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P0305 on Chevrolet Traverse

Cylinder 5 Misfire Detected

NHTSA Reports

Severity

medium

Most Affected

2009, 2011

Crashes / Fires

0 / 0

Source: NHTSA Complaints Database · SAE J2012

Last reviewed: Aug 7, 2026 Last updated: Aug 7, 2026

Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Chevrolet Traverse context without treating complaints as confirmed diagnoses.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0305.
NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What P0305 Means on Your Chevrolet Traverse

P0305 is a diagnostic trouble code indicating: Cylinder 5 Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 CHEVROLET TRAVERSE owners have reported this issue to NHTSA across model years 2009-2011. Most reports come from the 2009, 2011 model years. The most commonly reported component is Engine (50.0% of reports).

Real Chevrolet Traverse Owner Reports

Source: NHTSA Complaints Database

"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 2014-10-04

"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 2014-10-06

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

'09

'11

Common Causes on Chevrolet Traverse

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 50%

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC) 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.