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Service bulletin 211101

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 id628149
Published by NHTSA2002-03-05
Manufacturer's number211101
Manufacturer's date2001-11-21
NHTSA componentPOWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

NHTSA's summary

SOME VEHICLES AS WELL AS GMC SPORT UTILITIES AND PICK UPS AT VERY LOW MILEAGE, FROM AROUND ZERO TO 300 MILES OF FRONT DIFFERENTIAL FLUID LEAKING FROM THE FRONT AXLE VENT TUBE. *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, Differential

Vehicles listed
CADILLAC ESCALADE2002
GMC GMC2002

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

Other bulletins for the same vehicles and component
PIP4054A2008-04-07. Service bulletin. EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80. *NJ UPDATED 7/17/2008. *PE