Cadillac bulletin PIC6564A
What it saysThis Preliminary information communicates the direction a dealer/technician should take if a customer inquires about the installation of a trailer hitch or if the trailer lighting is inoperative for vehicles built… NHTSA’s full summary ↓
Cadillac filed this with NHTSA as a service bulletin dated Nov 4, 2024, received Dec 4, 2024, about the electrical system. It names 2 model years (2024–2025). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates the direction a dealer/technician should take if a customer inquires about the installation of a trailer hitch or if the trailer lighting is inoperative for vehicles built without RPO option V92.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIC6564A | Service bulletin | Nov 4, 2024 | 11011173 | PDF, 25 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.
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 2 model years this bulletin names have filed 43 complaints with NHTSA since 2015. 13 of them name Electrical System — 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.
The contact owns a 2025 Cadillac XT4. The contact stated that the vehicle independently started after it was parked and turned off. The contact stated that the failure was intermittent but was a recurring failure. There was no warning light illuminated.
2025 Cadillac XT4 · Electrical System · filed with NHTSA Feb 2, 2026 · ODI 11714926
The Onstar service will not operate. The Onstar system drains the batter so the car will not start. Cadillac cant get the operative part for the Onstar, the telematic module. So the car is sitting at the Cadillac dealer and cant be repaired
2025 Cadillac XT4 · Electrical System · filed with NHTSA May 13, 2026 · ODI 11737617
While driving the car rapidly decelerated along with loss to steering control. The engine essentially shutdown and would not accelerate past 30 MPH with full force. Oil temperature was 280/300 and rising.
2024 Cadillac XT4 · Electrical System · filed with NHTSA Mar 21, 2025 · ODI 11649676
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 electrical system
Source: same model, same component group79 other manufacturer communications filed against the Cadillac XT4 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Cadillac list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 22-NA-242 | Service bulletin | Apr 24, 2025 | This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Number… |
| 24-NA-113 | Service bulletin | Apr 23, 2025 | This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions. |
| 24-NA-229 | Service bulletin | Apr 10, 2025 | This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system tha… |
| 23-NA-222 | Service bulletin | Apr 8, 2025 | This service bulletin provides repair information to correct a customer concern of Radio Software issues and provide software… |
| 23-NA-160 | Service bulletin | Apr 8, 2025 | This service bulletin provides repair information to correct a customer concern of IVD Radio Software issues. |
| 24-NA-193 | Service bulletin | Apr 7, 2025 | This service bulletin provides repair information on software release Update W52E-176.1.2-M170-SQBR5-250.2 to correct customer concern of ra… |
| 24-NA-136 | Service bulletin | Apr 4, 2025 | This service bulletin provides repair information on new Radio Software Version is W38E-174.4.1-M170-SQBR5-180.5 to correct a customer conce… |
| 25-NA-087 | Service bulletin | Apr 3, 2025 | This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs… |
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 PIC6564A 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 PIC6564A 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 PIC6564A cover?
The manufacturer filed it against 2 model years: 2025 Cadillac XT4, 2024 Cadillac XT4. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.