Hearth Record

Power train: automatic transmission (Allison)

Vehicle equipment recall 20E-049. NHTSA received Allison Transmission, Inc.’s report on Jul 17, 2020.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received Allison Transmission, Inc.’s report on Jul 17, 2020. Copied from NHTSA on Oct 20, 2026.

Every line below is in NHTSA’s own words, with its source beside it.

What’s wrong with it?

A loss of drive can disable the vehicle unexpectedly, increasing the risk of a crash.

Allison Transmission, Inc.

(ATI) is recalling certain Drive Units: H 50 EP (part numbers 29540673 and 29540900), H 40 EP (part numbers 29540697 and 29549708), H 50 EP Cert (part numbers 29556925 and 29556926), and H 40 EP Cert Drive (part numbers 29557038 and 29557036).

The pressure switches on these Drive Units may fail, possibly resulting in a loss of drive.

Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

  • NHTSA’s part: Power train: automatic transmission.

What should you do?

ATI will notify the manufacturers that purchased the affected equipment, and ATI dealers will replace the C1 and C2 pressure switches in the affected drive units free of charge. The recall began August 10, 2020. Owners may contact ATI customer service at 1-317-242-5000.

Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

  • How to reach the firm: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Which ones are recalled?

NHTSA counts 262 items potentially involved, across everything this recall names.

  • Part no. 29506484
Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

  • Allison H 40 EP TransmissionNHTSA gives no dates made
  • Allison H 50 EP TransmissionNHTSA gives no dates made

Who is recalling it?

  • Made by Allison Transmission, Inc..
Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

What the record doesn’t say

  • NHTSA’s recall file doesn’t say whether anyone was hurt.
  • Which ones, by part or lot: the recall’s report on NHTSA’s site gives them where the maker did; this file gives part numbers only where its maker listed them.
  • How many have been returned or fixed isn’t in the notice.
Source:

Hearth Record wrote these lines.

Sources

  • National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).

    Released Oct 20, 2026 and checked Oct 20, 2026. Updated daily. Public domain (U.S. Government work).

Source:

Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 20, 2026.

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

Made up for this guide: no real place is shown

Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 28, 2026. Updated monthly.

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Every fact names its source.

Who published it, when, and how often it changes sit beside each fact, with a link to the agency’s own file.

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