GM bulletin 24-NA-034
What it saysThis service bulletin provides information for dealers/technicians on Grunt Noise with Adaptive Cruise or One-Pedal Drive. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Oct 12, 2024, received Feb 28, 2024, about the forward collision avoidance — 3 documents under this number. It names 16 model years across Chevrolet and GMC (2022–2025). 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.
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 communicationThis service bulletin provides information for dealers/technicians on Grunt Noise with Adaptive Cruise or One-Pedal Drive.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24-NA-034 | Service bulletin | Oct 12, 2024 | 11010575 | PDF, 119 KB |
| 24-NA-034 | Service bulletin | Jun 13, 2024 | 11003837 | PDF, 134 KB |
| 24-NA-034 | Service bulletin | Feb 15, 2024 | 10250753 | PDF, 485 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.
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Model years it names
Source: as the manufacturer filed themChevrolet 10 model years
Also filed against model years this site has no page for: 2025 Chevrolet Brightdrop 400; 2025 Chevrolet Brightdrop 600.
GMC 6 model years
Also filed against model years this site has no page for: 2022 GMC Hummer EV Pickup.
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 13 model years this bulletin names have filed 1,905 complaints with NHTSA since 2015. 290 of them name Forward Collision Avoidance — 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.
Good day, We purchased our 2024 Chevy Equinox EV a month and a half ago. The issue we are having is very concerning. The vehicle will suddenly come to a complete stop at unexpected times. At first, it happened 3 times while we were backing up. There was no object in the road, no warning beeps, no shaking of the seat.
2024 Chevrolet Equinox · Forward Collision Avoidance · filed with NHTSA Oct 21, 2024
Automatic Emergency Braking engages when no object is present to hit. This has happened twice at lower speeds (roughly 20-30 mph). Parked cars present on side of road. Dangerous to driver and passengers as well as anyone behind the vehicle. Dealer hasn’t yet inspected the vehicle but that is pending scheduling
2024 GMC Hummer EV · Forward Collision Avoidance · filed with NHTSA Sep 11, 2026
Contining with issue referenced in 11701484. This morning (1/28/26) when leaving my home, I backed out of my driveway. Once I put the car into drive, the forward collision warning went off and locked up my car. The brakes would not release and I could not move out of the way of oncoming traffic.
2024 Chevrolet Blazer · Forward Collision Avoidance · filed with NHTSA Jan 28, 2026
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 forward collision avoidance
Source: same model, same component group18 other manufacturer communications filed against these GM models under the same component group (forward collision avoidance), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-118 | Service bulletin | May 8, 2025 | This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions need… |
| 25-NA-060 | Service bulletin | Mar 11, 2025 | This service bulletin provides information for dealers/technicians on Diagnostic Aid - Super Cruise Unavailable. |
| PIT6298 | Service bulletin | Dec 17, 2024 | This Preliminary information communicates to the field about a false DTC that is setting and how to address the issue. |
| PIT6186D | Service bulletin | Dec 16, 2024 | This Preliminary information communicates that a customer may see a Super Cruise Unavailable message with multiple codes setting and Enginee… |
| PIC6556G | Service bulletin | Dec 6, 2024 | This Preliminary information communicates to check the drivers monitoring camera for a B1DD0 SYM57 or B0126 SYM82 setting with no other DTCs… |
| PIT6186C | Service bulletin | Oct 25, 2024 | This Preliminary information communicates that a customer may see a Super Cruise Unavailable message with multiple codes setting and Enginee… |
| 24-NA-169 | Service bulletin | Oct 16, 2024 | This technical bulletin provides repair information to correct a customer concern of Super Cruise Dropping Out After Driving 30–60 Seconds a… |
| PIT6186B | Service bulletin | Oct 10, 2024 | This Preliminary information communicates that a customer may see a Super Cruise Unavailable message with multiple codes setting and Enginee… |
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 24-NA-034 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 24-NA-034 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 24-NA-034 cover?
The manufacturer filed it against 16 model years across 2 brands (Chevrolet and GMC): 2025 Chevrolet Blazer, 2024 Chevrolet Blazer, 2023 Chevrolet Bolt EUV, 2023 Chevrolet Bolt EV, 2025 Chevrolet Equinox, 2024 Chevrolet Equinox and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.