OnStar Module Replacement: Fixes, Costs, and When It?s Worth It
...When you press the Blue Button on your rearview mirror or infotainment system, the module initiates a secure connection with OnStar?s network. Beyond just enabling calls, the module handles critical features like automatic crash response, remote door unlock, stolen vehicle assistance, and hands-free calling in certain models....
https://www.cherishyourcar.com/onstar-module-replacement/
GM Telematics Module Failures (2021-2025): OnStar, GPS & Battery Drain ...
...The Telematics Communication Interface Module (TCIM), often called the OnStar module, is the central communication hub for your vehicle. It contains a GPS receiver for location tracking, a cellular modem for connecting to the internet, and interfaces for the vehicle's internal computer network....
https://www.go-parts.com/garage/engine-air-intake-resonator-gmc-sierra-1500-gmc-yukon-chevrolet-silverado-1500-2021-2025
2016-2024 GM OnStar Module Failure: Battery Drain, TSBs, and ...
...It addresses a condition where the OnStar module stays awake if the driver exits the vehicle while on a Bluetooth call, leading to a dead battery. The fix is not a part replacement, but a software update for the Telematics Communication Interface Control Module (K73)....
https://www.go-parts.com/garage/body-control-module-gmc-acadia-buick-enclave-chevrolet-traverse-2016-2024
How OnStar Works | HowStuffWorks
...At its most basic, OnStar consists of four different types of technology: cellular, voice recognition, GPS and vehicle telemetry. All of the services that OnStar provides are a result of one or more of these technologies working together. OnStar's cellular service is voice-activated and hands-free....
https://auto.howstuffworks.com/onstar.htm
Chevrolet Sonic Repair Manual: OnStar Description and Operation
...The telematics communication interface control module communicates with the rest of the vehicle over the serial data bus. The module houses 2 technology systems, one to process GPS data, and another for cellular information....
https://www.csmans.com/onstar_description_and_operation-647.html
GM Working Hard To Resolve Telematics Module Issues
...GM is addressing widespread telematics module failures affecting infotainment, OnStar, and Super Cruise, as owners report long waits for repairs....
https://gmauthority.com/blog/2026/01/gm-working-hard-to-resolve-telematics-module-issues/
Where is The Onstar Module Located? - carcarehacks.com
...The heart of this system is the OnStar module, which houses the technology needed to connect the vehicle with OnStar?s network, enabling communication and data exchange....
https://www.carcarehacks.com/where-is-the-onstar-module-located/
Onstar Module Replacement: Quick, Reliable, and Cost-Effective Guide
...Replacing the OnStar module is essential when the system fails or stops working properly. The module controls communication between your vehicle and OnStar services....
https://papasroadtrip.com/onstar-module-replacement/
Onstar Module Problems: Top Fixes to Restore Your Vehicle?s Safety
...You?ll discover the common OnStar module problems, where the module is located in your vehicle, and step-by-step solutions to get your system back in shape. Keep reading to take control of your car?s safety and connectivity right now....
https://papasroadtrip.com/onstar-module-problems/
PIC5588D Programming And Activation Of Replacement OnStar Modules (VCIM)
...The Vehicle Communication Interface Module (VCIM) is part of the OnStar system and interacts with several other electronic control devices in the vehicle. In order for OnStar to operate properly, it must be programmed (set-up) specifically for the vehicle application to which it?s been installed....
https://static.nhtsa.gov/odi/tsbs/2017/MC-10118256-9999.pdf