For Honda owners wondering about the lifetime of the catalytic converter warranty, the standard protection lasts up to eight years or 80,000 miles, whichever comes first. This coverage is part of the federal emissions warranty and is separate from the vehicle’s basic bumper-to-bumper protection.
What this warranty covers
The following outlines the scope and duration of the warranty as it applies to the catalytic converter and related emissions components on most Honda models sold in the United States since 1996.
- Duration and scope: Emissions warranty coverage for the catalytic converter generally lasts 8 years or 80,000 miles, whichever comes first.
- Components covered: The catalytic converter and other major emissions-control devices as installed by Honda on the vehicle during manufacture.
- Who it covers: New Honda vehicles under the federal Emissions Warranties; terms may differ by state or model year, so verify with your dealer or in your owner's manual.
In practice, this means if the catalytic converter fails due to a manufacturing defect within the term, Honda covers the repair or replacement under the Emissions Warranty.
What isn’t covered
There are several exclusions that can void or fall outside the warranty, including damage from accidents, improper maintenance, misuse, tampering, or aftermarket modifications that affect the emissions system.
- Damage from accidents or external events is not covered.
- Damage caused by improper maintenance or installation is not covered.
- Tampering, aftermarket parts, or modifications that affect emissions can void coverage.
Keep in mind that the exact exclusions can vary by model year and state; check the warranty booklet for specifics.
How to file a claim
If you suspect a failing catalytic converter, follow these steps to pursue a warranty claim with an authorized Honda dealer.
- Bring the vehicle to an authorized Honda dealership for a diagnostic evaluation.
- Provide proof of ownership, mileage, and the vehicle's warranty status.
- Let the dealer determine if the issue is a covered defect in materials or workmanship.
- If approved, the dealer will perform the repair or replacement using genuine Honda parts at no or reduced cost to you.
Next steps include reviewing any out-of-pocket costs and keeping maintenance records to support the claim.
Notes by model year and region
Warranty terms can vary by model year, region, and state. California and some states have specific emissions-warranty rules that align with CARB standards; always verify your vehicle's exact terms in the owner's manual or by contacting Honda Customer Service or your local dealer.
Why the distinction matters
Even when a vehicle is under the general 8/80 Emissions Warranty, certain model-year-specific terms or regional rules may offer broader coverage or shorter windows for some components. When in doubt, check the warranty booklet or confirm with Honda.
Summary
The catalytic converter on Honda vehicles is typically covered under the Emissions Warranty for up to 8 years or 80,000 miles, whichever comes first, providing protection against defects in materials or workmanship. This is separate from the standard bumper-to-bumper and powertrain warranties. Always consult your owner's manual or your Honda dealer to confirm the exact terms for your model-year and location, and retain service records if you need to file a claim.