Manufacturer communication · Service bulletin · 4 brands

GM bulletin 17-NA-073

What it saysThis warranty administration bulletin provides policy information with the field action courtesy transportation policy. NHTSA’s full summary ↓

GM filed this with NHTSA as a service bulletin dated Mar 5, 2025, received May 21, 2018, about the equipment — 4 documents under this number. It names 475 model years across Chevrolet, GMC, Buick and Cadillac (2016–2025). 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 · Cadillac.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

This warranty administration bulletin provides policy information with the field action courtesy transportation policy.

Kind Service bulletin Manufacturer date Mar 5, 2025 Received by NHTSA May 21, 2018 Components Equipment First dated Mar 15, 2017

Documents filed under this number

Document	Kind	Dated	NHTSA id	At NHTSA
17-NA-073	Service bulletin	Mar 5, 2025	11015567	PDF, 116 KB
17-NA-073	Service bulletin	Mar 1, 2024	10251513	PDF, 491 KB
17-NA-073	Service bulletin	Feb 21, 2023	10232287	PDF, 73 KB
17-NA-073	Service bulletin	Mar 15, 2017	10138060	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.

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Model years it names

Source: as the manufacturer filed them

Chevrolet 259 model years

Also filed against model years this site has no page for: 2024 Chevrolet 3500HD; 2016 Chevrolet 4500; 2017 Chevrolet 4500; 2018 Chevrolet 4500; 2019 Chevrolet 4500; 2020 Chevrolet 4500; 2022 Chevrolet 4500; 2017 Chevrolet 4500HD; 2018 Chevrolet 4500HD; 2019 Chevrolet 4500HD; 2020 Chevrolet 4500HD; 2021 Chevrolet 4500HD; 2022 Chevrolet 4500HD; 2023 Chevrolet 4500HD; 2017 Chevrolet 4500XD; 2018 Chevrolet 4500XD; 2019 Chevrolet 4500XD; 2020 Chevrolet 4500XD; 2021 Chevrolet 4500XD; 2022 Chevrolet 4500XD; 2017 Chevrolet 5500HD; 2018 Chevrolet 5500HD; 2019 Chevrolet 5500HD; 2020 Chevrolet 5500HD; 2021 Chevrolet 5500HD; 2022 Chevrolet 5500HD; 2023 Chevrolet 5500HD; 2018 Chevrolet 5500XD; 2019 Chevrolet 5500XD; 2020 Chevrolet 5500XD; 2021 Chevrolet 5500XD; 2022 Chevrolet 5500XD; 2019 Chevrolet 6500; 2019 Chevrolet 6500HD; 2020 Chevrolet 6500HD; 2021 Chevrolet 6500HD; 2022 Chevrolet 6500HD; 2023 Chevrolet 6500HD; 2016 Chevrolet Aveo; 2017 Chevrolet Aveo; 2018 Chevrolet Aveo; 2024 Chevrolet Bolt EV; 2018 Chevrolet C3500; 2016 Chevrolet Caprice; 2017 Chevrolet Caprice; 2018 Chevrolet Caprice; 2016 Chevrolet Caprice Police Pursuit; 2017 Chevrolet Caprice Police Pursuit; 2016 Chevrolet Captiva; 2017 Chevrolet Captiva; 2018 Chevrolet Captiva; 2017 Chevrolet Cheyenne; 2016 Chevrolet Cobalt; 2017 Chevrolet Cobalt; 2019 Chevrolet Duplicate Silverado 5500; 2018 Chevrolet G4500; 2016 Chevrolet LOW Cab Forward 3500; 2017 Chevrolet LOW Cab Forward 3500; 2018 Chevrolet LOW Cab Forward 3500; 2019 Chevrolet LOW Cab Forward 3500 and 21 more.

GMC 87 model years

2025 GMC Acadia 2024 GMC Acadia 2023 GMC Acadia 2022 GMC Acadia 2021 GMC Acadia 2020 GMC Acadia 2019 GMC Acadia 2018 GMC Acadia

Also filed against model years this site has no page for: 2024 GMC 3500HD; 2017 GMC G3500; 2018 GMC G3500; 2022 GMC Hummer EV Pickup.

