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P0171 on TOYOTA HIGHLANDER

Severity
Medium
NHTSA Reports
2
Most Affected
2019

What P0171 Means on Your TOYOTA HIGHLANDER

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

"Vehicle hesitates and sputters upon acceleration, loss of power, and stalls during operation. Trouble codes P0191, P0171, P0174, and P0107B have generated in combination."

— 2019 TOYOTA HIGHLANDER owner • FUEL/PROPULSION SYSTEM • Filed 03/08/2026

"Vehicle check engine turned on to check AWD system after about 2 days when filling with gas the engine wouldn't start and had Low brake power message on dashboard."

— 2019 TOYOTA HIGHLANDER owner • UNKNOWN OR OTHER,SERVICE BRAKES,FUEL/PROPULSION SYSTEM • Filed 06/06/2023

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

Common Causes of P0171 on TOYOTA HIGHLANDER

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2019
2

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.

P0171 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