GM bulletin N23-241182
What it says(There may be future updates under this same release number.) Your vehicle keeps getting better. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Aug 9, 2023, received Aug 14, 2023, about the forward collision avoidance. It names 4 model years across Chevrolet, GMC and Cadillac (2021). 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 · Cadillac.
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 communication(There may be future updates under this same release number.) Your vehicle keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: Updates made to improve the Super Cruise driver assistance technology and the Adaptive Cruise Control functionality. Updates to improve the connectivity within Apple CarPlay & Android Auto. A variety of other minor software updates to make your driving and in-vehicle experience better.â Better Never Stopsâ¢
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N23-241182 | Service bulletin | Aug 9, 2023 | 10240713 | PDF, 96 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the adaptive cruise control for the 2021 Suburban →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themChevrolet 2 model years
GMC 1 model year
Cadillac 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.
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 4 model years this bulletin names have filed 1,417 complaints with NHTSA since 2015. 55 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.
With cruise control activated, at least 10 times since I bought this expensive vehicle the automated emergency braking activated at highway speeds - causing the vehicle to full brake without warning and nearly causing an accident each time (handling risk and risk of being impacted from behind by a following vehicle).
2021 Chevrolet Suburban · Forward Collision Avoidance · filed with NHTSA Sep 19, 2022 · ODI 11485286
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 group14 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 |
|---|---|---|---|
| N252500161-01 | Service campaign | Jul 23, 2025 | If the driver receives a “Driver Assist Unavailable” message, and SuperCruise is non-functional, all future OTA updates may fail. Dealers wi… |
| 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-070 | Service bulletin | Mar 21, 2025 | This service bulletin provides information on Super Cruise IME Recognition. |
| 25-NA-060 | Service bulletin | Mar 11, 2025 | This service bulletin provides information for dealers/technicians on Diagnostic Aid - Super Cruise Unavailable. |
| PIT6325A | Service bulletin | Feb 25, 2025 | This Preliminary information communicates a issue with the forward camera that causes a Forward Collision Unavailable Message With DTC U3000… |
| 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… |
| PIT6268 | Service bulletin | Oct 29, 2024 | This Preliminary information communicates where the driver is unable to activate Super Cruise along with a DIC message stating "Super Cruise… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet, GMC and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N23-241182 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 N23-241182 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 N23-241182 cover?
The manufacturer filed it against 4 model years across 3 brands (Chevrolet, GMC and Cadillac): 2021 Cadillac Escalade, 2021 Chevrolet Suburban, 2021 Chevrolet Tahoe, 2021 GMC Yukon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.