| Buick Model Year | Buick Warranty | Term Length |
|---|---|---|
| 2018 and 2019 | Bumper-to-Bumper Limited Warranty | 4 years/50,000 miles |
| Corrosion Coverage | 4 years/50,000 miles | |
| Powertrain Limited Warranty | 6 years/70,000 miles | |
| 24/7 Roadside Assistance | 6 years/70,000 miles | |
| Courtesy Transportation | 6 years/70,000 miles | |
| Rust-Through Coverage | 6 years/unlimited miles | |
| eAssist Coverage | 8 years/100,000 miles | |
| 2020 | Bumper-to-Bumper Limited Warranty | 3 years/36,000 miles |
| Corrosion Coverage | 3 years/36,000 miles | |
| Powertrain Limited Warranty | 5 years/60,000 miles | |
| 24/7 Roadside Assistance | 5 years/60,000 miles | |
| Courtesy Transportation | 5 years/60,000 miles | |
| Rust-Through Coverage | 6 years/100,000 miles |