Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2013 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Communication Interface Module Replacement

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Communication Interface Module & Mounting Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Remove the instrument panel wiring harness fuse block bracket. Refer to Instrument Panel Wiring Harness Fuse Block Bracket Replacement .
1	Communication Interface Module Nut CAUTION: Refer to Fastener Caution . Tighten 9 N.m (80 lb in)
2	Communication Interface Module Bolts (Qty: 2) Tighten 9 N.m (80 lb in)
3	Communication Interface Module Procedure Disconnect the electrical connectors. Transfer wireless communication interface antenna, if equipped. For programming and set up, refer to Control Module References .

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.