| Subject: | Information on Vehicles With a Stored History DTC B1259 Antenna Ground Circuit |
| Models: | 2006 Buick LaCrosse, Rainier, Rendezvous, Terraza |
| 2006 Cadillac CTS, Escalade Models, SRX |
| 2006 Chevrolet Avalanche, Colorado, Equinox, Silverado, Suburban, Tahoe, TrailBlazer Models, Uplander |
| 2006 GMC Canyon, Envoy Models, Sierra, Yukon Models |
| 2006 HUMMER H2, HUMMER H3 |
| 2006 Pontiac Grand Prix, Montana, Torrent, Vibe |
Technicians may find a stored history Diagnostic Trouble Code (DTC) B1259 Antenna Ground Circuit in the radio. If the XM radio is operating properly, the DTC may be stored due to a software anomaly and no repairs are necessary. If there is a customer concern
with the operation of the radio and a current DTC B1259 is set, then follow the normal diagnostic procedures for DTC B1259.
