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Service bulletin 9100455

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 id11012379
Published by NHTSA2025-01-07
Manufacturer's number9100455
Manufacturer's date2025-01-04
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemMUFFLER, TAILPIPE

NHTSA's summary

EXHAUST - MUFFLER AND TAILPIPE For Exhaust noise squeak during startup acceleration deceleration please do following: 1. DO NOT remove actuators 2. Verify noise by cycling EEV manually via WiTech 3. Verify noise with test drive (optional) 4. If the noise is confirmed, replace the system without removing the actuators.

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.

Vehicles listed
CHRYSLER 3002020, 2021, 2022, 2023
DODGE CHALLENGER2020, 2021, 2022, 2023
DODGE CHARGER2020, 2021, 2022, 2023

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