Cadillac bulletin PIC6536
What it saysThis Preliminary information communicates to the technicians some additional diagnostic steps to perform if they encounter a no crank condition and/or loss of power steering. NHTSA’s full summary ↓
Cadillac filed this with NHTSA as a service bulletin dated Jan 10, 2024, received Feb 12, 2024, about the steering. It names 10 model years (2020–2024). 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 to the technicians some additional diagnostic steps to perform if they encounter a no crank condition and/or loss of power steering.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIC6536 | Service bulletin | Jan 10, 2024 | 10249970 | 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.
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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 10 model years this bulletin names have filed 128 complaints with NHTSA since 2015. 10 of them name Steering — 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.
While driving the power steering was lost. The the auto hold function lit up. The collision warning light lit up. The stabilitrak system lit up. The air bag safety system lit up. Steering became very hard and made for y safe driving. Later that day 01-22-24, all warning light went out and power steering was normal
2021 Cadillac CT4 · Steering · filed with NHTSA Jan 24, 2024 · ODI 11567425
While driving at higher speeds the multiple CT4 vehicles that I have driven share steering issues. While driving straight, there are no issues. If following gentle bends in the highway to the RIGHT, randomly the vehicles will increase the force required to maintain the current ground track.
2022 Cadillac CT4 · Steering · filed with NHTSA Dec 22, 2022 · ODI 11498610
The contact owned a 2023 Cadillac CT5. The contact stated that while exiting the highway on the far right lane on a 2-lane exit at 45 MPH, a message appeared on the instrument panel that read "Steering assistance reduced, drive with care" and "Service Power Steering".
2023 Cadillac CT5 · Steering · filed with NHTSA Feb 5, 2025 · ODI 11640854
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 steering
Source: same model, same component group11 other manufacturer communications filed against these Cadillac models under the same component group (steering), newest first. The eight newest are listed; the rest are on the Cadillac list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| PI0281L | Service bulletin | Apr 17, 2025 | This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody comp… |
| 25-NA-065 | Service bulletin | Mar 21, 2025 | This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. |
| 16-NA-109 | Service bulletin | Feb 18, 2025 | This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grea… |
| N242440670 | Service bulletin | Apr 29, 2024 | Service Update - Certain vehicles may have a condition in which the tie rod jam nut may be below torque specification. Dealers will perform… |
| N222371151-12 | Service bulletin | Dec 13, 2023 | Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on… |
| N222371151-11 | Service bulletin | Nov 1, 2023 | Customer Satisfaction. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain… |
| N222371151-10 | Service bulletin | Aug 9, 2023 | Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional o… |
| 15-00-89-004F | Service bulletin | Aug 7, 2023 | This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak… |
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 PIC6536 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 PIC6536 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 PIC6536 cover?
The manufacturer filed it against 10 model years: 2024 Cadillac CT4, 2023 Cadillac CT4, 2022 Cadillac CT4, 2021 Cadillac CT4, 2020 Cadillac CT4, 2024 Cadillac CT5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.