GM service campaign N242482640
What it saysService update - Certain vehicles listed above may have a condition in which the left front shock was assembled to a higher torque specification. NHTSA’s full summary ↓
GM filed this with NHTSA as a service campaign dated Feb 26, 2025, about the suspension. It names 2 model years across Chevrolet and GMC (2024). A service campaign 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.
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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 listed above may have a condition in which the left front shock was assembled to a higher torque specification. Dealers are to replace the left front shock rod and nut.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N242482640 | Service campaign | Feb 26, 2025 | 11014544 | PDF, 93 KB |
What the document itself lists
The manufacturer titles it “N242482640 - Service Update”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 85639231 | ABSORBER, FRT SHK (WT & 2WD) | — |
| 85639232 | ABSORBER, FRT SHK (Z71 & 4WD) | — |
| 85639233 | ABSORBER, FRT SHK (Z21 & 2WD) | — |
| 85639234 | ABSORBER, FRT SHK (Z21 and 4WD) | — |
| 11601789 | NUT, FRT S/ABS SHK ROD MT | — |
| 11612295 | NUT, FRT WHL DRV SHF (4WD Only) | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9107740 | LH Front Shock Absorber Replacement 2WD 4WD | 1.6 hrs |
Read by machine from the document NHTSA serves (4 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 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 333 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 group8 other manufacturer communications filed against these GM models under the same component group (suspension), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-124 | Service bulletin | May 15, 2025 | This informational bulletin provides information on a noise coming from the front suspension while going over speed bumps at speeds greater… |
| 17-NA-394 | Service bulletin | Apr 1, 2025 | This technical bulletin provides a procedure for lubricating the rear leaf springs and re-torque the bolts to correct a squeak, clunking noi… |
| N242482641 | Service campaign | Feb 26, 2025 | Service Update - Certain vehicles listed above may have a condition in which the right front shock was assembled to a higher torque specific… |
| 05-03-07-009L | Service bulletin | Feb 25, 2025 | This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles. |
| 05-03-08-002J | Service bulletin | Aug 22, 2024 | This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid lea… |
| 15-00-89-004G | Service bulletin | Apr 26, 2024 | This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and wh… |
| PIT5214F | Service bulletin | Nov 14, 2023 | This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that… |
| 03-00-91-001I | Service bulletin | Nov 6, 2023 | This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis… |
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 N242482640 a recall?
No. A service campaign 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 N242482640 repair free?
A service campaign 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 N242482640 cover?
The manufacturer filed it against 2 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Colorado, 2024 GMC Canyon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.