Buick 48 model years

2019 Buick Cascada 2018 Buick Cascada 2017 Buick Cascada 2016 Buick Cascada 2025 Buick Enclave 2024 Buick Enclave 2023 Buick Enclave 2022 Buick Enclave

and 39 more on this site: 2021 Buick Enclave, 2020 Buick Enclave, 2019 Buick Enclave, 2018 Buick Enclave, 2017 Buick Enclave, 2016 Buick Enclave, 2025 Buick Encore, 2024 Buick Encore, 2023 Buick Encore, 2022 Buick Encore, 2021 Buick Encore, 2020 Buick Encore, 2019 Buick Encore, 2018 Buick Encore, 2017 Buick Encore, 2016 Buick Encore, 2025 Buick Envision, 2024 Buick Envision, 2023 Buick Envision, 2022 Buick Envision, 2021 Buick Envision, 2020 Buick Envision, 2019 Buick Envision, 2018 Buick Envision, 2017 Buick Envision, 2016 Buick Envision, 2025 Buick Envista, 2024 Buick Envista, 2019 Buick LaCrosse, 2018 Buick LaCrosse, 2017 Buick LaCrosse, 2016 Buick LaCrosse, 2020 Buick Regal, 2019 Buick Regal, 2018 Buick Regal, 2017 Buick Regal, 2016 Buick Regal, 2017 Buick Verano, 2016 Buick Verano.

Also filed against model years this site has no page for: 2020 Buick Lacrosse.

Cadillac 81 model years

2019 Cadillac ATS 2018 Cadillac ATS 2017 Cadillac ATS 2016 Cadillac ATS 2018 Cadillac ATS-V 2017 Cadillac ATS-V 2016 Cadillac ATS-V 2025 Cadillac CT4

Also filed against model years this site has no page for: 2021 Cadillac CT6; 2017 Cadillac ELR; 2023 Cadillac Redundant Lyriq; 2024 Cadillac Redundant Lyriq; 2017 Cadillac SRX; 2018 Cadillac SRX; 2019 Cadillac SRX; 2018 Cadillac XT4; 2016 Cadillac XT5; 2020 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 database

Owners of the 379 model years this bulletin names have filed 42,940 complaints with NHTSA since 2015. 17 of them name Equipment — 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.

The contact owns a 2017 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 21V496000 (Equipment) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue.
2017 GMC Sierra 2500HD · Equipment · filed with NHTSA Apr 11, 2022

The contact owns a 2017 GMC Sierra 3500. The contact received notification of NHTSA Campaign Number: 21V496000 (Equipment) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2017 GMC Sierra 3500HD · Equipment · filed with NHTSA Apr 12, 2022

The contact owns a 2019 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 21V496000 (Equipment); however, the part to do the recall repair was not yet available. The dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2019 GMC Sierra 2500HD · Equipment · filed with NHTSA Mar 22, 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 equipment

Source: same model, same component group

265 other manufacturer communications filed against these GM models under the same component group (equipment), newest first. The eight newest are listed; the rest are on the Chevrolet list.

Number	Kind	Dated	NHTSA’s summary
PIT6504	Service bulletin	Apr 1, 2026	This preliminary information communicates a normal characteristic where Some customers may comment that they have a " Forward Collision Unav…
PIP5601B	Service bulletin	Jul 18, 2025	This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challe…
22-NA-161	Service bulletin	May 17, 2025	This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
20-NA-051	Service bulletin	Apr 30, 2025	This informational bulletin provides information on the Low Cab Forward trucks and the Alpine Radio Exchange Program.
23-NA-158	Service bulletin	Apr 8, 2025	This service bulletin provides repair information to correct a customer concern of Radio Software issues. Releasing software Version 170.5.1…
22-NA-096	Service bulletin	Mar 29, 2025	This informational bulletin provides information for dealers/technicians on Customer Education Bulletin for Google Built In Radio.
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…
21-NA-091	Service bulletin	Dec 21, 2024	This service bulletin provides information for customers/dealers/technicians on Normal Camera Display Operation - Flashing Diamond - Spot…

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.

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Common questions

Source: NHTSA, 49 CFR 579.5

Is GM 17-NA-073 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 17-NA-073 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 17-NA-073 cover?

The manufacturer filed it against 475 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2019 Buick Cascada, 2018 Buick Cascada, 2017 Buick Cascada, 2016 Buick Cascada, 2025 Buick Enclave, 2024 Buick Enclave and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.

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