WenmarOpen by Wenmar Pro

Service bulletins for the 2004 Cadillac XLR

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.

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

By type

By component

By trouble code

Bulletins, newest first
30482004-09-27. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. INSTALLATION OF XM RADIO ON VEHICLES WITHOUT RPO U2K. *TT
012320042004-09-10. Service bulletin. EXTERIOR LIGHTING. DIFFICULTY IDENTIFYING THE CORRECT PART NUMBER FOR THE FRONT TURN SIGNAL AND PARK LAMP BULB. GM VOICEMAIL EXPRESS. *TT
30182004-08-23. Service bulletin. EQUIPMENT:ELECTRICAL. TOP OVERHEAT MESSAGE DISPLAYS ON DIC WITH DIAGNOSTIC TROUBLE CODE (DTC) B3670. *TT
15310452004-08-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). POOR OR NO GPS RECEPTION. *MJ
0409400022004-08-17. Service bulletin. SEAT BELTS. SEAT BELT STOP BUTTON KITS AVAILABLE. *MJ
0407300122004-08-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION FLUID CHECKING PROCEDURE FOR 5L40-E AND 5L50-E AUTOMATIC TRANSMISSIONS. *TT
0406040132004-08-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LACK OF POWER, CHECK ENGINE LIGHT, TRACTION CONTROL LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P2108 SET. *TT
0406040112004-08-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). NEW PROCEDURAL REQUIREMENTS FOR POWERTRAIN CONTROL MODULE (PCM) REPLACEMENT. *TT
0406010072004-08-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. ACCESSORY DRIVE BELT CHIRP OR SQUEAL NOISE. *TT
00246A2004-07-19. Service bulletin. ELECTRICAL SYSTEM. XM DATA READING PATH FOR TECH 2. *TT
016162004-07-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NORTHSTAR ENGINE WITH P0300 MISFIRE CODES. *TT
019162004-07-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL LEAK IN THE BLOCK AT THREADED HOLE BEHIND AIR CONDITIONER (A/C) BRACKET. *TT
020702004-07-10. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. XM VOLUME LOWER THAN OTHER BANDS WHEN SWITCHING BETWEEN AM/FM AND XM. *TT
020632004-07-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CONCERN OF DIAGNOSTIC TROUBLE CODE (DTC) P0171, P0175. *TT
01491B2004-07-07. Service bulletin. ELECTRICAL SYSTEM. TECH 2 WILL NOT COMMUNICATE WITH THE VEHICLE. *MJ
008362004-07-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 5L40E 5L50E TRANSMISSION- HIGH TCC SLIP SPEED AND OR DIAGNOSTIC TROUBLE CODE (DTC) P0741 HIGH TCC SLIP SPEED. *MJ
018672004-06-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHECK OIL LEVEL PROCEDURE. *TT
021022004-06-25. Service bulletin. ELECTRICAL SYSTEM. LOSS OF HVAC TEMPERATURE CONTROL ONLY WITH THE FOLDING TOP IN THE DOWN POSITION. *MJ
021102004-06-23. Service bulletin. ELECTRICAL SYSTEM. INTERMITTENTLY THE SIR LAMP COMES ON SOLID OR FLASHES WHILE DRIVING. A CURRENT OR HISTORY CODE B0066 MAY BE SET IN THE SDM. *MJ
01639A2004-06-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LH2 4.6L ENGINE FRONT AND REAR OIL LEAKS.*MR
016622004-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. XM ERROR ON A RADIO DISPLAY. *TT
016772004-06-03. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. BOOM SOUND FROM SPEAKERS AFTER VEHICLE IS OFF AND LOCKED.*MR
016162004-06-03. Service bulletin. ELECTRICAL SYSTEM. 4.0L (LH2) RWD NORTHSTAR ENGINE WITH P0300 MISFIRE CODES.*MR
016582004-06-03. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. INTERMITTENT OPERATION OF THE WINDSHIELD WIPERS IN ALL MODES EXCEPT HIGH.*MR
016392004-06-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LH2 4.6L ENGINE FRONT AND REAR OIL LEAKS.*MR

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