GM bulletin PIT5544G
What it saysThis Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated May 22, 2023, received Jun 13, 2023, about the back over prevention. It names 18 model years across Chevrolet and GMC (2016–2024). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT5544G | Service bulletin | May 22, 2023 | 10237675 | 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 9 model years
GMC 9 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 18 model years this bulletin names have filed 1,252 complaints with NHTSA since 2015. 346 of them name Power Train, Steering — 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 2016 Chevrolet Silverado 2500HD, the 37 owners who gave an odometer reading for Steering reported it at a median of 30,000 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
On July 5, 2024 while traveling and towing our 5th wheel (7,200lbs) with our 2017 GMC 2500 6.0L GAS engine (with the 6L90 transmission) and without any previous warnings or signals the check engine light illuminated and approximately 10 mins later the vehicle went into limp mode with "Transmission Hot.....Idle Engine" warning, causing us…
2017 GMC Sierra 2500HD · Power Train · filed with NHTSA Jul 16, 2024
There is an issue that is causing the batteries to die. This in return causes the Vehicle to go into Limp home mode with no warning. The "issue" was supposed to be resolved by the Dealer in March 2022. The resolution was that one battery was bad. The vehicle is equipped with two batteries. Each of which is sufficient to run the vehicle.
2020 GMC Sierra 2500HD · Power Train · filed with NHTSA Jan 3, 2023
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 back over prevention
Source: same model, same component group7 other manufacturer communications filed against these GM models under the same component group (back over prevention), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 17-NA-331 | Service bulletin | Jan 17, 2025 | Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temp… |
| PIT5697D | Service bulletin | Dec 4, 2024 | This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview… |
| PIP5847B | Service bulletin | Nov 17, 2023 | This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine noise due to excessive w… |
| PIP5847A | Service bulletin | Aug 2, 2023 | This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine noise due to excessive w… |
| PIP5395G | Service bulletin | Jul 19, 2023 | This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattl… |
| PIT5990A | Service bulletin | Jul 12, 2023 | This Preliminary information communicates an issue with a wind noise while driving at highway speeds and dealers are to inspect the body har… |
| PIT5697C | Service bulletin | Jun 20, 2023 | This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview… |
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 PIT5544G 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 PIT5544G 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 PIT5544G cover?
The manufacturer filed it against 18 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado 2500HD, 2023 Chevrolet Silverado 2500HD, 2022 Chevrolet Silverado 2500HD, 2021 Chevrolet Silverado 2500HD, 2020 Chevrolet Silverado 2500HD, 2019 Chevrolet Silverado 2500HD and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.