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Honda Auto Idle Stop Defect Settlement

Settlement Amount
Repair Reimbursement
Claim Deadline
August 18, 2026
Total Fund
No Fixed Fund

If you own or leased a 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016-2021 Honda Pilot, 2019-2021 Honda Passport, or 2020-2021 Honda Ridgeline and paid out of pocket to fix an engine that wouldn't restart after the Auto Idle Stop engaged, a class action settlement may entitle you to full reimbursement of those repair costs. The case In re Honda Idle Stop Litigation alleged the Auto Idle Stop system in these vehicles was defective — when the engine automatically shut off at a stop it sometimes failed to restart when the driver released the brake. American Honda Motor Co. denies the feature is defective. The court granted final approval on May 20, 2026. The deadline to submit a reimbursement claim for past repair costs is August 18, 2026.

Do I Qualify?

You are a class member if you purchased or leased in the United States one of the following vehicles with an NP0 engine, nine-speed automatic transmission, and Auto Idle Stop feature: 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016-2021 Honda Pilot, 2019-2021 Honda Passport, or 2020-2021 Honda Ridgeline. Use the VIN check on the official settlement website to confirm your specific vehicle's eligibility.

Submit your reimbursement claim at settlement-claims.com/autoidlestop before August 18, 2026.

File Your Claim →

What Happened?

Filed in 2022 in the U.S. District Court for the Central District of California, Case No. 2:22-cv-04252-MCS-SK, the lawsuit consolidated claims from owners and lessees of five Honda and Acura models equipped with the NP0 engine, nine-speed automatic transmission, and Auto Idle Stop feature. Plaintiffs alleged the system could fail to restart the engine at a traffic stop, leaving vehicles temporarily undrivable, and that Honda knew about the defect but failed to disclose it. Honda denied all liability and pointed to an existing software update and 10-year warranty extension as adequate remedies. U.S. District Judge Mark C. Scarsi granted final approval on May 20, 2026.

How to File Your Claim

  1. Visit the official settlement website at settlement-claims.com/autoidlestop
  2. Click Claim Form Submission to access the online claim form
  3. Gather your repair documentation — invoices or receipts showing out-of-pocket costs for starter replacement, starter relay replacement, valve adjustment, or towing related to an Auto Idle Stop no-restart incident
  4. Complete the claim form and upload your supporting documents
  5. Submit online or postmark a mailed paper form by August 18, 2026
  6. For future towing or covered out-of-pocket costs submit a separate claim within 60 days of incurring those costs
  7. For help call (888) 888-3082

How Much Will I Actually Get?

Honda reimburses eligible out-of-pocket costs you paid for Auto Idle Stop no-restart repairs including parts and labor for starter replacement, starter relay, valve adjustment, and related towing — supported by invoices or receipts. No per-claim dollar cap beyond your actual documented cost. The warranty extension for eligible 2015 and 2016 model vehicles is applied automatically to your VIN — no claim form needed. Important: the widely reported $7,500 figure refers only to the service award for the named class representatives — it is not paid to every class member.

Last reviewed: July 2, 2026 | Information verified from court records and official settlement documents.

Frequently Asked Questions

Which vehicles are covered?
2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016-2021 Honda Pilot, 2019-2021 Honda Passport, and 2020-2021 Honda Ridgeline with NP0 engine, nine-speed automatic, and Auto Idle Stop. Use the VIN check at settlement-claims.com/autoidlestop to confirm your vehicle.
Do I need receipts to file?
Yes. You must provide repair invoices or receipts showing what you paid out of pocket for a covered repair. The warranty extension does not require a claim form.
Is the settlement paying $7,500 per owner?
No. That figure refers to the service award for the five named class representatives who litigated the case. Regular class members receive reimbursement of documented repair costs and the warranty extension.
What is the Auto Idle Stop defect?
Plaintiffs alleged the system failed to restart the engine after automatically shutting off at a stop, leaving vehicles temporarily undrivable. Honda denies the feature is defective.
What is the Extended Claim Period?
For 2015 Acura TLX owners Honda adds 24 months to the existing 10-year warranty extension. For 2016 Acura TLX, 2016 Acura MDX, and 2016 Honda Pilot owners 18 months are added. Applied automatically to eligible VINs — no claim form required.
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