GM bulletin PIT6110L
What it saysThis Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Oct 7, 2026, received Oct 14, 2026. It names 92 model years across Chevrolet, GMC, Buick and Cadillac (2023–2027). 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 an issue with the SES MIL and DTC P062B and engineering is currently investigating.
Trouble codes it names: P062B P060C 1 of 2 read from the document itself
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT6110L | Service bulletin | Oct 7, 2026 | 11038460 | PDF, 115 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 4086018 | Use to perform Step 2. Check and clear all DTCs. Perform a battery disconnect and… | 1 hrs |
Read by machine from the document NHTSA serves (3 pages), read Oct 16, 2026. A part number is shown only where it matches GM’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 37 model years
Also filed against model years this site has no page for: 2027 Chevrolet Trailblazer.
GMC 24 model years
and 16 more on this site: 2026 GMC Sierra, 2025 GMC Sierra, 2024 GMC Sierra, 2023 GMC Sierra, 2026 GMC Sierra 2500HD, 2025 GMC Sierra 2500HD, 2024 GMC Sierra 2500HD, 2023 GMC Sierra 2500HD, 2026 GMC Sierra 3500HD, 2025 GMC Sierra 3500HD, 2024 GMC Sierra 3500HD, 2023 GMC Sierra 3500HD, 2026 GMC Yukon, 2025 GMC Yukon, 2024 GMC Yukon, 2023 GMC Yukon.
Buick 9 model years
Also filed against model years this site has no page for: 2027 Buick Encore GX.
Cadillac 22 model years
and 14 more on this site: 2026 Cadillac Escalade, 2025 Cadillac Escalade, 2024 Cadillac Escalade, 2023 Cadillac Escalade, 2025 Cadillac XT4, 2024 Cadillac XT4, 2023 Cadillac XT4, 2026 Cadillac XT5, 2025 Cadillac XT5, 2024 Cadillac XT5, 2023 Cadillac XT5, 2025 Cadillac XT6, 2024 Cadillac XT6, 2023 Cadillac XT6.
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 90 model years this bulletin names have filed 5,846 complaints with NHTSA since 2015.
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.
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 PIT6110L 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 PIT6110L 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 PIT6110L cover?
The manufacturer filed it against 92 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2026 Buick Encore, 2025 Buick Encore, 2024 Buick Encore, 2023 Buick Encore, 2026 Buick Envision, 2025 Buick Envision and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.