2003 Toyota Corolla Technical Service Bulletins

122 technical service bulletins (TSBs) are on record for the 2003 Toyota Corolla. 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.

• 10060828Jan 30, 2013Visibility (wipers, defrost, mirrors), Air bags. Summary to be provided on a future date.
• 10133901Jan 29, 2013Equipment. This bulletin is now obsolete. Please see T-SB-0012-13.
• 10133897Jan 29, 2013Electrical system. 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 TIS and the CUW.
• 10133915Jan 3, 2013Air bags. Toyota vehicles are equipped with SRS, including various airbags and in some models, seat belt pre-tensioners, to help reduce the risk of injury in a collision. If a customer expresses any concerns that the SRS airbags or pretensioner devices did not perform as expected, please follow the steps in the recommendations section below.
• 10133878Jan 2, 2013Electrical system. 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…
• 10045140Jun 13, 2012Vehicle speed control. Toyota: accelerator pedal sensor assembly information regarding the inspection, removal, and installation, if lubrication or oil, is applied.
• 10042555Sep 6, 2011Air bags, Seats. Toyota: information provided for replacing the seat covers for vehicles equipped with side airbags.
• 10061578Jun 13, 2011Transmission and drivetrain. Summary to be provided on a future date.
• 10034284Feb 4, 2010Engine cooling. Toyota: 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. Model years from 2001-2011.
• 10023619Oct 27, 2007Engine cooling. M.I.l. (on) dtc p0171, p030# and/or p0133 engine running lean in subfreezing ambient temperatures.
• 10022143Apr 26, 2007Other or unknown. Techstream ecu flash reprogramming procedure.
• 10021536Apr 17, 2007Engine cooling. Accessory drive belt/ belt tensioner assembly noise.
• 10017613Sep 1, 2005Transmission and drivetrain. Whistle/hoot noise from automatic transaxle.
• 10015496Jun 23, 2005Brakes. Brake squeaking noise when backing up and applying the brakes.
• 10015482Jun 3, 2005Equipment. Countermeasures to the air conditioner (a/c) magnetic clutch relay for a/c light flashing (inoperative a/c) issues on some vehicles equipped with a magnetic clutch compressor.
• 10015811Apr 19, 2005Body and structure. Wind noise from the front or rear door glass area.
• 10015666Apr 12, 2005Engine cooling. Engine mechanical - partial engine assy (april, 2003) repair manual correction. 00400-rm103-7u2. *tt 00400-rm938-u2.
• 10015669Apr 4, 2005Vehicle speed control. Diagnostics - cruise control system repair manual correction. 00400-rm938-u1.
• 10015608Feb 14, 2005Transmission and drivetrain. Humming noise from rear hub axle bearing. *tt update
• 10015536Feb 14, 2005Equipment. Poor heater performance during city driving conditions. The air conditioner unit assembly has been modified to improve this condition.
• 10197476May 4, 2001Equipment. Replacement vin plates.
• 10197473Jan 18, 1991Equipment. Product general information.

← All problems reported for the 2003 Toyota Corolla