Backup Battery
WARNING: This page is about a different car, the 2022 RAM ProMaster 3500, 2022 RAM ProMaster 2500, and 2022 RAM ProMaster 1500. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable.
- Remove the Global Telematics Box Module (TBM2). Refer to MODULE, GLOBAL TELEMATICS BOX, REMOVAL .
- Slide off and remove backup battery cover (3).
- Remove backup battery (2) from the TBM2 (1).