GM bulletin 20-NA-159
What it saysThis Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Oct 30, 2023, received May 31, 2022, about the wheels — 5 documents under this number. It names 421 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 Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 20-NA-159 | Service bulletin | Oct 30, 2023 | 10245250 | PDF, 557 KB |
| 20-NA-159 | Service bulletin | Sep 28, 2023 | 10244202 | PDF, 479 KB |
| 20-NA-159 | Service bulletin | Mar 8, 2023 | 10233338 | PDF, 705 KB |
| 20-NA-159 | Service bulletin | Jun 6, 2022 | 10214501 | PDF, 580 KB |
| 20-NA-159 | Service bulletin | May 11, 2022 | 10212910 | PDF, 555 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 226 model years
and 123 more on this site: 2019 Chevrolet Corvette, 2018 Chevrolet Corvette, 2017 Chevrolet Corvette, 2016 Chevrolet Corvette, 2019 Chevrolet Cruze, 2018 Chevrolet Cruze, 2017 Chevrolet Cruze, 2016 Chevrolet Cruze, 2024 Chevrolet Equinox, 2023 Chevrolet Equinox, 2022 Chevrolet Equinox, 2021 Chevrolet Equinox, 2020 Chevrolet Equinox, 2019 Chevrolet Equinox, 2018 Chevrolet Equinox, 2017 Chevrolet Equinox, 2016 Chevrolet Equinox, 2023 Chevrolet Express, 2022 Chevrolet Express, 2021 Chevrolet Express, 2020 Chevrolet Express, 2019 Chevrolet Express, 2018 Chevrolet Express, 2017 Chevrolet Express, 2016 Chevrolet Express, 2020 Chevrolet Impala, 2019 Chevrolet Impala, 2018 Chevrolet Impala, 2017 Chevrolet Impala, 2016 Chevrolet Impala, 2024 Chevrolet Malibu, 2023 Chevrolet Malibu, 2022 Chevrolet Malibu, 2021 Chevrolet Malibu, 2020 Chevrolet Malibu, 2019 Chevrolet Malibu, 2018 Chevrolet Malibu, 2017 Chevrolet Malibu, 2016 Chevrolet Malibu, 2017 Chevrolet SS, 2016 Chevrolet SS, 2024 Chevrolet Silverado, 2023 Chevrolet Silverado, 2022 Chevrolet Silverado, 2021 Chevrolet Silverado, 2020 Chevrolet Silverado, 2019 Chevrolet Silverado, 2018 Chevrolet Silverado, 2017 Chevrolet Silverado, 2016 Chevrolet Silverado, 2024 Chevrolet Silverado 2500HD, 2023 Chevrolet Silverado 2500HD, 2022 Chevrolet Silverado 2500HD, 2021 Chevrolet Silverado 2500HD, 2020 Chevrolet Silverado 2500HD, 2019 Chevrolet Silverado 2500HD, 2018 Chevrolet Silverado 2500HD, 2017 Chevrolet Silverado 2500HD, 2016 Chevrolet Silverado 2500HD, 2024 Chevrolet Silverado 3500HD, 2023 Chevrolet Silverado 3500HD, 2022 Chevrolet Silverado 3500HD, 2021 Chevrolet Silverado 3500HD, 2020 Chevrolet Silverado 3500HD, 2019 Chevrolet Silverado 3500HD, 2018 Chevrolet Silverado 3500HD, 2017 Chevrolet Silverado 3500HD, 2016 Chevrolet Silverado 3500HD, 2020 Chevrolet Sonic, 2019 Chevrolet Sonic, 2018 Chevrolet Sonic, 2017 Chevrolet Sonic, 2016 Chevrolet Sonic, 2022 Chevrolet Spark, 2021 Chevrolet Spark, 2020 Chevrolet Spark, 2019 Chevrolet Spark, 2018 Chevrolet Spark, 2017 Chevrolet Spark, 2016 Chevrolet Spark, 2024 Chevrolet Suburban, 2023 Chevrolet Suburban, 2022 Chevrolet Suburban, 2021 Chevrolet Suburban, 2020 Chevrolet Suburban, 2019 Chevrolet Suburban, 2018 Chevrolet Suburban, 2017 Chevrolet Suburban, 2016 Chevrolet Suburban, 2024 Chevrolet Tahoe, 2023 Chevrolet Tahoe, 2022 Chevrolet Tahoe, 2021 Chevrolet Tahoe, 2020 Chevrolet Tahoe, 2019 Chevrolet Tahoe, 2018 Chevrolet Tahoe, 2017 Chevrolet Tahoe, 2016 Chevrolet Tahoe, 2024 Chevrolet Trailblazer, 2023 Chevrolet Trailblazer, 2022 Chevrolet Trailblazer, 2021 Chevrolet Trailblazer, 2024 Chevrolet Traverse, 2023 Chevrolet Traverse, 2022 Chevrolet Traverse, 2021 Chevrolet Traverse, 2020 Chevrolet Traverse, 2019 Chevrolet Traverse, 2018 Chevrolet Traverse, 2017 Chevrolet Traverse, 2016 Chevrolet Traverse, 2024 Chevrolet Trax, 2022 Chevrolet Trax, 2021 Chevrolet Trax, 2020 Chevrolet Trax, 2019 Chevrolet Trax, 2018 Chevrolet Trax, 2017 Chevrolet Trax, 2016 Chevrolet Trax, 2019 Chevrolet Volt, 2018 Chevrolet Volt, 2017 Chevrolet Volt, 2016 Chevrolet Volt.
