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Service bulletin 30308

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 id10015419
Published by NHTSA2005-07-18
Manufacturer's number30308
Manufacturer's date2005-06-01
NHTSA componentVEHICLE SPEED CONTROL

NHTSA's summary

ROUGH IDLE, RESTRICTED PERFORMANCE AND POOR/HARSH TRANSMISSION SHIFTS WITH THE POSSIBILITY OF DIAGNOSTIC TROUBLE CODES (DTC) P0174, P0171, P0301 TO P0308, P1316 AND P1582 STORED IN THE ENGINE CONTROL MODULE (ECM)

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

Throttle and cruise control

Trouble codes named

P0171, P0174, P0301, P0308, P1316, P1582

Vehicles listed
JAGUAR XJ2004

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
303102005-11-14. Service bulletin. ELECTRONIC THROTTLE BODY - CLEANING PROHIBITED. *TT
303072005-07-15. Service bulletin. ROUGH IDLE AFTER COLD START. *TT