Chevrolet bulletin 22-NA-140
What it saysThis informational bulletin advises the technician of an upgraded rear coil spring if the rear sags to much from loaded equipment. NHTSA’s full summary ↓
Chevrolet filed this with NHTSA as a service bulletin dated Feb 20, 2025, received Mar 30, 2023, about the suspension — 2 documents under this number. It names 5 model years (2021–2025). 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 informational bulletin advises the technician of an upgraded rear coil spring if the rear sags to much from loaded equipment.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 22-NA-140 | Service bulletin | Feb 20, 2025 | 11014580 | PDF, 121 KB |
| 22-NA-140 | Service bulletin | Mar 8, 2023 | 10233344 | PDF, 482 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 84660652 | — | 2 |
Read by machine from the document NHTSA serves (2 pages), read Sep 30, 2026. A part number is shown only where it matches Chevrolet’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.
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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What owners reported
Source: NHTSA complaint databaseOwners of the 5 model years this bulletin names have filed 980 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 suspension
Source: same model, same component group29 other manufacturer communications filed against the Chevrolet Tahoe under the same component group (suspension), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-110 | Service bulletin | Sep 6, 2025 | This bulletin advises the techs that the front and or rear shocks need to be replaced as a set and not 1 at a time to avoid the road and rid… |
| PI0281L | Service bulletin | Apr 17, 2025 | This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody comp… |
| 18-NA-315 | Service bulletin | Apr 3, 2025 | This service bulletin advises the tech to only replace the shock that is bad and not all shocks. |
| 24-NA-099 | Service bulletin | Mar 5, 2025 | This bulletin provides a service procedure to replace the sway bar bracket retainers if found the cause of the clunking noise from front of… |
| PIT6144F | Service bulletin | Feb 27, 2025 | This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the sus… |
| PIT5981B | Service bulletin | Feb 27, 2025 | This Preliminary information communicates a tip when diagnosing an inoperative air leveling suspension system and to repair any loss of comm… |
| PIT6144E | Service bulletin | Feb 13, 2025 | This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the sus… |
| PIT6144D | Service bulletin | Jan 29, 2025 | This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the sus… |
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 22-NA-140 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 22-NA-140 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.
Which vehicles does 22-NA-140 cover?
The manufacturer filed it against 5 model years: 2025 Chevrolet Tahoe, 2024 Chevrolet Tahoe, 2023 Chevrolet Tahoe, 2022 Chevrolet Tahoe, 2021 Chevrolet Tahoe. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.