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P0300 on CHEVROLET TRAVERSE

Severity
Medium
NHTSA Reports
8
Most Affected
2009, 2012, 2011

What P0300 Means on Your CHEVROLET TRAVERSE

Real CHEVROLET TRAVERSE Owner Reports (Source: NHTSA Complaints Database)

"Merging onto highway. engine misfiring resulting in violent shaking of vehicle and loss of power in a high speed traffic situation. very dangerous. same problem one year ago. both times cause was faulty ignition coil. codes p0300."

— 2009 CHEVROLET TRAVERSE owner • ENGINE • Filed 11/08/2017

"The vehicle began sputtering when traveling from 20-25 miles per hour & when driving up an incline. engine light came on. onstar said there were 7 fault codes. the primary code was p0300, indicating an emissions issue. issue started days after transmission was replaced."

— 2009 CHEVROLET TRAVERSE owner • POWER TRAIN,ENGINE • Filed 12/27/2016

"Driving on a highway went to change lane. while accelerating the car started to shake, buck and slow down. engine light came on. brought it to the dealer found intermittent code p0306. performed emission service. happened again 60days later. back to the dealer found code p0305 and p0306."

— 2009 CHEVROLET TRAVERSE owner • ENGINE • Filed 10/04/2014

"The first time this happened, i was driving a hilly back road from school the service stabilitrac and traction control warning lights came on then the engine power is being reduced warning light came on and the car immediately slowed to a crawl with very little steering control."

— 2011 CHEVROLET TRAVERSE owner • ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC) • Filed 10/06/2014

"My wife was driving on the highway when it lost significant power and started rattling violently. she was able to pull into a business parking lot. stabilitrak system, traction control, check engine lights all came on."

— 2012 CHEVROLET TRAVERSE owner • ENGINE • Filed 12/06/2019

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

Common Causes of P0300 on CHEVROLET TRAVERSE

50%
12.5%
12.5%
12.5%
12.5%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2009
3
2011
1
2012
2
2014
1
2025
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.

P0300 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