WenmarOpen by Wenmar Pro

Service bulletins for the 1999 Cadillac Deville

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1300890092023-12-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
39512006-11-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. KNOCKIG NOISES OR EXCESSIVE OIL CONSUMPTION. VEHICLES WITH LD8 OR L37 4.6L V8 ENGINES. *KB
30352004-10-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON (SES) LIGHT ON, SES LIGHT ON AND CHUGGLE OR SURGE. DIAGNOSTIC TROUBLE CODE P0741 (TCC STUCK OFF). *TT
021032004-07-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4T80E MH1 SERVICE ENGINE SOON (SES) LIGHT ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P0741 (TCC STUCK OFF). *TT
017922004-04-28. Service bulletin. ENGINE AND ENGINE COOLING. 4.0L L47, 4.6L LD8 L37 ENGINE WATER PUMP COVER P/N 12571913- THERMOSTAT LOOSE. ALSO INCLUDING MODEL 2003 CADILLAC ELDORADO. *MR
017712004-04-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.0L L47, 4.6L LD8, L37, LH2 ENGINE COOLANT OR OIL LEAK.*MR
990601010C2004-03-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE COLD/KNOCK/TICK NOISE. *TT
0306010272004-01-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS OF ENHANCEMENTS TO CRANKCASE, OIL DISTRIBUTION PLATE AND OIL PAN SEALING BY USING RTV SEALANT. *TT
020601009C2004-01-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. HIGHER THAN EXPECTED OIL CONSUMPTION. *TT
990601010B2003-09-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ENGINE COLD/KNOCK/TICK NOISE. *TT
020601009A2003-02-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. HIGHER THAN EXPECTED OIL CONSUMPTION. *TT
0206010092002-05-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON HIGHER THAN EXPECTED OIL CONSUMPTION. *SLC
1502012001-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. THIS PRODUCT TECHNICAL INFORMATION CONCERNS AN INTERMITTENT STUMBLE OR STALL CONDITION. SOME CUSTOMERS MAY COMMENT THAT INTERMITTENTLY THEY EXPERIENCE A STUMBLE OR STALL CONDITION WHEN COMING DOWN TO A STOP. IN MOST INSTANCES THE ENGINE WILL RESTART, SOMETIMES WITH AN EXTENDED CRANK, AND A POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE P1599 MAY OR MAY NOT BE PRESENT. *TT
990862000-07-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CUSTOMER SATISFACTION CAMPAIGN REGARDING VEHICLES EXHIBITING A CONDITION IN WHICH THE CYLINDER HEAD BOLTS MAY BECOME LOOSE. **MR
990862000-02-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EXHIBITING A CONDITION IN WHICH THE CYLINDER HEAD BOLTS MAY BECOME LOOSE AND CAUSE COOLANT LEAKS AND POSSIBLE ENGINE DAMAGE. *TT
990862000-01-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE CYLINDER HEAD BOLTS MAY BECOME LOOSE AND CAUSE COOLANT LEAKS AND POSSIBLE ENGINE DAMAGE. *TT
9906010101999-08-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMPLAIN ABOUT A ENGINE COLD / KNOCK / TICK NOISE. *TT

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