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Service bulletin 6420

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 id10016113
Published by NHTSA2005-08-31
Manufacturer's number6420
Manufacturer's date2004-12-02
NHTSA componentSTEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

ZF POWER STEERING DIAGNOSTICS ON VEHICLES EQUIPPED (ECPS) ELECTRONICALLY CONTROLLED POWER STEERING. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Steering, Power steering

Vehicles listed
VOLVO S602004, 2005
VOLVO S802004, 2005
VOLVO V702004, 2005
VOLVO XC702004, 2005
VOLVO XC902003, 2004, 2005

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
64172007-09-12. Service bulletin. POWER STEERING FLUID LEAK AT RESERVOIR. *KB