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P1391 on TOYOTA PRIUS

Severity
Medium
NHTSA Reports
2
Most Affected
2010, 2012

What P1391 Means on Your TOYOTA PRIUS

Real TOYOTA PRIUS Owner Reports (Source: NHTSA Complaints Database)

"I brought my toyota prius to toyota dealer as abs alert was on and i lost controlling the brake. toyota dealer gave me an estimate for repair at $2,850."

— 2010 TOYOTA PRIUS owner • ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES • Filed 06/01/2020

"During a hard braking, felt brake pedal softer and less responsive braking. Now ABS Icon, Brake Icon, and Traction Icon is on. Confirmed Code P1391 in ABS system."

— 2012 TOYOTA PRIUS owner • SERVICE BRAKES • Filed 10/21/2022

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P1391 on TOYOTA PRIUS

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2010
1
2012
1

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P1391 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026