Service bulletins for the 2003 Lexus IS
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.
28 on file from NHTSA, as of 2026-10-19.
By type
By component
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| L-SB-0021-14 Rev | 2018-04-02. Service bulletin. EQUIPMENT. TSB: Revision Notice: Applicability section has been updated to include 2016-2017 applicable model year Lexus vehicles. The Repair Procedure section, Required Tools & Equipment section, and the Repair Procedure section has been updated. 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. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information. |
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| L-SB-0143-11 Rev | 2018-04-02. Service bulletin. SEATS; AIR BAGS:SIDE/WINDOW. Beginning in 1998, Lexus introduced side airbags as optional equipment. Lexus does NOT recommend replacement of original seat covers with non-Lexus leather or other seat cover materials on vehicles due to the following: Seat covers NOT recommended by Lexus may affect side airbag performance, in general or in part, during an accident. Modifications that negatively affect side airbag performance can result in severe occupant injuries. Seat covers are an integral part of this safety system. Replacing fabric seat covers with non-Lexus leather or other seat cover materials may compromise the effectiveness of this safety system. The design of the seat is complex, integrating safety and strength with comfort and luxury. Lexus strongly discourages modifying original equipment seats that have optional side airbags. Additionally, Lexus strongly advises against the installation or use of aftermarket seat covers, which could impair the performance of the side airbags in the event of an accident. |
| LSB-0059-12 | 2012-09-12. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. LEXUS: PRECAUTION INFORMATION ON REMOVAL, INSPECTION, INSTALLATION OF ACCELERATOR PEDAL SENSOR ASSEMBLY, WHICH REQUIRES NO LUBRICATION. MODELS 2001-13 CT200H, ES300, 300H, 330, 350, GS300, 350, 450, 450H, 460, GX460, 470, HS250H, IS F, IS250, 250C, 350, 350C, LFA, LS430, 460, 600H, LX470, 570, RX330, 350, 400H, 450H, SC430. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.