Warranty extensions · GM
GM warranty extensions and special coverage
33 programs GM filed with NHTSA in which it extends, or specially covers, a part beyond the original warranty (Brightdrop, Buick, Cadillac, Chevrolet, GMC) — the term each runs to where the document states it, and the model years it names. Not recalls: the terms are GM’s, they end, and the dealer checks the VIN.
Every GM program on file
Source: NHTSA manufacturer communications| Number | Model years | Component | Term | Dated |
|---|---|---|---|---|
| N242484750-02 Build my claim kit → | 2022 Encore, 2022 Trailblazer | Engine | 15 years or 150,000 miles, whichever comes first | Sep 1, 2026 |
| N242450640-02 Build my claim kit → | 2021 Encore | Engine | 15 years or 150,000 miles, whichever comes first | Sep 1, 2026 |
| N232407740-03 Build my claim kit → | 2020 Encore | Engine | 15 years or 150,000 miles, whichever comes first | Sep 1, 2026 |
| N262546590-01 Service campaign Build my claim kit → | 2026 Enclave, 2025 Enclave, 2026 Colorado +13 | Engine | 5 years or 60,000 miles, whichever comes first | Jul 15, 2026 |
| N262552620 Service campaign Build my claim kit → | 2021 Escalade, 2021 Suburban, 2021 Tahoe +1 | Engine | 15 years or 150,000 miles, whichever comes first | May 11, 2026 |
| N262552610 Service campaign Build my claim kit → | 2023 CT4, 2023 CT5 | Engine | 15 years or 150,000 miles, whichever comes first | May 7, 2026 |
| N252536751-01 Build my claim kit → | 2022 Escalade, 2022 Suburban, 2022 Tahoe +1 | Wheels | 15 years or 150,000 miles, whichever comes first | Apr 20, 2026 |
| N252536751 Build my claim kit → | 2022 Escalade, 2022 Suburban, 2022 Tahoe +1 | Wheels | not in NHTSA’s summary | Apr 17, 2026 |
| N262546590 Service campaign Build my claim kit → | 2026 Enclave, 2025 Enclave, 2026 Traverse +5 | Fuel/Propulsion System | 5 years or 60,000 miles, whichever comes first | Apr 1, 2026 |
| N252494003-02 Service campaign Build my claim kit → | 2024 Escalade, 2023 Escalade, 2022 Escalade +21 | Engine | 10 years or 150,000 miles, whichever comes first | Jan 21, 2026 |
| N252508360 Build my claim kit → | 2022 Malibu | Engine | 15 years or 150,000 miles, whichever comes first | Nov 3, 2025 |
| N252508350 Service campaign Build my claim kit → | 2021 XT5, 2021 XT6, 2021 Blazer +1 | Engine | 15 years or 150,000 miles, whichever comes first | Oct 21, 2025 |
| N242484750-01 Build my claim kit → | 2022 Encore, 2022 Trailblazer | Engine | 15 years or 150,000 miles, whichever comes first | Oct 20, 2025 |
| N242450640-01 Build my claim kit → | 2021 Encore, 2021 Trailblazer | Engine | 15 years or 150,000 miles, whichever comes first | Oct 20, 2025 |
| N232407740-02 Build my claim kit → | 2020 Encore | Engine | 15 years or 150,000 miles, whichever comes first | Oct 20, 2025 |
| N242480631-04 Service campaign | 2021 CT4, 2020 CT4, 2021 CT5 +6 | — | 15 years or 150,000 miles, whichever comes first | Jul 23, 2025 |
| N252494003-01 Service campaign Build my claim kit → | 2024 Escalade, 2023 Escalade, 2022 Escalade +21 | Power Train | 10 years or 150,000 miles, whichever comes first | Jun 26, 2025 |
| N242480631-03 | 2021 CT4, 2020 CT4, 2021 CT5 +6 | — | 15 years or 150,000 miles, whichever comes first | Jun 18, 2025 |
| N252503850 Build my claim kit → | 2023 Enclave, 2023 Traverse | Engine | 15 years or 150,000 miles, whichever comes first | Jun 10, 2025 |
| N242480631-02 Service campaign Build my claim kit → | 2021 CT4, 2020 CT4, 2021 CT5 +5 | Power Train | 15 years or 150,000 miles, whichever comes first | May 27, 2025 |
| N252494003 Service campaign Build my claim kit → | 2024 Escalade, 2023 Escalade, 2022 Escalade +21 | Engine | 10 years or 150,000 miles, whichever comes first | May 23, 2025 |
| N242480631-01 Service campaign Build my claim kit → | 2021 CT4, 2020 CT4, 2020 CT6 +4 | Power Train | 15 years or 150,000 miles, whichever comes first | May 22, 2025 |
| N242480631 Service campaign Build my claim kit → | 2021 CT4, 2020 CT4, 2021 CT5 +6 | Power Train | 15 years or 150,000 miles, whichever comes first | Mar 7, 2025 |
| 22-NA-244 Build my claim kit → | 2019 Cascada, 2018 Cascada, 2017 Cascada +377 | Structure, Equipment | not in NHTSA’s summary | Jan 30, 2025 |
| N242454441-02 Service campaign Build my claim kit → | 2022 Escalade, 2021 Escalade, 2022 Silverado +24 | Power Train | 15 years or 150,000 miles, whichever comes first | Jan 28, 2025 |
| N242484750 Build my claim kit → | 2022 Encore, 2022 Trailblazer | Engine | not in NHTSA’s summary | Jan 14, 2025 |
| N242454441-01 Service campaign Build my claim kit → | 2022 Silverado, 2021 Silverado, 2020 Silverado +21 | Power Train | 15 years or 150,000 miles, whichever comes first | Dec 12, 2024 |
| N242454441 Service bulletin Build my claim kit → | 2021 Escalade, 2022 Silverado, 2021 Silverado +19 | Power Train | 15 years or 150,000 miles, whichever comes first | Nov 27, 2024 |
| N242450640 Build my claim kit → | 2021 Encore, 2021 Trailblazer | Engine | not in NHTSA’s summary | Nov 6, 2024 |
| N242445290 Build my claim kit → | 2021 Colorado, 2021 Canyon | Engine | not in NHTSA’s summary | Aug 13, 2024 |
| N242445280 | 2022 Enclave, 2022 Traverse | — | not in NHTSA’s summary | Jun 12, 2024 |
| N242441120 Build my claim kit → | 2021 Envision, 2021 CT4, 2021 CT5 +5 | Engine | 15 years or 150,000 miles, whichever comes first | Jun 5, 2024 |
| n232407740-01 Service bulletin Build my claim kit → | 2020 Encore | Engine | 15 years or 150,000 miles, whichever comes first | Jan 16, 2024 |
Common questions about GM warranty extensions
Source: NHTSA manufacturer communicationsDoes GM have a warranty extension for my car?
Find your model and year in the list above and open the program: it names the model years GM listed and quotes NHTSA’s summary. Not every vehicle of those years is covered — a GM dealer checks the VIN. Bring the number (for example N242484750-02).
Is a warranty extension a recall?
No. A safety recall carries an NHTSA campaign number and the law requires the manufacturer to fix it free. A warranty extension carries no campaign number and no legal requirement: the years, the miles and what is covered are the manufacturer’s own terms, and when they run out the coverage ends. Recalls have their own pages.
I already paid for this repair. Can I get the money back?
Many programs reimburse owners who paid before the extension was announced; where NHTSA’s summary says so, the program’s page shows it under “Paid for it already?”. The manufacturer decides, from your receipts.