ClaimRight · Warranty Denial Guides

Acura Mdx warranty claim denied?

928 manufacturer communications on file 32 warranty extensions / campaigns 2001–2025 model years covered

If your Acura MDX warranty claim was recently denied, you're not alone, and the denial may not be the final word. Manufacturers are required to file service communications with NHTSA whenever they identify recurring problems, and for the MDX (2001–2025), there are 928 such filings on record, including 32 formal warranty extensions or service campaigns. These cover issues such as idle-stop systems failing to restart the engine after a stop, backordered pistons and rings for 3.7L V6 engine repairs, a Customer Support Program tied to an airbag inflator class-action settlement, and a paint-defect extension for certain 2014–16 White Diamond Pearl models. Documentation like this matters because dealer denials are sometimes based on incomplete information, expired standard warranty windows, or a failure to apply an active extension or campaign that your vehicle may already qualify for. A free assessment can help you understand whether your specific repair falls within any documented issue, what paperwork supports a reconsideration request, and what your realistic next steps are. This is general information to help you evaluate your options, not legal advice.

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What Acura has documented for the Mdx

Filed with NHTSA by the manufacturer. Warranty extensions are the strongest signal — the manufacturer acknowledging a defect and extending coverage for it.

2023-03-20 · B23-002 Warranty extension
Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or lo...
Official NHTSA document →
2023-03-10 · ONL6T603102023 Warranty extension
Warranty Extension - Warranty Extension reimbursement form for engine idle stop repairs made before the warranty extension notice date.
Official NHTSA document →
2023-03-10 · ONL6T603102023-3 Warranty extension
Warranty Extension - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.
Official NHTSA document →
2020-03-10 · B20-007 Warranty extension
Service Bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extens...
Official NHTSA document →
2020-03-10 · B20-010 Warranty extension
Service Bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extens...
Official NHTSA document →
2019-10-21 · BAW10212019 Warranty extension
Dealer Message - On August 29, 2019, American Honda launched one revised, and one new Warranty Extension paint bulletin. Please review the following summary of requirements within...
Official NHTSA document →
2019-10-02 · B19-052 Warranty extension
Service Bulletin - Due to high demand for repairs under this warranty extension, pistons and rings required to complete this repair are currently backordered. Acura has provided th...
Official NHTSA document →
2019-08-31 · BBOM08312019 Warranty extension
Dealer Message - On January 16, 2019, Acura announced a warranty extension for certain 2009-14 Acura vehicles equipped with a 3.7L V6 engine to address client concerns related to e...
Official NHTSA document →
2019-08-29 · B19-029 Warranty extension
Service Bulletin - This warranty extension only applies to 2014-16 MDX vehicles that are painted NH-603P White Diamond Pearl. The exterior paint on the roof and/or tailgate may pee...
Official NHTSA document →
2019-08-07 · BAW08072019 Warranty extension
Dealer Message - In the last few weeks, American Honda has issued a paint warranty extension service bulletins on the MDX model due to paint defects under S/B# 19-029. It is import...
Official NHTSA document →
2019-08-07 · ONL6R408072019 Warranty extension
Owner Notification Letter - On some 2014-16 MDX models, the exterior paint on the roof and tailgate may peel off. To ensure your confidence in your vehicle, American Honda is exten...
Official NHTSA document →
2019-06-01 · BBOM06012019 Warranty extension
Dealer Message - Today, June 1, 2019, Acura is announcing a warranty extension for certain 2014-16 MDX vehicles with White Diamond Pearl paint to address client concerns with peeli...
Official NHTSA document →
2019-04-30 · B18-009 Warranty extension
Service Bulletin - The oil control rings may become clogged with carbon deposits. These deposits restrict the ring's ability to scrape and return oil from the cylinder wall to the...
Official NHTSA document →
2019-01-16 · BBOM01162019901 Warranty extension
Dealer message - Today, January 16, 2019, Acura is announcing a warranty extension for certain 2009-14 Acura vehicles equipped with the 3.7L V6 engine to address client concerns re...
Official NHTSA document →
2018-06-07 · B18-025 Warranty extension
Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extens...
Official NHTSA document →
2018-06-01 · B18-023 Warranty extension
Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extens...
Official NHTSA document →
2018-05-25 · B18-019 Warranty extension
Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extens...
Official NHTSA document →
2018-05-24 · B18-018 Warranty extension
Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extens...
Official NHTSA document →
2018-05-24 · BBOM05242018901 Warranty extension
Dealer message - Today, May 24, 2018, Acura is announcing a warranty extension for 2002-17 Acura vehicles. This warranty extension applies in cases where any of the replacement dri...
Official NHTSA document →
2018-04-07 · B17-026 Warranty extension
Service bulletin - American Honda is extending the warranty on the 9-speed transmission warmers to 10 years from the original date of purchase with unlimited mileage. This warrant...
Official NHTSA document →
2017-09-22 · BBOM09222017901 Warranty extension
Dealer message - Today, September 22, 2017, Acura is announcing four product updates and two warranty extensions on certain model year 2015-16 TLX and 2016 MDX vehicles to address...
Official NHTSA document →
2017-03-24 · CUSTOMER LETTER Warranty extension
"CUSTOMER LETTER - ON SOME 2011 RL VEHICLES, THERE MAY BE A JUDDER FROM THE TORQUE CONVERTER LOCK UP CLUTCH FELT WHILE DRIVING BETWEEN 20- 45 MPH. TO ENSURE YOUR CONFIDENCE IN OUR...
Official NHTSA document →
2016-11-08 · B16020 Warranty extension
Service bulletin - Warranty Extension: 2007?09 MDX and 2010 ZDX Front Active Damper - This bulletin will expire May 8, 2017. In cold areas, the front active dampers may be suscept...
Official NHTSA document →
2016-11-08 · B16021 Warranty extension
Service bulletin - Warranty Extension: 2007?13 MDX and 2010?12 ZDX Front Active Damper - cold areas, the front active dampers may be susceptible to leaking. Since these dampers are...
Official NHTSA document →
2016-11-08 · B16022 Warranty extension
Service bulletin - Warranty Extension: 2007?09 MDX and 2010 ZDX Rear Active Damper - In cold areas, the rear active dampers may be susceptible to leaking. If an excessive amount of...
Official NHTSA document →

Common questions

Why would a dealer deny an Acura MDX warranty claim that seems covered?
Denials often happen because the claim falls outside the standard warranty window, the paperwork didn't reference an applicable extension or campaign, or the dealer's initial diagnosis didn't match the documented defect language. Since manufacturers sometimes issue separate warranty extensions for specific components, a claim can be denied under the standard warranty yet still qualify under a later extension covering the same issue.
Can a denied Acura MDX warranty claim be reconsidered?
Yes, reconsideration is possible in many cases, particularly when the vehicle's symptoms match a documented service bulletin or extension the dealer didn't apply. Gathering repair records, comparing them to relevant manufacturer communications, and submitting a formal reconsideration request are common steps. Outcomes vary by situation, so reviewing your specific repair history against available documentation is a useful starting point.
What documentation helps when appealing a warranty denial?
Useful documentation typically includes the original repair order, any diagnostic notes, mileage and date records, and copies of relevant manufacturer bulletins or extensions that describe the same symptoms. Having a clear timeline showing when the issue appeared relative to warranty or extension coverage periods can also help clarify whether the repair should have been included.
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ClaimRight is a consumer advocacy and document-preparation service. We are not a law firm, do not provide legal advice, and make no promises about the outcome of any individual claim. Bulletin data is sourced from public NHTSA filings and refreshed weekly. All vehicle guides