GM bulletin PIP5934
What it saysThis Preliminary information communicates the possibility of dtc U060F or U1345 being set as current or history and clearing the codes then evaluating to confirm they do not return Engineering investigating root cause… NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Jun 30, 2023, received Jul 17, 2023, about the communication. It names 4 model years across Chevrolet and GMC (2022–2023). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates the possibility of dtc U060F or U1345 being set as current or history and clearing the codes then evaluating to confirm they do not return Engineering investigating root cause of condition
Trouble codes it names: U060F U1345
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIP5934 | Service bulletin | Jun 30, 2023 | 10239188 | 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 2 model years
GMC 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 1,555 complaints with NHTSA since 2015. 682 of them name Engine — 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 GMC Sierra, the 52 owners who gave an odometer reading for Engine reported it at a median of 46,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
i FEEL IT IS IN THE FUEL MANAGEMENT SYSTEM When driving along every now and then you can feel a vibration like diving on rumble strips. there is no rhyme or reason for it. I had it to the dealer and they told me that was normal, if you don't want it to do it then drive in 9th gear. I'm not going to shift to 9th every time I drive
2022 GMC Sierra · Engine · filed with NHTSA Jan 3, 2023
The contact owns a 2022 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, he smelled a fuel odor throughout the vehicle. The contact then stated that upon inspecting the vehicle, he noticed that fuel was leaking from the exhaust and smoke came from the front driver’s side of the vehicle.
2022 Chevrolet Silverado 2500HD · Engine · filed with NHTSA Oct 23, 2023
Vehicle continues to go into limp mode causing us to be stranded on the side of the road. It is related to DEF injection system issues. It sounds like this is a known issue with the software. We purchased the vehicle in August and have been unable to use the truck since purchasing as it continues to leave us stranded.
2023 Chevrolet Silverado · Engine · filed with NHTSA Jun 6, 2024
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 communication
Source: same model, same component group7 other manufacturer communications filed against these GM models under the same component group (communication), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| PIC6486C | Service bulletin | Oct 26, 2023 | This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution. |
| PIT6008B | Service bulletin | Oct 9, 2023 | This Preliminary information communicates to dealers a procedure to remove the radio from demo mode |
| PIT6070A | Service bulletin | Oct 6, 2023 | This Preliminary information communicates technicians are to use SPS2 in TLC to reflash the modules listed above that are not communicating. |
| PIT6064A | Service bulletin | Oct 4, 2023 | This Preliminary information communicates information stating Engineering is aware of this concern and working on a repair solution. |
| PIT5966C | Service bulletin | Oct 4, 2023 | This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the… |
| PIP5933 | Service bulletin | Jun 30, 2023 | This Preliminary information communicates to the dealer technician that there is an ECM calibration available to address the DTC P060C on th… |
| PIT6017 | Service bulletin | May 16, 2023 | This Preliminary information communicates how to change a regular vehicle to fleet mode that was not built with the option. |
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 GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM PIP5934 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 PIP5934 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 PIP5934 cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and GMC): 2023 Chevrolet Silverado, 2022 Chevrolet Silverado 2500HD, 2023 GMC Sierra, 2022 GMC Sierra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.