Also filed against model years this site has no page for: 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; 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; 2018 Chevrolet 5500XD; 2019 Chevrolet 5500XD; 2020 Chevrolet 5500XD; 2021 Chevrolet 5500XD; 2022 Chevrolet 5500XD; 2019 Chevrolet 6500; 2022 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; 2018 Chevrolet G4500; 2016 Chevrolet N300; 2018 Chevrolet N300; 2017 Chevrolet N300 MAX; 2021 Chevrolet Onix; 2016 Chevrolet Optra; 2017 Chevrolet Orlando; 2016 Chevrolet S10; 2017 Chevrolet S10; 2018 Chevrolet S10; 2018 Chevrolet SS; 2017 Chevrolet Trailblazer; 2018 Chevrolet Trailblazer and 3 more.
GMC 79 model years
and 66 more on this site: 2016 GMC Acadia, 2024 GMC Canyon, 2023 GMC Canyon, 2022 GMC Canyon, 2021 GMC Canyon, 2020 GMC Canyon, 2019 GMC Canyon, 2018 GMC Canyon, 2017 GMC Canyon, 2016 GMC Canyon, 2024 GMC Hummer EV, 2023 GMC Hummer EV, 2024 GMC Savana, 2023 GMC Savana, 2022 GMC Savana, 2021 GMC Savana, 2020 GMC Savana, 2019 GMC Savana, 2018 GMC Savana, 2017 GMC Savana, 2016 GMC Savana, 2024 GMC Sierra, 2023 GMC Sierra, 2022 GMC Sierra, 2021 GMC Sierra, 2020 GMC Sierra, 2019 GMC Sierra, 2018 GMC Sierra, 2017 GMC Sierra, 2016 GMC Sierra, 2024 GMC Sierra 2500HD, 2023 GMC Sierra 2500HD, 2022 GMC Sierra 2500HD, 2021 GMC Sierra 2500HD, 2020 GMC Sierra 2500HD, 2019 GMC Sierra 2500HD, 2018 GMC Sierra 2500HD, 2017 GMC Sierra 2500HD, 2016 GMC Sierra 2500HD, 2024 GMC Sierra 3500HD, 2023 GMC Sierra 3500HD, 2022 GMC Sierra 3500HD, 2021 GMC Sierra 3500HD, 2020 GMC Sierra 3500HD, 2019 GMC Sierra 3500HD, 2018 GMC Sierra 3500HD, 2017 GMC Sierra 3500HD, 2016 GMC Sierra 3500HD, 2024 GMC Terrain, 2023 GMC Terrain, 2022 GMC Terrain, 2021 GMC Terrain, 2020 GMC Terrain, 2019 GMC Terrain, 2018 GMC Terrain, 2017 GMC Terrain, 2016 GMC Terrain, 2024 GMC Yukon, 2023 GMC Yukon, 2022 GMC Yukon, 2021 GMC Yukon, 2020 GMC Yukon, 2019 GMC Yukon, 2018 GMC Yukon, 2017 GMC Yukon, 2016 GMC Yukon.
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; 2018 GMC Savanna.
