P0306 — Cylinder 6 misfire detected.

Code P0306 is a standard OBD-II diagnostic trouble code: Cylinder 6 misfire detected.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0306 across 46 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0306 46 patterns

2021 Chevrolet Tahoe

powertrain — Engine Catastrophic Failure – Internal Mechanical Breakdown

2020 GMC Sierra

powertrain — Engine Lifter / Camshaft Failure

2019 Chrysler Pacifica

engine — Head gasket failure with coolant leakage into cylinders

2018 Chrysler Pacifica

engine — Head gasket failure with coolant intrusion

2018 Chrysler Pacifica

powertrain — Engine misfire and head gasket failure

2018 Ford Edge

powertrain — Coolant intrusion into cylinders (2.0L EcoBoost engine)

2018 Hyundai Santa Fe

engine — Fuel Injector Failure (Bank 2)

2017 Acura RDX

electrical — Loss of power / engine cutout with all warning lights

2017 Audi Q7

engine — Excessive engine oil consumption

2017 Chrysler Pacifica

engine — Head Gasket Failure with Coolant Loss into Cylinders

2017 Dodge Grand Caravan

engine — Cylinder head warping and misfire (primarily cylinder #2)

2017 GMC Sierra

powertrain — AFM Lifter Failure (5.3L and 6.2L Engines)

2017 Honda Ridgeline

engine — Connecting Rod Bearing Failure

2017 Kia Sedona

engine — Rod Bearing Failure / Connecting Rod Damage

2016 Acura MDX

engine — Connecting Rod Bearing Failure / Engine Seizure

2016 Acura MDX

powertrain — Engine rod bearing failure (connecting rod bearing seizure)

2016 Kia Sedona

engine — Engine seizure due to oil starvation with non-functional low oil pressure warning

2016 Kia Sorento

powertrain — Engine Seizure / Rod Bearing Failure

2015 Dodge Durango

engine — Cylinder misfire—persistent after component replacement

2015 Jeep Wrangler

engine — Cylinder Head and Valve Failure

2015 Toyota Highlander

electrical — Engine Stall and Loss of Power

2014 Buick Enclave

powertrain — Transmission hard shift / shudder / jerking

2014 Dodge Grand Caravan

powertrain — Ignition misfire and cylinder-specific failures

2014 Mercedes-Benz E-Class

engine — Fuel injection misfires (Cylinder 5)

2013 Chrysler Town and Country

engine — Cylinder Misfire (Multiple Cylinders)

2013 Dodge Grand Caravan

engine — Cylinder head damage and cracking

2013 Jeep Wrangler

engine — Cylinder head warping and compression loss

2013 RAM 1500

powertrain — Cam lobe failure / misfire codes

2012 Chrysler Town and Country

engine — Cylinder misfire - persistent and recurring

2012 GMC Acadia

engine — Timing chain failure

2012 Jeep Wrangler

powertrain — Rough Idle, Engine Misfire & Cylinder Head Failure

2012 Jeep Grand Cherokee

engine — Cylinder head misfire and failure (left side primary)

2012 Jeep Wrangler

engine — Cylinder head defect with misfires

2011 Ford F-150

electrical — Engine misfire and loss of power during acceleration

2011 Ford Taurus

engine — Internal Water Pump Failure with Coolant Intrusion

2011 GMC Sierra

powertrain — Valve lifter failure with misfire and engine knock

2010 Ford Escape

cruise control — Electronic Throttle Body Malfunction - Loss of Acceleration

2009 Buick Enclave

electrical — Ignition coil failures

2009 Chevrolet Traverse

engine — Cylinder Misfire / Ignition Coil Failure

2008 Chevrolet Silverado

engine — AFM lifter and camshaft failure

2008 Jeep Wrangler

engine — Stalling and no-start with WCM module failure

2006 Ford Ranger

engine — Cylinder Head Exhaust Valve Seat Recession

2006 Toyota Avalon

steering — VVT gear bolt loosening (engine stall, not true steering failure but reported with steering impact)

2005 Dodge Ram 1500

cruise control — Sudden unintended wide-open throttle acceleration

2005 Lincoln LS

engine — Ignition coil failure

2005 Toyota 4Runner

engine — Head Gasket Failure

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →