(Pt 2) EV STUMPS the Dealer?! ('24 Cadillac Lyriq EV: 12V Battery goes DEAD; Car is IMMOBILIZED?)

Description: Let's see how far we can get in rectifying this 2024 Cadillac EV that STUMPED the Dealer.

Based on the data, there is a GLITCH in the Software which is turning OFF the 12V Battery "Maintenance Mode" when the car is parked, which allows the 12V battery to get completely DRAINED overnight!

The "Battery Energy Control Module" (BECM) is responsible for monitoring and Charging the 12V battery. Perhaps there is a Software Update that needs to be performed?

After Reprogramming the BECM, the Cadillac seems to be stable...but we're not celebrating too early ;)

TOPDON TORNADO 90000 BATTERY CHARGER:
https://www.amazon.com/dp/B09XV64Q49?linkCode=ssc&tag=onamzpineholl-20&creativeASIN=B09XV64Q49&asc_item-id=amzn1.ideas.UKPVIGM4POWZ&ref_=aip_sf_list_spv_ofs_mixed_d_asin

TOPDON Phoenix Plus:
https://www.amazon.com/dp/B091BQNR3S?linkCode=ssc&tag=onamzpineholl-20&creativeASIN=B091BQNR3S&asc_item-id=amzn1.ideas.NHZL00NIDEPF&ref_=aip_sf_list_spv_ofs_mixed_d_asin

AUTEL MaxiCOM MK808S-TS:
https://www.amazon.com/dp/B00LPIRY6E?linkCode=ssc&tag=onamzpineholl-20&creativeASIN=B00LPIRY6E&asc_item-id=amzn1.ideas.NHZL00NIDEPF&ref_=aip_sf_list_spv_ofs_mixed_d_asin

Enjoy!
Ivan Close description