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Service bulletin 4486

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 id10022914
Published by NHTSA2007-10-04
Manufacturer's number4486
NHTSA componentELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NHTSA's summary

ONE OF THE FOLLOWING CONCERNS WHEN PROGRAMMING THE MILEAGE OR THE HOURS INTO AN EXCHANGE INSTRUMENT PANEL CLUSTER THAT IS RECEIVED FROM AN ELECTRONIC SERVICE CENTER (ESC). *NJ

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

Electrical system, Instrument cluster

Vehicles listed
BUICK RAINIER2004, 2005, 2006, 2007
CADILLAC ESCALADE2003, 2004, 2005, 2006
CHEVROLET AVALANCHE2003, 2004
CHEVROLET AVALANCHE 25002005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO2003, 2004, 2005, 2006, 2007
CHEVROLET SUBURBAN2003, 2004, 2005
CHEVROLET SUBURBAN 15002006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 25002006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2003, 2004, 2005, 2006
CHEVROLET TRAILBLAZER2003, 2004, 2005, 2006
CHEVROLET TRAILBLAZER2008
CHEVROLET TRAILBLAZER 3602007 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY2003, 2004, 2005, 2006
GMC ENVOY2008
GMC ENVOY 3602007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA2003, 2004, 2005, 2006
GMC SIERRA 15002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002007 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2003, 2004, 2005, 2006
HUMMER H22003, 2004, 2005, 2006, 2007
OLDSMOBILE BRAVADA2003, 2004
SAAB 9-7X2005, 2006, 2007, 2008

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
10054E2024-02-12. Service bulletin. Special Coverage Adjustment - Fuel Level Sensor Contact Wear
PIT52082023-12-26. Service bulletin. Fuel Gauge Shows Empty After Refueling And DTC P2636.
PIT5195B2023-12-26. Service bulletin. Speedometer Needle Accuracy Information.
PIT51952023-12-26. Service bulletin. Speedometer Needle Accuracy Information
PIT52082023-12-11. Service bulletin. Fuel Gauge Shows Empty After Refueling And DTC P2636.
PIT5195B2023-12-11. Service bulletin. Speedometer Needle Accuracy Information.
PIT51952023-12-11. Service bulletin. Speedometer Needle Accuracy Information
07-08-49-020R2023-10-18. Service bulletin. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
PIT5195G2022-06-13. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
07-08-49-020J2021-04-20. Service bulletin. IPC Odometer Programming Method Quick Reference Guide Season Odometer Programming Methods in Use Today 1. IPC reprogramming and setup using the service programming system (SPS). 2. Odometer setup at the electronic service center (ESC) when using an exchange IPC/DIC. 3. Tech 2® – The Tech 2 is used to set up a replacement BCM, which includes loading the odometer value that is displayed and stored in the IPC. A replacement IPC will display the previously stored vehicle odometer value, communicated from the BCM, after cycling the ignition or driving the vehicle. *The odometer programming is integrated as part of the BCM programming procedure. It is not a stand-alone event.