Service bulletin 11-003-20

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)
Type	Service bulletin
NHTSA id	10180248
Published by NHTSA	2020-09-28
Manufacturer's number	11-003-20
Manufacturer's date	2020-08-01
NHTSA component	STRUCTURE:FRAME AND MEMBERS; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

Drone, Pop, or Rattle Noise From The Passenger Side Floor Area This bulletin involves inspecting the under floor exhaust system and possibly replacing the exhaust pipe assembly and gaskets. Customers may comment on one or more of the following:A drone, pop, or rattle noise, emitting from the passenger floor area while driving usually over large bumps or uneven pavement.

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

Body and frame, Engine, Exhaust and emissions

Vehicles listed
JEEP CHEROKEE	2020

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

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