WenmarOpen by Wenmar Pro

Service bulletin 020399001

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 id634879
Published by NHTSA2002-10-10
Manufacturer's number020399001
Manufacturer's date2002-06-01
NHTSA componentSUSPENSION

NHTSA's summary

CONCERNS WITH REAR OF VEHICLE SITTING LOW, ELECTRONIC CONTROLLED AIR SUSPENSION (CEAS) COMPRESSOR RUNS - WILL NOT LIFT REAR TO OPERATING HEIGHT. *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

Suspension

Vehicles listed
GMC ENVOY2002
OLDSMOBILE BRAVADA2002

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

Recalls for the same vehicles and component
20010982001-04-19. Suspension
01V1260002001-04-12. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PIP53382017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
SB-070417001D2009-10-23. Service bulletin. GMC/BUICK/OLDSMOBILE/SAAB: BUMP OR THUMP NOISE IS HEARD COMING FROM THE REAR SUSPENSION OR FELT IN THE FLOOR. THE INFORMATION AFFECT VEHICLES WITH G67 AUTOMATIC LEVEL CONTROL REAR SUSPENSION. *PE UPDATED 3/30/11. *PE
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
19965842007-09-18. Service bulletin. BOOM/RUMBLING NOISE AT HIGHWAY SPEED *NJ
05-03-08-0072005-11-04. Service bulletin. RATTLE, CLUNK, POP, SNAP NOISE FROM FRONT AND/OR REAR SUSPENSION WHILE DRIVING OVER ROUGH, UNEVEN, WASH BOARD ROAD SURFACES. *TT (REPLACE APPROPRIATE STABILIZER LINK(S)). UPDATED 7/11/08. *NJ
33742005-04-21. Service bulletin. UNABLE TO ACHIEVE ALIGNMENT SPECIFICATIONS AFTER CAMPAIGN 01034. *TT
040482005-04-07. Service bulletin. AN ELECTRONICALLY CONTROLLED AIR SUSPENSION MAY PRODUCE A BRIEF ELECTRICAL SPIKE WHILE THE VEHICLE IS OPERATING. *TT
32652005-01-28. Service bulletin. UNEVEN APPEARANCE OR LEAN FROM DRIVERS TO PASSENGER SIDE RPO G67. *EH
32222004-12-03. Service bulletin. INTERMITTENT BOOM, RUMBLING NOISE AT HIGHWAY SPEED. *TT UPDATED 2/27/08. *NJ
31242004-11-05. Service bulletin. UPPER AND LOWER INTERMEDIATE SHAFT PARTS RESTRICTION. *SC