GM bulletin PIT5950A
What it saysThis Preliminary information communicates an issue of the wrong part number WSS being installed during a service procedure and to warn dealership tech to make sure the correct part number WSS is installed. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Sep 26, 2023, received Dec 26, 2023, about the wheels. It names 12 model years across Chevrolet and GMC (2019–2024). 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.
Get the next GM bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates an issue of the wrong part number WSS being installed during a service procedure and to warn dealership tech to make sure the correct part number WSS is installed.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT5950A | Service bulletin | Sep 26, 2023 | 10247779 | not found |
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 6 model years
GMC 6 model years
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new GM bulletins for one of these models
A weekly email, sent only in a week when GM files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 12 model years this bulletin names have filed 7,382 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 group19 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 |
|---|---|---|---|
| 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… |
| 25-NA-035 | Service bulletin | Feb 19, 2025 | This service bulletin provides information on 2024 Silverado RST Sidewinder Available (enabling all four wheels to turn in same direction… |
| 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… |
| 22-NA-172 | Service bulletin | Jan 23, 2025 | This technical bulletin provides repair information to correct a customer concern of Trailer Tire Pressure Only Reading Up To 100 PSI, New P… |
| 21-NA-270 | Service bulletin | Oct 2, 2024 | This informational bulletin provides information for dealers/technicians on Vibration Caused by Tires. |
| 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. |
| PIT5894C | Service bulletin | Sep 6, 2024 | This Preliminary information communicates Some customers may comment on a vibration while driving. The cause of the condition may be that… |
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 PIT5950A 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 PIT5950A 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 PIT5950A cover?
The manufacturer filed it against 12 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado, 2023 Chevrolet Silverado, 2022 Chevrolet Silverado, 2021 Chevrolet Silverado, 2020 Chevrolet Silverado, 2019 Chevrolet Silverado and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.