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P0299 on HONDA ACCORD

Severity
Medium
NHTSA Reports
4
Most Affected
2018, 2019, 2020

What P0299 Means on Your HONDA ACCORD

Real HONDA ACCORD Owner Reports (Source: NHTSA Complaints Database)

"While accelerating uphill approximately 65 mph the car suddenly started to shutter and slow down to 35 mph. I forced me to move rapidly over to the right lane on a busy highway almost getting hit by a semi truck. Luckily I was able move to the shoulder and park the vehicle."

— 2018 HONDA ACCORD owner • ENGINE,FUEL/PROPULSION SYSTEM • Filed 06/13/2025

"Scanned for codes. Found P0303, P0299, and P2243 stored. Found coolant entering cylinder 3. Found excessive play in the waste gate rod and found A/F sensor is not responding. Needs head gasket. Vehicle starts up and runs rough. All alerts on alerts on dash on cust states check engine light on."

— 2018 HONDA ACCORD owner • POWER TRAIN,ELECTRICAL SYSTEM,ENGINE • Filed 02/17/2025

"The turbo! Code P0299! Hundreds of thousands of Americans going through the same issue all their lights are flashing on their dashboard with these 1."

— 2019 HONDA ACCORD owner • ELECTRICAL SYSTEM,ENGINE • Filed 03/05/2026

"Subject: Turbocharger Underboost – Safety Concern on 2020 Honda Accord EX-L I am reporting a serious safety issue with the turbocharger system on my 2020 Honda Accord EX-L with the 1.5L turbocharged engine."

— 2020 HONDA ACCORD owner • ENGINE • Filed 04/20/2025

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

Common Causes of P0299 on HONDA ACCORD

25%
25%
25%
25%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2018
2
2019
1
2020
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.

P0299 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