Home08-394-25 REV. A · ALFA ROMEO, CHRYSLER, DODGE, JEEP, RAM
ALFA ROMEO, CHRYSLER, DODGE, JEEP, RAM

08-394-25 REV. A

Manufacturer communications

Publication date
2025-12-12
Received by NHTSA
2025-12-17
NHTSA record numbers
11026677

Manufacturer summary

Original wording in English

Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians 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.

NHTSA manufacturer communications ↗

Reported code forms

B1E21

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
JeepGRAND CHEROKEE2022
JeepGRAND CHEROKEE 4XE2026
JeepGRAND CHEROKEE 4XE2025
JeepGRAND CHEROKEE 4XE2024
JeepGRAND CHEROKEE 4XE2023
JeepGRAND CHEROKEE 4XE2022
JeepGRAND CHEROKEE L2026
JeepGRAND CHEROKEE L2025
JeepGRAND CHEROKEE L2024
JeepGRAND CHEROKEE L2023
JeepGRAND CHEROKEE L2022
JeepGRAND WAGONEER2026
JeepGRAND WAGONEER2025
JeepGRAND WAGONEER2024
JeepGRAND WAGONEER2023
JeepGRAND WAGONEER2022
JeepRECON2026
JeepRENEGADE2025
JeepRENEGADE2024
JeepRENEGADE2023
JeepRENEGADE2022
JeepRENEGADE2021
JeepRENEGADE2020
JeepRENEGADE2019
JeepWAGONEER2026
JeepWAGONEER2025
JeepWAGONEER2024
JeepWAGONEER2023
JeepWAGONEER2022
JeepWAGONEER S2026

Data coverage →