GM bulletin N222383020
What it saysService Update: Certain vehicles may have an Engine Control Module that does not properly respond to certain service tool requests for the datafile CALID (part number) and CVN (checksum). NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Jul 24, 2023, received Jul 25, 2023, about the power train. It names 2 model years across Chevrolet and GMC (2022). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC.
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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.
Service Update: Certain vehicles may have an Engine Control Module that does not properly respond to certain service tool requests for the datafile CALID (part number) and CVN (checksum). This condition may cause a vehicle to fail an emissions Inspection/Maintenance (I/M) test. Dealers are to reprogram the Engine Control Module.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N222383020 | Service bulletin | Jul 24, 2023 | 10239619 | PDF, 414 KB |
What the document itself lists
The manufacturer titles it “N222383020 - Service Update”.
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9106675 | Engine Control Module Reprogramming with SPS | 0.3 hrs |
Read by machine from the document NHTSA serves (6 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. Listings and prices on eBay Motors are the seller’s.
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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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the engine control module (ecu/ecm) for the 2022 Silverado →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themChevrolet 1 model year
GMC 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 2 model years this bulletin names have filed 1,258 complaints with NHTSA since 2015. 856 of them name Engine, Power Train — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2022 GMC Sierra, the 54 owners who gave an odometer reading for Engine reported it at a median of 47,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
i FEEL IT IS IN THE FUEL MANAGEMENT SYSTEM When driving along every now and then you can feel a vibration like diving on rumble strips. there is no rhyme or reason for it. I had it to the dealer and they told me that was normal, if you don't want it to do it then drive in 9th gear. I'm not going to shift to 9th every time I drive
2022 GMC Sierra · Engine · filed with NHTSA Jan 3, 2023 · ODI 11499958
The contact owns a 2022 GMC Sierra 1500. The contact stated that after purchasing the vehicle and leaving the local dealer, he heard an abnormal sound with the check engine warning light illuminated. The contact drove the vehicle back to the local dealer, where it was diagnosed with needing the transmission to be replaced.
2022 GMC Sierra · Power Train · filed with NHTSA Dec 28, 2022 · ODI 11499235
The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that the service transmission warning light was illuminated. The contact stated that the shift selector had seized. The contact called the local dealer where a service appointment was scheduled but the vehicle was not yet diagnosed nor repaired.
2022 Chevrolet Silverado · Power Train · filed with NHTSA Nov 15, 2022 · ODI 11493698
In depth: 2022 Chevrolet Silverado engine problems → · 2022 Chevrolet Silverado transmission and drivetrain problems → · 2022 GMC Sierra engine problems → · 2022 GMC Sierra transmission and drivetrain problems →
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 power train
Source: same model, same component group89 other manufacturer communications filed against these GM models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N252502891-01 | Service campaign | Aug 20, 2026 | Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will rev… |
| N252517790 | Service campaign | Oct 14, 2025 | Certain vehicles, equipped with 8L80 or 8L90 Transmissions, may have a condition in which the reaction carrier cracks. Dealers are to replac… |
| N242454441 -03 | Service campaign | Oct 9, 2025 | Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure w… |
| 25-NA-080 | Service bulletin | Sep 4, 2025 | This service bulletin provides a procedure to overhaul the control valve to replace a plate and worn down check ball to correct the customer… |
| N252494003-01 | Service campaign | Jun 26, 2025 | Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have… |
| N242483540-01 | Service campaign | May 21, 2025 | Certain vehicles listed above may have a condition in which the transmission may not shift properly. Dealers are to replace the transmission… |
| 22-NA-182 | Service bulletin | May 16, 2025 | This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer concerns of Harsh Shi… |
| 24-NA-133 | Service bulletin | May 14, 2025 | This informational bulletin provides information on Wheel Drive Shaft Retention Snap Ring Design Change. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet and GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N222383020 a recall?
No. A service bulletin 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 N222383020 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every GM warranty extension on file lists the ones GM has filed.
Which vehicles does N222383020 cover?
The manufacturer filed it against 2 model years across 2 brands (Chevrolet and GMC): 2022 Chevrolet Silverado, 2022 GMC Sierra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.