NHTSA Complaint #11593127 — 2016 VOLVO XC90

We are a repair facility and the vehicle arrived for a concern with a weak battery and a battery warning light. The battery was testing bad and was replaced but the other issues persisted. The vehicle was scanned for codes and the codes present in the computer were B139F11, P26DC00 & P059700. After researching these codes we discovered a technical service bulletin related to the same issue and codes (Ref. No: TJ 30268.6.0). The bulletin states "If any of above DTC´s are set in the ECM or CEM for the pre-heated thermostat in the cooling system, and/or if the customer complains of a charging system warning message in the Driver’s Information Module (DIM), follow advice under SERVICE". The bulletin then describes the required service "Replace the thermostat according to instructions in VIDA and erase DTC. Not replacing the thermostat can cause consequential damages". After reading this we followed the service in the bulletin and replaced the thermostat but the issue persist. At this point we have replaced multiple components in compliance with the service bulletin but the battery warning light is still displayed as well as auto start stop disabled & the A/C blower not operating correctly. The bulletin also states that if the issue persist to "submit a vehicle report using function group 2627" but it does not state where the report can be submitted.