2003 Lexus LS430Service bulletins
2003 Lexus LS430 Technical Service Bulletins
55 technical service bulletins (TSBs) are on record for the 2003 Lexus LS430. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.
- 10034245Feb 4, 2010Electrical system. Lexus: techstream ecu flash reprogramming procedure. Flash reprogramming allows the ecu software to be updated without replacing the ecu. Flash calibration updates for specific vehicle models/ecus are released as field fix procedures described in individual service bulletins.
- 10020143May 25, 2006Fuel system. Fuel tank difficult to fill.
- 10015848Mar 9, 2005Exterior lighting. '03 ls430 repair manual correction for the headlight and taillight system. 00245-rm988-u2. *tt '02 ls430. 00245-rm847-u2.
- 10016396Oct 30, 2003Electrical system. Radio and player. Electric wiring diagram. 00245-ewd50-4u.
- 10017720Dec 21, 2001Steering. Repair manual supplement - vehicle pulling to one side. All lexus 2002 - 2006 models. *tt all '02 - '07 models. Lexus.
← All problems reported for the 2003 Lexus LS430
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.