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Service bulletins for the 1999 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.

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

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By component

By trouble code

Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
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
1172002-06-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). INFORMATION ON EXHAUST GAS RECIRCULATION. *SLC
0910002001-04-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. SUBJECT REGARDING A VOLUNTARY CUSTOMER NOTIFICATION (MASS AIR FLOW SENSOR CONNECTION RECALL CAMPAIGN) ON CERTAIN VEHICLES WITH V-6 ENGINES, MANUFACTURED FROM START OF PRODUCTION THROUGH JULY 4, 2000, INCLUSIVE. *TT
0610002001-04-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. HYUNDAI MOTOR AMERICA IS CONDUCTING A VOLUNTARY CUSTOMER NOTIFICATION (SAFETY RECALL) ON CERTAIN VEHICLES EQUIPPED WITH 2.5L V-6 ENGINES PRODUCED FROM THE START OF PRODUCTION THROUGH JULY 4, 2000 INCLUSIVE, TO MAKE REPAIRS AFFECTING THE MAF SENSOR ELECTRICAL CONNECTION. *TT
00010052001-04-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. SUBJECT REGARDING MASS AIR FLOW SENSOR CONNECTION CAMPAIGN. *TT
99300032000-01-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). PROVIDED INFORMATION REGARDING THE EGR SYSTEM NOT PROVIDED IN THE SHOP MANUAL. *TT
99360031999-04-29. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. SUBJECT REGARDING OXYGEN SENSORS. *TT

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