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Manufacturer communication · Service bulletin · 3 brands

GM bulletin PIP6008B

What it saysThis Preliminary information communicates a possible retainer ring dis-lodged for a DTC P2714, may not have reverse as well. NHTSA’s full summary ↓

GM filed this with NHTSA as a service bulletin dated Jan 9, 2025, received Jan 20, 2025, about the power train. It names 52 model years across Chevrolet, GMC and Cadillac (2019–2025). 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.

One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC · Cadillac.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

This Preliminary information communicates a possible retainer ring dis-lodged for a DTC P2714, may not have reverse as well.

Trouble codes it names: P2714

Kind Service bulletin Manufacturer date Jan 9, 2025 Received by NHTSA Jan 20, 2025 Components Power Train

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
PIP6008BService bulletinJan 9, 202511012943PDF, 32 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 them

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 database

Owners of the 52 model years this bulletin names have filed 9,299 complaints with NHTSA since 2015. 2,019 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 2021 Chevrolet Silverado, the 43 owners who gave an odometer reading for Power Train reported it at a median of 64,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.

Sudden jerk power train and deceleration while driving and towing 5th wheel, immediate loss of power and could have been catastrophic. GM has a known defect that requires immediate attention and investigation to affirm this is a broad national problem with the Allison 10 speed 10L1000 transmission, specifically the defective transmission…

2023 Chevrolet Silverado 2500HD · Power Train · filed with NHTSA Jul 8, 2025

My truck is expierancing the symptoms of recall # n242454440 transmission valve body, its shuttering between shifts and clunking im afraid of the rear wheels locking up from the horror stories I have read the truck is at coulter Gmc now for exact diag but from everything I have read this is common issue for this recall that my VIN does…

2022 GMC Sierra 3500HD · Power Train · filed with NHTSA Sep 10, 2025

August of 2025 purchased a certified GMC Sierra 3500. The truck had been traded in May and sat in their service department waiting on a valve body. At this point, we knew this. had done research on it, and felt confident in being told the valve body was completely replaced and now working…. Worst mistake we’ve made in a long time.

2023 GMC Sierra 3500HD · Power Train · filed with NHTSA Feb 24, 2026

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 group

127 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.

NumberKindDatedNHTSA’s summary
N262567720Service campaignSep 17, 2026Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may…
N252502891-01Service campaignAug 20, 2026Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will rev…
N262560680Service campaignJun 10, 2026Certain vehicles may have a condition in which the bolts for the transmission control valve body may be loose or missing. Dealers will retor…
N252517790Service campaignOct 14, 2025Certain vehicles, equipped with 8L80 or 8L90 Transmissions, may have a condition in which the reaction carrier cracks. Dealers are to replac…
N242454441 -03Service campaignOct 9, 2025Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure w…
25-NA-080Service bulletinSep 4, 2025This service bulletin provides a procedure to overhaul the control valve to replace a plate and worn down check ball to correct the customer…
N252494003-01Service campaignJun 26, 2025Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have…
24-NA-262Service bulletinJun 3, 2025This bulletin helps aid the tech in possible 10L100 transmission noise that may be normal or abnormal depending on the concern noted.

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 and Cadillac, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is GM PIP6008B 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 PIP6008B 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 PIP6008B cover?

The manufacturer filed it against 52 model years across 3 brands (Chevrolet, GMC and Cadillac): 2025 Cadillac CT5, 2024 Cadillac CT5, 2023 Cadillac CT5, 2022 Cadillac CT5, 2021 Cadillac CT5, 2025 Cadillac Escalade and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.