RAM 1500 2019–2026 — technical service bulletin
Bulletin 108409 · NHTSA communication 11025507 · issued Nov 6, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2019–2026
model years
40
vehicle entries
Official summary
CORE - HEATER
Vehicles covered
- 2019 RAM 1500
- 2020 RAM 1500
- 2021 RAM 1500
- 2022 RAM 1500
- 2023 RAM 1500
- 2024 RAM 1500
- 2025 RAM 1500
- 2026 RAM 1500
- 2019 RAM 2500
- 2020 RAM 2500
- 2021 RAM 2500
- 2022 RAM 2500
- 2023 RAM 2500
- 2024 RAM 2500
- 2025 RAM 2500
- 2026 RAM 2500
- 2019 RAM 3500
- 2020 RAM 3500
- 2021 RAM 3500
- 2022 RAM 3500
- 2023 RAM 3500
- 2024 RAM 3500
- 2025 RAM 3500
- 2026 RAM 3500
- 2019 RAM 4500
- 2020 RAM 4500
- 2021 RAM 4500
- 2022 RAM 4500
- 2023 RAM 4500
- 2024 RAM 4500
- 2025 RAM 4500
- 2026 RAM 4500
- 2019 RAM 5500
- 2020 RAM 5500
- 2021 RAM 5500
- 2022 RAM 5500
- 2023 RAM 5500
- 2024 RAM 5500
- 2025 RAM 5500
- 2026 RAM 5500
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.