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Service bulletin 18-027-26

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11029756
Published by NHTSA2026-03-05
Manufacturer's number18-027-26
Manufacturer's date2026-02-26
NHTSA componentENGINE; POWER TRAIN

NHTSA's 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. ● Driveline bumps and rumbles when lightly applying the accelerator pedal in traffic or at other low vehicle speeds such as parking lot maneuvers. ● Transmission hard upshifts, rough/bump during low gear 1-2 and 2-3 at 40-64 kph (25-40 mph). This bulletin involves reprogramming the PCM with the latest available software.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Transmission and driveline

Trouble codes named

P061A, P152F, U0418

Vehicles listed
CHRYSLER PACIFICA2021
CHRYSLER VOYAGER2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
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