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Service bulletins for the 2002 Hyundai Sonata

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
26-EM-016H TSB2026-10-14. Service bulletin. ENGINE. Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26-EM-015H, Engine Oil Consumption – Inspection & Repair Guidelines, or the latest revision.
26-EM-015H TSB2026-10-13. Service bulletin. ENGINE. Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level.
23-EM-005H2023-12-15. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
22-EM-010H2022-08-05. Service bulletin. ENGINE AND ENGINE COOLING. Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
21-EM-004H2021-04-07. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps.
21-EM-003H2021-04-06. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
TSB-09-AT-0182010-06-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:ENGINE. HYUNDAI: ATA SOLENOID DIAGNOSTIC TROUBLE CODES P0740, P0741, P0742, P0743, P0746, P0748, P0750, P0755, P0760, P0765, P0770. INCORRECT OPERATION OF THE TRANSAXLE SOLENOIDS MAY RESULT IN THE FOLLOWING SYMPTOMS-CHECK ENGINE LIGHT ILLUMINATED; TRANSAXLE HELD IN 3RD GEAR FAIL SAFE. *PE
TSB-09-AT-0132009-12-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. HYUNDAI: AUTOMATIC TRANSAXLE RANGE SWITCH DIAGNOSTIC TROUBLE CODES P0705 (RANGE SWITCH SIGNAL PROBLEMS), P0707 (RANGE SWITCH OPEN CIRCUIT), AND P0708 (RANGE SWITCH SHORT CIRCUIT OR MULTIPLE INPUTS). AN IMPROPERLY ADJUSTED OR IMPROPERLY OPERATING RANGE SWITCH MAY RESULT IN THE ABOVE MENTIONED CONDITIONS. MALFUNCTION INDICATOR LIGHT (MIL) ILLUMINATED; IMPOSSIBLE ENGINE START IN P OR N. *PE
06360062007-01-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). EXHAUST GAS RECIRCULATION (EGR) SYSTEM DIAGNOSIS. *KB
1352005-09-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 2.7 V6 OXYGEN SENSOR WIRE REROUTING. *SC
080420042005-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DRIVABILITY CONDITIONS. *TT
04360062004-09-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. UNSTABLE IDLE (SIMPLE DIAGNOSIS PROCEDURE FOR INTERMITTENTLY STUCK CLOSED EGR SOLENOID VALVE). *TT
030101212004-03-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE CONTROL MODULE (ECM) REPROGRAMMING RELATED TO 2.7L V6 ENGINE 02 SENSORS (CAMPAIGN V02) - REVISED. MAY EXPERIENCE CHECK ENGINE LIGHT ON OR DIAGNOSTIC TROUBLE CODES P0133, P0134, P1134, P0153, P0154 AND P1154. *TT
033601212003-12-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OXYGEN SENSOR CHANGE FOR THE 2.7L V6 (DELTA) ENGINE. *TT
03360192003-12-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ECM (ENGINE CONTROL MODULE) REPROGRAMMING FOR ENGINE HESITATION IN THE MORNING AND DIAGNOSTIC TROUBLE CODE P0139. *TT
02360372003-08-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ECM (ENGINE CONTROL MODULE) REPROGRAMMING FOR ENGINE HESITATION IN THE MORNING AND DIAGNOSTIC TROUBLE CODE P0139. *TT
023602212003-03-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VEHICLES MAY EXPERIENCE ENGINE RPM FLUCTUATION - CRUISE CONTROL CABLE ADJUSTMENT PROCEDURE. *TT
02360342003-02-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. OXYGEN SENSOR WIRE REROUTING. *TT
02360222002-09-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING ENGINE RPM FLUCTUATION - CRUISE CONTROL CABLE ADJUSTMENT PROCEDURE. *JG
240920012001-10-30. Service bulletin. ENGINE AND ENGINE COOLING. INFORMATION REGARDING TEMPERATURE DISPLAY. *YD

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