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Home >> Cadillac >> 2009 >> CTS Base, 3.6 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Cellular System, Entertainment System & Navigation System) >> Repair Instructions >> Cellular and Navigation Antenna Assembly Replacement
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Cellular and Navigation Antenna Assembly Replacement

WARNING: This page is about a different car, the 2009 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Cellular & Navigation Antenna Assembly
GM1852949Courtesy of GENERAL MOTORS CORP.
Callout Component Name
CAUTION: Use care when removing or installing the headliner. Excessive bending will damage the headliner.
Preliminary Procedures: Remove the rear of the headliner. Refer to Headlining Trim Panel Replacement .
1 Body Wiring Harness Assembly
2 Digital Radio and Mobile Telephone and Vehicle Location Base Expansion Sleeve
3 Digital Radio and Mobile Telephone and Vehicle Location Base Bolt
CAUTION: Refer to Fastener Caution .

Tighten:  9 N.m (80 lb in)

4 Digital Radio and Mobile Telephone and Vehicle Location Base Assembly
CAUTION: DO NOT apply paint or clear coat to the antenna. This will damage the function of the antenna, causing poor reception or loss of signal reception.

Procedure: 
Disconnect the antenna connectors.
Tip:  The retainer, located on the shaft of the radio antenna, was designed for assembly plant operations to retain the digital antenna to the roof before the bolt is installed. If the retainer on the radio antenna is broken or damaged during service of the antenna, the antenna will still operate as designed and should be reused.