Cadillac bulletin PIC6535
What it saysThis Preliminary information communicates the direction a technician needs to take when customer experiences an unwanted emergency braking event. NHTSA’s full summary ↓
Cadillac filed this with NHTSA as a service bulletin dated Dec 21, 2023, received Jan 29, 2024, about the forward collision avoidance. It names 1 model year (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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates the direction a technician needs to take when customer experiences an unwanted emergency braking event.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIC6535 | Service bulletin | Dec 21, 2023 | 10249299 | not found |
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.
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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 1 model year this bulletin names have filed 33 complaints with NHTSA since 2015. 11 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.
On my car auto brake unexpected early afternoon on . SPEED WAS APPROXIMATELY 53 mph. A Mack dump truck almost rear ended me. On the same thing happened in Philipsburg NJ on . CAR WAS BROUGHT TO Faulkner Cadillac in Bethel, Pa. In both cases, there were no cars or objects in my path.
2024 Cadillac XT4 · Forward Collision Avoidance · filed with NHTSA Aug 27, 2025 · ODI 11683508
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 the Cadillac XT4 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… |
| PIT5551P | Service bulletin | Oct 1, 2024 | This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braki… |
| 24-NA-053 | Service bulletin | Mar 18, 2024 | This technical bulletin provides repair information to correct a customer concern of False Automatic Emergency Braking (AEB) Events. |
| 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… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Cadillac PIC6535 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 PIC6535 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 PIC6535 cover?
The manufacturer filed it against 1 model year: 2024 Cadillac XT4. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.