2009 Kenworth T300 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 0 complaints on file for the 2009 Kenworth T300 — too few to judge reliability from owner reports alone — but one recall campaign applies to this year, so any used example should have its VIN checked for completed recall work.

NHTSA complaints

Recalls

Investigations

Crash-involved

Fires reported

Injuries

Deaths

—

NCAP overall

How does 2009 compare to other T300 years?

T300 NHTSA complaints by model year, 2009 highlighted. Red bars are years to avoid.

See all T300 years to avoid →

Does the 2009 Kenworth T300 have recalls?

1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.

09V348000EngineSeptember 3, 2009 · 135 units

Defect

PACCAR IS RECALLING MODEL YEAR 2008-2010 KENWORTH T300, T270, AND T370, MODEL YEAR 2009-2010 T800 AND PETERBILT MODEL YEAR 2008-2010 335, 340, AND 367 VEHICLES BUILT ON CUMMINS' DIESEL ENGINE. THE VEHICLES MAY BE DESIGNED WITH A HARD WIRED, DASH-MOUNTED SWITCH THAT ENABLES THE VEHICLE OPERATOR TO INHIBIT AFTERTREATMENT DIESEL PARTICULATE FILTER REGENERATION IN ENVIRONMENTS WHERE THE OPERATOR BELIEVES IT MAY BE UNSAFE FOR ELEVATED EXHAUST TEMPERATURES. DUE TO AN ISSUE WITH THE LOGIC IN THE ECM SOFTWARE IN THESE ENGINES, THE SWITCH MAY NOT FUNCTION CORRECTLY, LEADING THE OPERATOR TO BELIEVE THAT THE SWITCH IS IN "INHIBIT" MODE WHEN IT IS NOT.

Consequence

THIS CONDITION WILL PERMIT HOT EXHAUST GASES TO EXIT THE VEHICLE TAILPIPE, INCREASING THE RISK OF MELTING OR BURNING OF NEARBY SURFACES, OR A FIRE.

Remedy

PACCAR IS WORKING WITH CUMMINS TO REPAIR THE ENGINES FREE OF CHARGE PLEASE SEE 09E-046. THE SAFETY RECALL BEGAN ON OCTOBER 1, 2009. OWNERS MAY CONTACT CUMMINS AT 1-800-DIESELS (1-800-343-7357).

2009 Kenworth T300 — common questions

Is the 2009 Kenworth T300 reliable?

The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.

Does the 2009 Kenworth T300 have recalls?

Yes — NHTSA lists 1 recall campaign affecting the 2009 Kenworth T300. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.

How does 2009 compare to other T300 years?

Does the 2009 Kenworth T300 have recalls?

2009 Kenworth T300 — common questions

Is the 2009 Kenworth T300 reliable?

Does the 2009 Kenworth T300 have recalls?

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