Buick 44 model years
and 35 more on this site: 2020 Buick Enclave, 2019 Buick Enclave, 2018 Buick Enclave, 2017 Buick Enclave, 2016 Buick Enclave, 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, 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, 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 72 model years
and 55 more on this site: 2023 Cadillac CT4, 2022 Cadillac CT4, 2021 Cadillac CT4, 2020 Cadillac CT4, 2024 Cadillac CT5, 2023 Cadillac CT5, 2022 Cadillac CT5, 2021 Cadillac CT5, 2020 Cadillac CT5, 2020 Cadillac CT6, 2019 Cadillac CT6, 2018 Cadillac CT6, 2017 Cadillac CT6, 2016 Cadillac CT6, 2019 Cadillac CTS, 2018 Cadillac CTS, 2017 Cadillac CTS, 2016 Cadillac CTS, 2018 Cadillac CTS-V, 2016 Cadillac ELR, 2024 Cadillac Escalade, 2023 Cadillac Escalade, 2022 Cadillac Escalade, 2021 Cadillac Escalade, 2020 Cadillac Escalade, 2019 Cadillac Escalade, 2018 Cadillac Escalade, 2017 Cadillac Escalade, 2016 Cadillac Escalade, 2024 Cadillac Lyriq, 2023 Cadillac Lyriq, 2016 Cadillac SRX, 2024 Cadillac XT4, 2023 Cadillac XT4, 2022 Cadillac XT4, 2021 Cadillac XT4, 2020 Cadillac XT4, 2019 Cadillac XT4, 2024 Cadillac XT5, 2023 Cadillac XT5, 2022 Cadillac XT5, 2021 Cadillac XT5, 2020 Cadillac XT5, 2019 Cadillac XT5, 2018 Cadillac XT5, 2017 Cadillac XT5, 2024 Cadillac XT6, 2023 Cadillac XT6, 2022 Cadillac XT6, 2021 Cadillac XT6, 2020 Cadillac XT6, 2019 Cadillac XTS, 2018 Cadillac XTS, 2017 Cadillac XTS, 2016 Cadillac XTS.
Also filed against model years this site has no page for: 2021 Cadillac CT6; 2017 Cadillac ELR; 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 databaseOwners of the 343 model years this bulletin names have filed 42,102 complaints with NHTSA since 2015. 525 of them name Wheels, Tires — 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 2017 Chevrolet Corvette, the 164 owners who gave an odometer reading for Wheels reported it at a median of 15,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I'm recalling an incident I reported last year. GM refused to honor the service bulletin, and Palmen Buick GMC Cadillac in Kenosha, WI refused to work with Michelin. At 30,000 miles, I now hydroplane, and when I had my car serviced a few weeks before my warranty was set to expire, the dealership again refused to honor the prorate chart…
2019 Buick Envision · Tires · filed with NHTSA Oct 8, 2023 · ODI 11548887
245/35 ZP 19 89Y With only 16,000 miles on this vehicle, the sidewall began to bulge, and then tore, with zero damage to the rim of the wheel, and all air was lost. Luckily it is a run flat tire so it didn't completely deflate, however, I had great concern that with the tear the tire might roll out of the rim on a turn possibly causing…
2022 Chevrolet Corvette · Tires · filed with NHTSA Jan 16, 2026 · ODI 11711388
The contact owns a 2023 Chevrolet Malibu equipped with Continental Tires, Tire Line: Pro Contact, Tire Size: 245/40/R19, DOT Number: 6Y66WBR27. The contact stated that while his wife was driving at highway speeds, there was a blowout of the front driver's side tire. The cause of the failure was not yet determined. The tire was replaced.
2023 Chevrolet Malibu · Tires · filed with NHTSA Aug 29, 2024 · ODI 11611653
In depth: 2019 Chevrolet Corvette wheel problems → · 2017 Chevrolet Corvette wheel problems → · 2016 Chevrolet Corvette wheel problems →
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 group48 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 |
|---|---|---|---|
| N252536751-01 | Warranty extension | Apr 20, 2026 | Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual… |
| N252536751 | Warranty extension | Apr 17, 2026 | Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual… |
| N252494250 | Service campaign | Aug 26, 2025 | Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’… |
| 25-NA-156 | Service bulletin | Jun 7, 2025 | This service bulletin provides information on Tire Sidewall Irregularities. |
| 16-NA-331 | Service bulletin | Apr 30, 2025 | This warranty administration bulletin provides the information on General Motors Tire Warranty Policies and Procedures for Low Cab Forward M… |
| 22-NA-183 | Service bulletin | Apr 3, 2025 | This service bulletin advises the technician of a different tire/rim option that can be used to correct a customer concern of poor ride qual… |
| 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… |
| 25-NA-035 | Service bulletin | Feb 19, 2025 | This service bulletin provides information on 2024 Silverado RST Sidewinder Available (enabling all four wheels to turn in same direction… |
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 20-NA-159 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 20-NA-159 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 20-NA-159 cover?
The manufacturer filed it against 421 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2019 Buick Cascada, 2018 Buick Cascada, 2017 Buick Cascada, 2016 Buick Cascada, 2024 Buick Enclave, 2023 Buick Enclave and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.