GM bulletin PIT6185
What it saysThis Preliminary information communicates information that Engineering is working on a fix for the AEB forward collision icon lamp illuminated in the cluster with no DTC's present. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Aug 15, 2024, about the forward collision avoidance. It names 4 model years across Chevrolet and GMC (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.
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 Preliminary information communicates information that Engineering is working on a fix for the AEB forward collision icon lamp illuminated in the cluster with no DTC's present.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT6185 | Service bulletin | Aug 15, 2024 | 11006415 | PDF, 27 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 2 model years
GMC 2 model years
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 4 model years this bulletin names have filed 344 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 forward collision avoidance
Source: same model, same component group7 other manufacturer communications filed against these GM models under the same component group (forward collision avoidance), newest first.
| 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… |
| PIT6185A | Service bulletin | Jan 14, 2025 | This Preliminary information communicates information to reprogram the Frontview Camera Module for the AEB forward collision icon lamp illum… |
| PIT5551N | Service bulletin | Feb 21, 2024 | This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braki… |
| PIT5551M | Service bulletin | Nov 9, 2023 | This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braki… |
| PIT5551L | Service bulletin | Aug 29, 2023 | This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braki… |
| PIT5551K | Service bulletin | Jul 18, 2023 | This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braki… |
| PIT5865B | Service bulletin | Apr 27, 2023 | This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the f… |
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 PIT6185 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 PIT6185 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 PIT6185 cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado 2500HD, 2024 Chevrolet Silverado 3500HD, 2024 GMC Sierra 2500HD, 2024 GMC Sierra 3500HD. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.