Fastener Tightening Specifications
| Application | Specification |
| Metric | English |
| Antenna Bracket to Roof Panel Screw | 2.5 N.m | 22 lb in |
| Navigation Control Processor Bracket to Rear Seat Stud nut | 45 N.m | 33 lb ft |
| OnStar® Microphone to Overhead Console screws | 0.8 N.m | 7 lb in |
Fastener Tightening Specifications
Scheme 58
Scheme 58: OnStar Schematics
Scheme 59
Scheme 59: Cellular Communication Component Views
| Callout | Component Name |
| 1 | OnStar Keypad |
| 2 | Rearview Mirror |
Scheme 60
| Callout | Component Name |
| 1 | Vehicle Communication Interface Module (VCIM) |
| 2 | Headliner Harness |
Scheme 61
| Callout | Component Name |
| 1 | Headliner Harness to GPS Antenna |
| 2 | Rear Floor |
| 3 | Body Harness Channel |
Scheme 62
| Callout | Component Name |
| 1 | Headliner Harness to GPS Antenna |
| 2 | Headliner Harness, to Vehicle Communication Interface Module (VCIM) |
| 3 | Door Frame |
Scheme 63
| Callout | Component Name |
| 1 | Headliner |
| 2 | Antenna Harness, partial, to GPS Antenna |
| 3 | Roof Panel |
Scheme 64
Scheme 65
| Callout | Component Name |
| 1 | Vehicle Communication Interface Module |
Scheme 66
| Callout | Component Name |
| 1 | Coaxial Cable |
| 2 | C Pillar |
| 3 | Coaxial Cable |
Scheme 67
| Callout | Component Name |
| 1 | Coaxial Cable |
| 2 | Cellular Antenna |
Scheme 68
| Callout | Component Name |
| 1 | Connectors |
| 2 | Body Harness |
| 3 | Rear Floor Panel |
| 4 | Vehicle Communication Interface Module (VCIM) |
Scheme 69
| Callout | Component Name |
| 1 | Vehicle Communication Interface Module (VCIM) |
| 2 | Rear Floor |
| 3 | Connectors |