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Service bulletin 33

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 id619225
Published by NHTSA2001-05-19
Manufacturer's number33
Manufacturer's date2001-03-01
NHTSA componentPOWER TRAIN:AXLE ASSEMBLY

NHTSA's summary

INFORMATION ON REAR AXLE LUBRICANT AND BULLETIN 01-00-90-001A WHICH COVERS RECOMMENDED LUBRICANT FOR REAR DRIVE AXLES FOR BOTH CARS AND TRUCKS. *TT

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

Transmission and driveline, Axle

Vehicles listed
GMC GMC2000 to 2001

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