Chrysler Pacifica 2017 — technical service bulletin
Bulletin 9004364 · NHTSA communication 10221099 · issued Apr 7, 2021
Technical service bulletin
communication type
Electrical System
component
2017
model years
1
vehicle entries
Official summary
BATTERY (Auxiliary) If the auxiliary battery has failed GR8 testing, please check TSB 18-002-19 REV A for applicability prior to the battery replacement. This PCM software enhances the Active Grill Shutter cooling efficiency to address auxiliary battery overheat/dry out conditions.
Vehicles covered
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.