Chevrolet bulletin 23-NA-133
What it saysThis service bulletin provides information for dealers/technicians on Silverado High Country Steering Wheel Service Part Steel Silver Instead of Bronze. NHTSA’s full summary ↓
Chevrolet filed this with NHTSA as a service bulletin dated Jul 26, 2023, received Aug 2, 2023, about the steering. It names 2 model years (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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis service bulletin provides information for dealers/technicians on Silverado High Country Steering Wheel Service Part Steel Silver Instead of Bronze.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-NA-133 | Service bulletin | Jul 26, 2023 | 10240257 | PDF, 1,418 KB |
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 themA 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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A weekly email, sent only in a week when Chevrolet 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 2 model years this bulletin names have filed 196 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 steering
Source: same model, same component group16 other manufacturer communications filed against these Chevrolet models under the same component group (steering), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-116 | Service bulletin | May 10, 2025 | This service bulletin provides information and the condition correction on the "Service Steering Column Lock" message and/or those who are u… |
| PI0281L | Service bulletin | Apr 17, 2025 | This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody comp… |
| 13-02-32-001H | Service bulletin | Apr 11, 2025 | This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern… |
| 25-NA-065 | Service bulletin | Mar 21, 2025 | This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. |
| 16-NA-109 | Service bulletin | Feb 18, 2025 | This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grea… |
| N242485780-01 | Service campaign | Jan 27, 2025 | Some vehicles may contain a power steering pump that may prematurely fail. Dealers will inspect and replace the power steering pump as nece… |
| N242485780 | Service campaign | Jan 22, 2025 | Some vehicles may contain a power steering pump that may prematurely fail. Dealers will inspect and replace the power steering pump as neces… |
| 24-NA-185 | Service bulletin | Sep 10, 2024 | This informational bulletin provides information on Steering Bump or Clunk Noise on Rough Roads or Potholes. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Chevrolet 23-NA-133 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 23-NA-133 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 23-NA-133 cover?
The manufacturer filed it against 2 model years: 2024 Chevrolet Silverado 2500HD, 2024 Chevrolet Silverado 3500HD. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.