WenmarOpen by Wenmar Pro

Service bulletin 040846004

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 id10013440
Published by NHTSA2005-04-19
Manufacturer's number040846004
Manufacturer's date2005-01-01
Replaces040846004A
NHTSA componentEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

ONSTAR SYSTEM INOPERATIVE ONSTAR SYSTEM STATUS LIGHT IS RED RADIO LOCKED IN PHONE MODE OR DTC B1000. *EH

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

Equipment and accessories

Trouble codes named

B1000

Vehicles listed
BUICK LESABRE2003
BUICK RENDEZVOUS2003
CADILLAC ESCALADE EXT2003 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2003
CHEVROLET CAVALIER2003
CHEVROLET EXPRESS2003
CHEVROLET SILVERADO2003
CHEVROLET TAHOE2003
CHEVROLET TRAILBLAZER2003
CHEVROLET VENTURE2003
GMC DENALI2003
GMC ENVOY2003
GMC SAVANA2003
GMC SIERRA2003
GMC SUBURBAN2003
GMC YUKON2003
HUMMER H22003
OLDSMOBILE AURORA2003
OLDSMOBILE BRAVADA2003
OLDSMOBILE SILHOUETTE2003
PONTIAC AZTEK2003
PONTIAC BONNEVILLE2003
PONTIAC GRAND PRIX2004
PONTIAC MONTANA2003
PONTIAC SUNFIRE2003

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

Recalls for the same vehicles and component
04V5620002004-11-26. EQUIPMENT ADAPTIVE/MOBILITY
03V2500002003-07-15. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

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
PIT53532024-04-01. Service bulletin. XM Audio Traffic And Travel Link Availability And Operation.
1406040052024-02-12. Service bulletin. Duramax® Diesel Glow Plugs Difficult to Install Due to Carbon Buildup - New Glow Plug Bore Reamer Available
PIP5601B2024-02-12. 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.
18-NA-0992024-02-02. Service bulletin. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
Recalls2024-01-08. Service bulletin. Vehicle Recalls
PIT4864F2023-12-26. Service bulletin. Information On Requests To Add OnStar Bluetooth Option.
23-NA-2192023-12-21. Service bulletin. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
PIC5588B2023-12-11. Service bulletin. Programming And Activation Of Replacement OnStar Modules.
PIC5588A2023-12-11. Service bulletin. Programming And Activation Of Replacement OnStar Modules.
130089004I2023-12-11. Service bulletin. Car and Truck Fix it Right the First Time Issues