GM warranty extension N252536751-01
What it saysCertain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. NHTSA’s full summary ↓
GM filed this with NHTSA as a warranty extension dated Apr 20, 2026, about the wheels. It names 4 model years across Chevrolet, GMC and Cadillac (2022). A warranty extension is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC · Cadillac.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after April 17, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to April 17, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to update the control valve body spacer plate, actuator feed valve and spring in the valve body. The repairs will be made at no charge to the customer.
Trouble codes it names: P0747
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N252536751-01 | Warranty extension | Apr 20, 2026 | 11031388 | PDF, 290 KB |
What the document itself lists
The manufacturer titles it “REVISION: N252536751-01 - Special Coverage”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 19352619 | — | — |
| 19352620 | — | — |
| 24073070 | BOLT/SCREW-C/VLV BODY | — |
| 24271818 | SEAL, A/TRNS AUX FLUID PUMP OTLT PIPE | — |
| 24047734 | SEAL, A/TRNS AUX FLUID PUMP | — |
| 24059372 | VALVE-ACTR FEED LIM | — |
| 24075091 | PLATE ASM-C/VLV BODY SPCR | — |
| 24270191 | SEAL – A/TRNS FLUID PUMP | — |
| 24279142 | SPRING-ACTR FEED LIM VLV | — |
| 24290889 | SEAL – A/TRNS FLUID PUMP | — |
| 24294355 | FILTER KIT-A/TRNS FLUID | — |
| 96020431 | — | — |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9900962 | Customer Reimbursement Approved - For USA and Canada dealers only - For Export… | 0.2 hrs |
| 9900963 | Customer Reimbursement Denied – For USA dealers only N/A ZREG ** For USA and Canada… | 20 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches GM’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themChevrolet 2 model years
GMC 1 model year
Cadillac 1 model year
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 826 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the wheels
Source: same model, same component group16 other manufacturer communications filed against these GM models under the same component group (wheels), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N252536751 | Warranty extension | Apr 17, 2026 | Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual… |
| N252494250 | Service campaign | Aug 26, 2025 | Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’… |
| 25-NA-156 | Service bulletin | Jun 7, 2025 | This service bulletin provides information on Tire Sidewall Irregularities. |
| 08-03-10-006I | Service bulletin | Mar 14, 2025 | This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of T… |
| 21-NA-043 | Service bulletin | Jan 31, 2025 | This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before bein… |
| 17-NA-271 | Service bulletin | Nov 26, 2024 | Clicking Noise from Front Wheels While Turning at Slow Speeds Condition Some customers may comment on a clicking noise emanating from th… |
| 24-NA-187 | Service bulletin | Sep 12, 2024 | This informational bulletin provides information on Information on Bright PVD (Physical Vapor Deposition) Wheels Appearance and Care. |
| PIT6171A | Service bulletin | Sep 11, 2024 | This Preliminary information communicates a diagnostic tip for a wheel/tire vibration caused by the brake rotors being out of balance. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet, GMC and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N252536751-01 a recall?
No. A warranty extension is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the N252536751-01 repair free?
A warranty extension is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does N252536751-01 cover?
The manufacturer filed it against 4 model years across 3 brands (Chevrolet, GMC and Cadillac): 2022 Cadillac Escalade, 2022 Chevrolet Suburban, 2022 Chevrolet Tahoe, 2022 GMC Yukon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.