GM bulletin PIT6307
What it saysThis Preliminary information communicates with dealers a diagnostic aid for unwanted chime from front park assist sensor harness chaffing. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Dec 17, 2024, received Dec 20, 2024, about the back over prevention. It names 6 model years across Chevrolet and GMC (2023–2024). 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.
Get the next GM bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates with dealers a diagnostic aid for unwanted chime from front park assist sensor harness chaffing.
Trouble codes it names: B19BB B19BC B19BD B19BE B1A30 all 5 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT6307 | Service bulletin | Dec 17, 2024 | 11012023 | PDF, 28 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the warnings for the 2024 Suburban →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themChevrolet 4 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.
Email me new GM bulletins for one of these models
A weekly email, sent only in a week when GM files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 6 model years this bulletin names have filed 1,109 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.
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… |
| PIT5907D | Service bulletin | Dec 11, 2024 | This Preliminary information communicates a issue where the park assist module can set current communication dtc's due to a timing issue and… |
| PIT6289 | Service bulletin | Nov 21, 2024 | This Preliminary information communicates information that Engineering is aware of a concern where the collision / detection alert changes f… |
| PIT6087 | Service bulletin | Nov 15, 2023 | This Preliminary information communicates the proper installation of the Left and Right Side Obstacle Detection Control Modules |
| 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… |
| PIT5832H | Service bulletin | May 11, 2023 | This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not… |
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 PIT6307 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 PIT6307 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 PIT6307 cover?
The manufacturer filed it against 6 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Suburban, 2023 Chevrolet Suburban, 2024 Chevrolet Tahoe, 2023 Chevrolet Tahoe, 2024 GMC Yukon, 2023 GMC Yukon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.