GM bulletin PIE0810A
What it saysThis engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to he Malfunction Indicator Lamp (MIL) illuminated on the Driver… NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Jan 11, 2025, received Jan 28, 2025, about the fuel/propulsion system. It names 4 model years across Chevrolet and Buick (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 · Buick.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to he Malfunction Indicator Lamp (MIL) illuminated on the Driver Information Center (DIC).
Trouble codes it names: P0442 all 1 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIE0810A | Service bulletin | Jan 11, 2025 | 11013147 | PDF, 123 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 4089398 | Engineering Information - (MIL) Illuminated on (DIC), DTC P0442 Set | 0.5 hrs |
Read by machine from the document NHTSA serves (2 pages), read Sep 30, 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 2 model years
Buick 2 model years
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 4 model years this bulletin names have filed 178 complaints with NHTSA since 2015. 109 of them name Electrical System, Engine, Fuel/Propulsion 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.
Second complete powertrain failure on March 14, 2026 at 13,993 miles, nine days after first repair (complete transmission replacement for bone-dry sealed transmission). Symptoms: sudden loss of power on highway (unable to exceed 20 mph with accelerator fully depressed), hollow sound, noise described as "like a rock tumbling around…
2025 Buick Encore · Engine · filed with NHTSA Apr 1, 2026 · ODI 11728488
The contact owns a 2025 Buick Encore GX. The contact stated that after refueling the vehicle, the gas pump nozzle was difficult to remove from the fuel filler neck when the vehicle was done refueling. The contact stated that there was one fueling station that he avoided due to the spring that was wrapped around the nozzle.
2025 Buick Encore · Fuel/Propulsion System · filed with NHTSA Jan 7, 2026 · ODI 11709394
My vehicle started overheating out of no where towed it to the shop, it’s been there for 2 weeks they’re actively waiting for a manufacturer engineer to tell them what to do because they can’t figure out how to fix it. On top of that there have been a lot of overheating issues cause by different parts on the vehicle.
2025 Chevrolet Trailblazer · Engine · filed with NHTSA Apr 16, 2026 · ODI 11731715
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 fuel/propulsion system
Source: same model, same component group10 other manufacturer communications filed against these GM models under the same component group (fuel/propulsion system), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| A252528630-03 | Service campaign | Feb 9, 2026 | Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the… |
| A252528630-02 | Service campaign | Jan 28, 2026 | Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the… |
| A252528630-01 | Service campaign | Jan 7, 2026 | Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the… |
| A252528630 | Service campaign | Dec 9, 2025 | Service Update. On certain vehicles listed above, under certain driving conditions and due to differences in flow rate characteristics, the… |
| 24-NA-139 | Service bulletin | Apr 12, 2025 | This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fue… |
| PIP6037 | Service bulletin | Jan 16, 2025 | This Preliminary information communicates a potential for dtc p0496 to fail due to damaged purge solenoid valve O-rings. |
| PIP5929A | Service bulletin | Dec 16, 2024 | This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A. |
| 05-06-04-022V | Service bulletin | Aug 7, 2024 | This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet and Buick, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM PIE0810A 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 PIE0810A 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 PIE0810A cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and Buick): 2025 Buick Encore, 2025 Buick Envista, 2025 Chevrolet Trailblazer, 2025 Chevrolet Trax. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.