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Service bulletins for the 1998 Cadillac Seville

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.

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

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By component

By trouble code

Bulletins, newest first
9908440041999-08-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SOME CUSTOMERS MAY COMMENT THAT THE RECEPTION IS POOR ON THE AM RADIO BAND. *TT
9906010101999-08-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMPLAIN ABOUT A ENGINE COLD / KNOCK / TICK NOISE. *TT
9908500091999-08-05. Service bulletin. SEATS. EXPERIENCING EXCESSIVE NOISE COMING FROM THE DRIVER AND / OR PASSENGER SEAT ADJUSTER RAIL / TRACK WHEN MOVING THE SEAT ASSEMBLY FORWARD OR REARWARD. *TT
9908640081999-08-05. Service bulletin. STRUCTURE:BODY. CONDITIONS WITH SPOTTING ON RUBBER PORTION OF SIDE DOOR EXTERIOR MOLDINGS AND WEATHERSTRIPS AT BELTLINE (EXTERIOR FINISH REPAIR PROCEDURE). *TT
9908670011999-08-05. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. EXPERIENCING SUN ROOF WIND NOISE / BUFFETING. *TT
838126A1999-03-08. Service bulletin. STRUCTURE:BODY:DOOR. VARIOUS DOOR FUNCTIONS DO NOT OPERATE PROPERLY. *YC
8330041999-03-08. Service bulletin. SUSPENSION. EXPERIENCING SHAKE / VIBRATION IN STEERING WHEEL, FLOOR, SEAT AT HIGHWAY SPEEDS ON SMOOTH ROADS. *YC
8317041999-01-25. Service bulletin. STRUCTURE:BODY. CONCERNS OF DOOR HANDLES ON WHITE PAINTED VEHICLES TRUNING YELLOW. *YC
838310A1999-01-13. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. CONCERNS OF FUEL GAUGE FLUCTUATES BETWEEN FULL AND EMPTY WHEN TANK IS FULL. *YC
988765241999-01-11. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE. SUBJECT REGARDING ON- BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *YC
988311141998-08-28. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. EXCESSIVE AIR FLOW COMING FROM VENTS AND/OR TOO COLD WHEN SWITCHING FORM HEATER TO BI-LEVEL ON AUTO. *YC
988771651998-08-28. Service bulletin. POWER TRAIN:DRIVELINE. EXPERIENCING HARSH GARAGE SHIFT, HARSH OR DELAYED ENGAGEMENT OF PARK TO REVERSE OR DRIVE TO REVERSE. *YC
988771641998-08-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. SOME COMMENTS ABOUT A NO ENGINE BRAKING CONDITION OR A SEVERL SECOND DELAY WHEN THE SHIFT LEVER IS PLACED IN THE D3 POSITION. *YC
988771651998-08-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. CONCERNS WITH A DELAYED OR HARSH ENGAGEMENT FROM PARK TO REVERSE OR DRIVE TO REVERSE. *YC
988771641998-08-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING NO OR DELAYED ENGINE BRAKING. *YC
988381261998-08-04. Service bulletin. STRUCTURE:BODY:DOOR. CONCERNS WITH VARIOUS DOOR FUNCTIONS NOT OPERATING PROPERLY. *YC
988333031998-07-01. Service bulletin. SUSPENSION:FRONT. SOME CUSTOMERS MAY COMMENT ON A SQUAWK-TYPE NOISE COMING FROM THE FRONT SUSPENSION WHEN DRIVING ON ROUGH OR BUMPY ROADS. *YC
735023A1998-04-29. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. EXPERIENCING NOISE COMING FROM FRONT BRAKES. *YC
7350231997-08-21. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC. BRAKE NOISE (GRUNT/GROAN/GRIND/CRUNCH) COMING FROM FRONT BRAKES (REPLACE FRONT BRAKE PADS). *TW

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