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Service bulletins for the 2003 Buick Regal

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.

426 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
00372D2004-06-09. Service bulletin. EQUIPMENT:ELECTRICAL. ONSTAR SYSTEM IS ATTEMPTING AND/OR COMPLETING PHONE CALLS WHICH THE OPERATOR OF THE VEHICLE DID NOT INITIATE. *TT
016502004-06-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT. MANUAL DUAL ZONE FAN AND MODE KNOB REPLACEMENT. SERVICE VME. *TT
016142004-06-04. Service bulletin. STRUCTURE. RUSTY OR CORRODED APPEARANCE ON UNDERCARRIAGE COMPONENTS.*MR
020272004-05-20. Service bulletin. ELECTRICAL SYSTEM. A/C ON LED INOPERATIVE OR APPEARS TO TOGGLE ON AND OFF. ALSO INCLUDING 2005 BUICK CENTURY AND 2005 BUICK REGAL. *MR
020382004-05-20. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE B1000. *MR
017152004-04-27. Service bulletin. POWER TRAIN. 4T65E TRANSMISSION FLUID LEAK FROM THE REVERSE SERVO COVER IN COLD WEATHER. *TT
030192004-04-22. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. ENGINE COOLANT MAY LEAK AT THE UPPER INTAKE MANIFOLD THROTTLE BODY GASKET, OR AT THE UPPER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD GASKET. THIS CONDITION MAY RESULT IN A LOW ENGINE COOLANT LEVEL AND HIGHER ENGINE OPERATING TEMPERATURES. *TT THIS IS A PARTS BULLETIN AND REFERS TO CUSTOMER SATISFACTION PROGRAM BULLETIN #03034. *TT
030844005B2004-03-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. POOR RADIO RECEPTION OR RADIO STATIC/ INCREASED INTERFERENCE WITH REAR WINDOW DEFOGGER ON OR SOME REAR WINDOW DEFOGGER GRIDS MAY BE INOPERATIVE. *TT
0308490212004-02-10. Service bulletin. STRUCTURE:BODY. CUP HOLDER MAY NOT RETAIN CUPS. *TT
000604049B2004-02-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES BUILT PRIOR TO VIN BREAKPOINT 1F136536 MAY EXHIBIT INTERMITTENT MALFUNCTION INDICATOR LAMP / SERVICE ENGINE SOON INDICATOR ILLUMINATION; ANTI-LOCK BRAKE SYSTEM WARNING LIGHT ILLUMINATION; STALL / NO START CONDITION; VARIOUS ELECTRICAL SYSTEM FAILURES; AND / OR VARIOUS DRIVEABILITY CONCERNS. *TT
0114032004-01-30. Service bulletin. STEERING. INCREASED STEERING EFFORT WHEN TURNING RIGHT OR LEFT. GM VOICEMAIL EXPRESS. *TT
0917032004-01-27. Service bulletin. ELECTRICAL SYSTEM. ANTI-LOCK BRAKE SYSTEM (ABS) OR TRACTION CONTROL SYSTEM (TCS) LIGHT OR LIGHTS ON WITH ONE OR MORE DIAGNOSTIC TROUBLE CODES (DTCS). GM VOICEMAIL LOG. *TT
0917032004-01-27. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT PANEL CLUSTER FUNCTION INTERMITTENTLY INOPERATIVE, ESPECIALLY FUEL GAUGE OR PRINDEL, INTERMITTENT ENGINE NO CRANK OR NO START WITH A SECURITY LIGHT ON, CANNOT REMOVE THE TRANSAXLE SELECTOR LEVER FROM THE PARK POSITION, AND SCS, ANTI-LOCK BRAKE SYSTEM (ABS) OR TRACTION CONTROL SYSTEM (TCS) LIGHTS ON WITH DIAGNOSTIC TROUBLE CODES (DTCS) B1422, B2957 OR B2958. GM VOICEMAIL LOG. *TT
1009032004-01-22. Service bulletin. ELECTRICAL SYSTEM. REPLACEMENT OF A BODY CONTROL MODULE (BCM) OR IGNITION SWITCH DUE TO LACK OF IGNITION ONE OR IGNITION ZERO VOLTAGE. GM VOICEMAIL LOG. *TT
03081100072004-01-07. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. INFORMATION ON HEADLINER SAGGING BEHIND POWER SLIDING SUNROOF NEAR REAR WINDOW (NORMAL CONDITION). *TT
030849018B2004-01-07. Service bulletin. STRUCTURE:BODY. BROKEN CONSOLE OR STORAGE COMPARTMENT LID LATCH. *TT UPDATED *EH
0308450042004-01-07. Service bulletin. ELECTRICAL SYSTEM. INTERMITTENT SERVICE ENGINE SOON (SES), ANTI-LOCK BRAKE (ABS) OR TRACTION CONTROL SYSTEM (TCS) LAMP ILLUMINATED, ENGINE NO CRANK/NO START, VARIOUS INSTRUMENT PANEL (I/P) CLUSTER INTERMITTENTS, DIAGNOSTIC TROUBLE CODES (DTCS) U1000, U1016, B1422, B2957, B2958 SET, SHIFTER LOCKED IN PARK. *TT
020730039E2004-01-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. FIRM TRANSMISSION SHIFTS, SHUDDER/CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0742 SET. *TT UPDATE. *TT
020730022B2004-01-07. Service bulletin. UNKNOWN OR OTHER. SERVICE ENGINE SOON LIGHT ON WITH DIAGNOSTIC TROUBLE CODES P0716 AND / OR P0717, P0730, P0753, P0758, P1860, P1887 OR OTHER MISCELLANEOUS TRANSMISSION TROUBLE CODES SET. *TT
0305250082004-01-02. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. INTERMITTENT/CONSTANT ANTI-LOCK BRAKING SYSTEM (ABS) MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED. *TT
014322003-12-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION POOR ACCELERATION, PERFORMANCE. *TT
0302350042003-12-04. Service bulletin. SERVICE BRAKES, HYDRAULIC:POWER ASSIST. REDUCED POWER STEERING ASSIST, EXCESSIVE STEERING EFFORT, RUBBING, EXCESSIVE NOISE IN PASSENGER COMPARTMENT. *TT
03081100062003-12-03. Service bulletin. STRUCTURE:BODY. HEADLINER SAGGING BEHIND POWER SLIDING SUNROOF. *TT
0306040562003-12-02. Service bulletin. VEHICLE SPEED CONTROL. INFORMATION ON NEW THROTTLE BODY GASKET. *TT
010232001C2003-12-01. Service bulletin. STEERING. SOME CUSTOMERS MAY COMMENT ON A CLUNK TYPE NOISE COMING FROM THE FRONT OF THE VEHICLE DURING A TURNING MANEUVER. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.