GM bulletin 24-NA-147
What it saysThis service bulletin provides information on regular inspection of the Seat Belt Lap Anchor. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Aug 5, 2024, received Sep 4, 2024, about the seat belts. It names 87 model years across Chevrolet, GMC, Buick and Cadillac (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 · Buick · Cadillac.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis service bulletin provides information on regular inspection of the Seat Belt Lap Anchor.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24-NA-147 | Service bulletin | Aug 5, 2024 | 11006849 | PDF, 340 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 46 model years
and 5 more on this site: 2020 Chevrolet Trax, 2019 Chevrolet Trax, 2018 Chevrolet Trax, 2017 Chevrolet Trax, 2016 Chevrolet Trax.
Also filed against model years this site has no page for: 2016 Chevrolet Caprice.
GMC 20 model years
and 12 more on this site: 2016 GMC Sierra 2500HD, 2019 GMC Sierra 3500HD, 2018 GMC Sierra 3500HD, 2017 GMC Sierra 3500HD, 2016 GMC Sierra 3500HD, 2017 GMC Terrain, 2016 GMC Terrain, 2020 GMC Yukon, 2019 GMC Yukon, 2018 GMC Yukon, 2017 GMC Yukon, 2016 GMC Yukon.
Buick 12 model years
and 4 more on this site: 2017 Buick LaCrosse, 2016 Buick LaCrosse, 2017 Buick Verano, 2016 Buick Verano.
Cadillac 9 model years
and 1 more on this site: 2016 Cadillac XTS.
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 86 model years this bulletin names have filed 13,341 complaints with NHTSA since 2015. 12 of them name Seat Belts — 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.
Both 2nd row seatbelt tensioners failed within four years of owning the vehicle (bucket seats) with an estimated cost of $500 to fix. We were advise that this is the result of using a recommended child car seat. It is not acceptable or safe to have a seat belt system that cannot be used properly after a car seat has been used and removed
2018 Chevrolet Suburban · Seat Belts · filed with NHTSA Feb 15, 2022 · ODI 11452059
The contact owns 2017 Buick Encore. The contact stated the front passenger's seat belt and rear passenger's side seat belts failed to lock securely into the buckle. The seat belt was cleaned however, the failure recurred. The vehicle was not taken to be diagnosed nor repaired.
2017 Buick Encore · Seat Belts · filed with NHTSA Apr 8, 2020 · ODI 11320528
The contact owns a 2017 Chevrolet Silverado. The contact stated that the rear driver side seat belt failed to latch. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was 28,619
2017 Chevrolet Silverado · Seat Belts · filed with NHTSA Jul 17, 2018 · ODI 11111910
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 seat belts
Source: same model, same component group3 other manufacturer communications filed against these GM models under the same component group (seat belts), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N242455780 | Service campaign | Aug 19, 2024 | Service Update. On certain vehicles, the rear outboard seat belt(s) may be slow to retract into the C-pillar. Dealers are to inspect, and i… |
| N222393100 | Service bulletin | Feb 20, 2024 | Customer Satisfaction Program - Certain vehicles may have a condition in which the second-row center seatbelt buckle falls between the seats… |
| 99-09-40-005I | Service bulletin | Jul 17, 2023 | This service bulletin provides information on availability for a seat belt extender. |
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, Buick and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 24-NA-147 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 24-NA-147 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 24-NA-147 cover?
The manufacturer filed it against 87 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2016 Buick Enclave, 2022 Buick Encore, 2021 Buick Encore, 2020 Buick Encore, 2019 Buick Encore, 2018 Buick Encore and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.