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Service bulletins for the 1997 GMC 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.

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

By type

By component

By trouble code

Bulletins, newest first
988371101998-08-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. TECHNICIANS MAY EXPERIENCE DIFFICULTY IN REMOVING THE CONNECTORS FROM THE PARK/NEUTRAL POSITION SWITCH, USUALLY WHEN TRYING TO REMOVE THE SWITCH DURING TRANSMISSION SERVICE. *YC
988643061998-08-03. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. COMMENTS ABOUT FLUID LEAKING ONTO THE GROUND NEAR THE FRONT WHEELS OR FRONT ENGINE AREA OR LEAKING ONTO THE SURROUNDING COMPONENTS. *YC
988662081998-07-01. Service bulletin. UNKNOWN OR OTHER. COMMENTS THAT THE ENGINE OVERHEAT LAMP COMES ON, AND THAT THE TEMPERATURE GAUGE IS IN THE RED ZONE. *YC

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