For 1990-2009 cars

# Information on OnStar Analog-Only Systems

Subject: | Information on OnStar® Analog-Only Systems

Models: | 1996-1999 GM Passenger Cars and Trucks

| Plus:

| 2002 Buick Rendezvous

| 2000-2003 Buick Century, Regal

| 2000-2005 Buick Park Avenue

| 2000-2001 Cadillac Catera, DeVille, Seville

| 2000-2002 Cadillac Eldorado, Escalade Models

| 2000 Chevrolet Impala, Lumina, Monte Carlo

| 2000-2001 Chevrolet Blazer, TrailBlazer Models

| 2000-2002 Chevrolet Suburban, Tahoe, Venture

| 2001-2002 Chevrolet Silverado

| 2002 Chevrolet Avalanche

| 2000-2002 GMC Denali, Denali XL, Jimmy, Yukon, Yukon XL

| 2000-2001 GMC Envoy

| 2001-2002 GMC Sierra

| 2000-2001 Oldsmobile Bravada

| 2000-2002 Oldsmobile Intrigue, Silhouette

| 2000-2002 Pontiac Montana

| 2001-2002 Pontiac Aztek

| 2000-2003 Pontiac Grand Prix

| with OnStar® (RPO UE1)

This bulletin is being revised to update the models affected list above. Please discard Corporate Bulletin Number 06-08-46-007 (Section 08 -- Body & Accessories).

All vehicles equipped with OnStar® listed in this bulletin were built with Analog-Only OnStar® Hardware. OnStar® equipped vehicles with analog-only equipment were designed to operate only on the analog wireless network and cannot be upgraded for digital network compatibility.

Vehicles with this equipment will no longer be able to receive OnStar® services beginning January 1, 2008. At that time, service will be available only through Dual-Mode (Analog / Digital) equipment. Analog-Only vehicles cannot be upgraded to digital equipment.