GM bulletin PIT6188E
What it saysThis Preliminary information communicates tire pressure lamp concerns caused by interference from OnStar module. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Sep 11, 2024, about the wheels. It names 3 model years across Chevrolet, GMC and Buick (2024–2025). 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 · GMC · Buick.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary information communicates tire pressure lamp concerns caused by interference from OnStar module.
Trouble codes it names: C1171 C1172 C1173 C1174 all 4 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT6188E | Service bulletin | Sep 11, 2024 | 11007702 | PDF, 32 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.
Model years it names
Source: as the manufacturer filed themChevrolet 1 model year
GMC 1 model year
Buick 1 model year
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 3 model years this bulletin names have filed 243 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 wheels
Source: same model, same component group16 other manufacturer communications filed against these GM models under the same component group (wheels), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-156 | Service bulletin | Jun 7, 2025 | This service bulletin provides information on Tire Sidewall Irregularities. |
| 08-03-10-006I | Service bulletin | Mar 14, 2025 | This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of T… |
| 21-NA-043 | Service bulletin | Jan 31, 2025 | This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before bein… |
| 17-NA-271 | Service bulletin | Nov 26, 2024 | Clicking Noise from Front Wheels While Turning at Slow Speeds Condition Some customers may comment on a clicking noise emanating from th… |
| 24-NA-187 | Service bulletin | Sep 12, 2024 | This informational bulletin provides information on Information on Bright PVD (Physical Vapor Deposition) Wheels Appearance and Care. |
| PIT6188D | Service bulletin | Sep 11, 2024 | This Preliminary information communicates tire pressure lamp concerns caused by interference from OnStar module. |
| PIT6188C | Service bulletin | Sep 11, 2024 | This Preliminary information communicates tire pressure lamp concerns caused by interference from OnStar module. |
| PIT6188B | Service bulletin | Sep 6, 2024 | This Preliminary information communicates tire pressure lamp concerns caused by interference from OnStar module. |
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 and Buick, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM PIT6188E 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 PIT6188E 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 PIT6188E cover?
The manufacturer filed it against 3 model years across 3 brands (Chevrolet, GMC and Buick): 2025 Buick Enclave, 2024 Chevrolet Traverse, 2024 GMC Acadia. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.