Chrysler Pacifica 2021 — technical service bulletin
Bulletin 18-027-26 · NHTSA communication 11029756 · issued Feb 26, 2026
Technical service bulletin
communication type
Power Train
component
2021
model years
2
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, SYMPTOM: a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● **P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation.** ● U0418-00 - Implausible Data Received From Brake System Control Module 1. ● P061A - Level 2 Torque Performance. Customers may also experience one or more of the following: ● **Engine Stop/Start (ESS) is inoperable.** ● Battery depletes. ● Rough shifting while driving. ● D
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.