GM bulletin PIT5832K
What it saysThis Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Nov 14, 2023, received Dec 18, 2023, about the power train. It names 51 model years across Chevrolet, GMC, Buick and Cadillac (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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC · Buick · Cadillac.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT5832K | Service bulletin | Nov 14, 2023 | 10247355 | 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.
Model years it names
Source: as the manufacturer filed themChevrolet 19 model years
GMC 12 model years
Also filed against model years this site has no page for: 2022 GMC Hummer EV Pickup.
Buick 3 model years
Cadillac 17 model years
and 8 more on this site: 2021 Cadillac CT5, 2020 Cadillac CT5, 2024 Cadillac Escalade, 2023 Cadillac Escalade, 2022 Cadillac Escalade, 2021 Cadillac Escalade, 2023 Cadillac Lyriq, 2024 Cadillac XT4.
Also filed against model years this site has no page for: 2024 Cadillac Redundant Lyriq.
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 49 model years this bulletin names have filed 7,571 complaints with NHTSA since 2015. 1,475 of them name Power Train — 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 the 2022 Chevrolet Silverado, the 27 owners who gave an odometer reading for Power Train reported it at a median of 59,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I bought this car from a dealer .that buys buy back cars from Gm .when i bought the car the dealer stated all service have been done . well i took to get oil changed and chevy told me they had no record of this service.the 2024 corvette gets a free oil and trans service from chevy.it has got to be done before 7500 miles .well the dealer…
2024 Chevrolet Corvette · Power Train · filed with NHTSA Jun 23, 2026 · ODI 11745996
I was driving and noticed a very strong smell of an electrical fire. The truck popped up a High Voltage Battery warning and several warning lights came on. We stopped, restarted the truck and the lights came on again, the smell returned as soon as we started driving. We drove the truck to Cable Dahmer GMC in Kansas City, MO.
2024 GMC Sierra · Power Train · filed with NHTSA May 11, 2026 · ODI 11737138
The contact owns a 2022 GMC Sierra 1500. The contact stated that after purchasing the vehicle and leaving the local dealer, he heard an abnormal sound with the check engine warning light illuminated. The contact drove the vehicle back to the local dealer, where it was diagnosed with needing the transmission to be replaced.
2022 GMC Sierra · Power Train · filed with NHTSA Dec 28, 2022 · ODI 11499235
In depth: 2024 Chevrolet Silverado transmission and drivetrain problems → · 2023 Chevrolet Silverado transmission and drivetrain problems → · 2022 Chevrolet Silverado transmission and drivetrain problems → · 2021 Chevrolet Tahoe transmission and drivetrain problems →
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 power train
Source: same model, same component group180 other manufacturer communications filed against these GM models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N262567720 | Service campaign | Sep 17, 2026 | Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may… |
| N252502891-01 | Service campaign | Aug 20, 2026 | Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will rev… |
| N252502890-01 | Service campaign | Aug 20, 2026 | Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will rev… |
| N242471460-01 | Service campaign | Aug 20, 2026 | Certain vehicles may have been built with an Electric Drive Unit mounting bolt that is too long, causing damage to the Drive Unit case. Deal… |
| N262556930-01 | Service campaign | Jun 17, 2026 | Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked. Dealers are to replace the transfer case. |
| N262560680 | Service campaign | Jun 10, 2026 | Certain vehicles may have a condition in which the bolts for the transmission control valve body may be loose or missing. Dealers will retor… |
| N262556930 | Service campaign | Jun 2, 2026 | Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked. Dealers are to replace the transfer case. |
| N252517790 | Service campaign | Oct 14, 2025 | Certain vehicles, equipped with 8L80 or 8L90 Transmissions, may have a condition in which the reaction carrier cracks. Dealers are to replac… |

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, Buick and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM PIT5832K 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 PIT5832K 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 PIT5832K cover?
The manufacturer filed it against 51 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2023 Buick Envision, 2022 Buick Envision, 2021 Buick Envision, 2024 Cadillac CT4, 2023 Cadillac CT4, 2022 Cadillac CT4 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.