🔧 FixIt
🟡

P0171 on TOYOTA RAV4

Severity
Medium
NHTSA Reports
4
Most Affected
2007, 2015, 2019

What P0171 Means on Your TOYOTA RAV4

Real TOYOTA RAV4 Owner Reports (Source: NHTSA Complaints Database)

"First noticed the problem on 11/10/2014 when approaching a stop light. the rav4 took longer than normal to come to a stop with greater force required to stop. once fully stopped, the vehicle was idling with low rpm's (~500) and the check engine light turned on along with vsc and trac lights."

— 2007 TOYOTA RAV4 owner • VEHICLE SPEED CONTROL,SERVICE BRAKES,FUEL/PROPULSION SYSTEM • Filed 11/10/2014

"Ongoing issues with my fuel system. car will display one of these many symptoms: -misfire, hard start, stall or shutoff. other symptoms include car stuttering and stalling out while driving. this last symptom is very dangerous as it often comes with no warning."

— 2015 TOYOTA RAV4 owner • UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM • Filed 05/22/2020

"Sudden, unexpected, surprise Surging Idle upon placing the vehicle in Park after driving a 15 minute distance at a top speed of 35mph. Loud Surge up to 2.5 (x1000RPM) Sounds like the Engine Shifted Idle Drops down and immediately begins Surging up again. Idle is high while driving."

— 2019 TOYOTA RAV4 owner • FUEL/PROPULSION SYSTEM • Filed 06/16/2025

"I was driving home in the rain for about 75 minutes and when I arrived in my driveway I saw steam coming from the front grille area. It wasn't due to a high engine coolant temperature so I decided to carefully open the hood and check for the source."

— 2022 TOYOTA RAV4 owner • ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM • Filed 02/20/2026

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 RAV4

25%
25%
25%
25%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2007
1
2015
1
2019
1
2022
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.

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