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Service bulletin 00015

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id613606
Published by NHTSA2000-07-25
Manufacturer's number00015
Manufacturer's date2000-05-01
NHTSA componentEXTERIOR LIGHTING

NHTSA's summary

ON SOME MEDIUM DUTY TRUCKS EQUIPPED WITH A DIESEL ENGINE, AIR BRAKES, AND THE ENGINE SHUTDOWN FEATURE, THE MULTI-FUNCTION ALARM MODULE MAY NOT PERFORM CERTAIN FEATURES SUCH AS: NO WARNING TONE FOR AIR BRAKE LOW PRESSURE; NO WARNING TONE FOR CHECK GAGES; NO LOW COOLANT TELLTALE LAMP OR WARNING TONE; AND NO ENGINE SHUTDOWN FUNCTION FOR LOW COOLANT OR LOW OIL PRESSURE OR HIGH COOLANT TEMPERATURE. **MR

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Lighting

Vehicles listed
CHEVROLET C65001998
CHEVROLET C75001998
CHEVROLET T65001998
CHEVROLET T75001998
GMC C65001998
GMC C75001998
GMC T65001998
GMC T75001998

Listing a model year does not mean every vehicle of it is concerned: the document says which.