior to the incident. The road surface did not have visible hazards or standing water that would typically explain a spinout. The tires were moderately worn but within usable limits.  As a result of the crash, the car was declared a total loss. The insurance company now has possession of the vehicle. Thankfully, no one was injured, but the crash was severe.  After the incident, I researched similar cases and found multiple reports and articles (e.g., AutoEvolution) linking Tesla’s regenerative braking to increased risk of hydroplaning or loss of control in wet or slippery conditions. The regen system eliminates coasting and applies braking force immediately upon throttle lift-off, which appears to be a safety risk in reduced-traction environments like rain, snow, or ice.  I believe this issue deserves investigation, as it may affect the safety of other Tesla drivers in similar weather conditions.
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*