Alfa Romeo Giulia 2019–2026 — technical service bulletin
Bulletin 08-394-25 · NHTSA communication 11026549 · issued Dec 5, 2025
Technical service bulletin
communication type
Electrical System
component
2019–2026
model years
60
vehicle entries
Official summary
Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present echnicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure
Vehicles covered
- 2019 Alfa Romeo Giulia
- 2020 Alfa Romeo Giulia
- 2021 Alfa Romeo Giulia
- 2022 Alfa Romeo Giulia
- 2023 Alfa Romeo Giulia
- 2024 Alfa Romeo Giulia
- 2025 Alfa Romeo Giulia
- 2026 Alfa Romeo Giulia
- 2019 Alfa Romeo Stelvio
- 2020 Alfa Romeo Stelvio
- 2021 Alfa Romeo Stelvio
- 2023 Alfa Romeo Stelvio
- 2024 Alfa Romeo Stelvio
- 2025 Alfa Romeo Stelvio
- 2026 Alfa Romeo Stelvio
- 2025 Alfa Romeo Tonale
- 2026 Alfa Romeo Tonale
- 2024 Alfa Romeo Tonale PHEV
- 2022 Chrysler Pacifica
- 2023 Chrysler Pacifica
- 2024 Chrysler Pacifica
- 2025 Chrysler Pacifica
- 2026 Chrysler Pacifica
- 2022 Chrysler Pacifica Plug-In Hybrid
- 2023 Chrysler Pacifica Plug-In Hybrid
- 2024 Chrysler Pacifica Plug-In Hybrid
- 2025 Chrysler Pacifica Plug-In Hybrid
- 2026 Chrysler Pacifica Plug-In Hybrid
- 2022 Chrysler Voyager
- 2023 Chrysler Voyager
- 2024 Chrysler Voyager
- 2025 Chrysler Voyager
- 2026 Chrysler Voyager
- 2023 Dodge Challenger
- 2023 Dodge Charger
- 2024 Dodge Charger
- 2025 Dodge Charger
- 2026 Dodge Charger
- 2022 Dodge Durango
- 2023 Dodge Durango
- 2024 Dodge Durango
- 2025 Dodge Durango
- 2026 Dodge Durango
- 2023 Dodge Hornet
- 2024 Dodge Hornet
- 2025 Dodge Hornet
- 2026 Dodge Hornet
- 2022 Jeep Compass
- 2023 Jeep Compass
- 2024 Jeep Compass
- 2025 Jeep Compass
- 2026 Jeep Compass
- 2022 Jeep Gladiator
- 2023 Jeep Gladiator
- 2024 Jeep Gladiator
- 2025 Jeep Gladiator
- 2026 Jeep Gladiator
- 2022 Jeep Grand Cherokee
- 2023 Jeep Grand Cherokee
- 2024 Jeep Grand Cherokee
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.