Brightdrop 600 Elcv 2010–2026 — technical service bulletin
Bulletin 25-NA-156 · NHTSA communication 11026104 · issued Jun 7, 2025
Technical service bulletin
communication type
Wheels
component
2010–2026
model years
60
vehicle entries
Official summary
This service bulletin provides information on Tire Sidewall Irregularities.
Vehicles covered
- 2023 Brightdrop 600 Elcv
- 2022 Brightdrop EV600
- 2024 Brightdrop Zevo 400
- 2023 Brightdrop Zevo 600
- 2024 Brightdrop Zevo 600
- 2016 Buick Cascada
- 2017 Buick Cascada
- 2018 Buick Cascada
- 2019 Buick Cascada
- 2010 Buick Enclave
- 2011 Buick Enclave
- 2012 Buick Enclave
- 2013 Buick Enclave
- 2014 Buick Enclave
- 2015 Buick Enclave
- 2016 Buick Enclave
- 2017 Buick Enclave
- 2018 Buick Enclave
- 2019 Buick Enclave
- 2020 Buick Enclave
- 2021 Buick Enclave
- 2022 Buick Enclave
- 2023 Buick Enclave
- 2024 Buick Enclave
- 2025 Buick Enclave
- 2026 Buick Enclave
- 2013 Buick Encore
- 2014 Buick Encore
- 2015 Buick Encore
- 2016 Buick Encore
- 2017 Buick Encore
- 2018 Buick Encore
- 2019 Buick Encore
- 2020 Buick Encore
- 2021 Buick Encore
- 2022 Buick Encore
- 2023 Buick Encore
- 2024 Buick Encore
- 2025 Buick Encore
- 2026 Buick Encore
- 2020 Buick Encore GX
- 2021 Buick Encore GX
- 2022 Buick Encore GX
- 2023 Buick Encore GX
- 2024 Buick Encore GX
- 2025 Buick Encore GX
- 2026 Buick Encore GX
- 2016 Buick Envision
- 2017 Buick Envision
- 2018 Buick Envision
- 2019 Buick Envision
- 2020 Buick Envision
- 2021 Buick Envision
- 2022 Buick Envision
- 2023 Buick Envision
- 2024 Buick Envision
- 2025 Buick Envision
- 2026 Buick Envision
- 2024 Buick Envista
- 2025 Buick Envista
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.