| Subject: | Battery Goes Dead After Vehicle Has Been Parked For More Than Eight Hours (Replace TV Antenna Module) | 
| Models: | 2005-2006 Cadillac CTS (Export Vehicles Only) | 
| with Navigation System (RPO U2X/U2Y) | 
| Built between VIN Breakpoints 50159078 and 60108796 | 
Some customers may comment on a dead battery after the vehicle has been parked for more than eight hours.
This condition may be caused by the TV antenna module (TV tuner module).
Important: This condition is found only on vehicles that currently have TV antenna module, P/N 15218693, in the vehicle. Use the Tech 2® to verify the part number of the TV antenna module.
Follow normal diagnostic procedures for a dead battery concern. Refer to the Diagnostic System Check -- Vehicle in SI (Document ID 1429010) to begin your diagnostic procedure. If the SI diagnostic procedures do not lead to a definite cause of the dead battery, replace the TV antenna module with P/N 15840015. Refer to the TV Antenna Module Replacement procedure in the Entertainment sub-section of SI (Document ID 815142) for more information.
Part Number  | Description  | Qty  | 
|---|---|---|
15840015  | Tuner Assembly-Video  | 1  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
R9713*  | Module-TV Antenna - Replace  | 0.7 hr  | 
Add  | Diagnostic Time  | 0.0-0.3 hr  | 
* This is a unique labor operation number for bulletin use only. This number will not be published in the Labor Time Guide.  | ||