Service bulletins for the 1998 Chevrolet T-Series
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.
69 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| 010604039 | 2001-11-01. Service bulletin. ELECTRICAL SYSTEM. SOME VEHICLES MAY EXHIBIT A SERVICE ENGINE SOON LAMP ON, MALFUNCTION INDICATOR LAMP ILLUMINATES INTERMITTENTLY, ANTI-LOCK BRAKE SYSTEM WARNING LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES SET, AND / OR BLOWN FUSES. *TT |
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| 111000 | 2001-03-22. Service bulletin. ELECTRICAL SYSTEM. INFORMATION ON THE PULLING THE NEGATIVE BATTERY CABLE BEFORE PULLING THE DRL RELAY WHEN PERFORMING CAMPAIGN 00043 DRL NONCOMPLIANCE ON 1998 GM AND CHEVROLET T-PICKUP AND UTILITIES WITH THE ZR2 HIGH RIDER PERFORMANCE PACKAGE. *TT |
| 990604037 | 1999-11-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE. SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *MJS |
| 990603004A | 1999-11-02. Service bulletin. ELECTRICAL SYSTEM. SOME CUSTOMERS MAY COMMENT ABOUT THE HORN SOUNDING AND A NO START CONDITION DUE TO WATER INTRUSION INTO THE ACCESSORY WIRING JUNCTION BLOCK. *TT |
| 990603004 | 1999-09-01. Service bulletin. ELECTRICAL SYSTEM. CUSTOMER MAY COMPLAIN ABOUT HORN SOUNDING, NO START DUE TO WATER INTRUSION INTO ACCESSORY WIRING JUNCTION BLOCK. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.