WenmarOpen by Wenmar Pro

Service bulletin 050844026A

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 id10017831
Published by NHTSA2005-12-02
Manufacturer's number050844026A
Manufacturer's date2005-09-01
Replaces050844026B
NHTSA componentEQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

NHTSA's summary

NAVIGATION RADIO LOSES SOME OPTIONS, DIMS OR GOES BLANK AFTER A FEW HOURS OF USE (BULLETIN CANCELLED-NO ACTION REQUIRED). *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

Equipment and accessories

Vehicles listed
BUICK RAINIER2005
CADILLAC ESCALADE2005
CHEVROLET SUBURBAN2005
CHEVROLET TAHOE2005
CHEVROLET TRAILBLAZER2005
GMC ENVOY2005
GMC YUKON2005
HUMMER H22005

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
PIT53532024-04-01. Service bulletin. XM Audio Traffic And Travel Link Availability And Operation.
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.
PIT5074P2024-01-29. Service bulletin. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.
Recalls2024-01-08. Service bulletin. Vehicle Recalls
PIT5074H2023-12-26. Service bulletin. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
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.