Telematic Control Module Failure - No "Get Well Plan" from GM Corp and the CEO of GM, Mary Barra.

To the GM Executive Customer Care and Corporate Leadership and to my fellow GM product owners:

I am formally escalating a serious and unresolved issue regarding a Telematics Control Module (TCM) failure on my 2025 GMC Acadia Elevation, purchased in October 2025.

My authorized GMC dealership has confirmed that the vehicle’s TCM requires replacement. Based on discussions with dealership personnel and extensive owner reports, this failure appears to be systemic across multiple GM platforms and model years, not an isolated incident.

Despite widespread awareness of recurring TCM failures, GM continues to:

• Sell vehicles equipped with these modules
• Market and charge customers for OnStar services that may be partially or fully non‑functional
• Leave dealerships without sufficient replacement modules or clear remediation guidance

This raises serious concerns regarding customer safety, transparency, and corporate accountability.

Key Issues Requiring Executive Review

1. Paid Services & Disclosure
   • Why does GM continue selling OnStar subscriptions on vehicles known to suffer TCM failures that compromise emergency, location, and monitoring services?
   • Why are customers not clearly informed of these known risks at the point of sale?
2. Manufacturing & Parts Strategy
   • Are newly produced GM vehicles equipped with updated or redesigned telematics modules, or are the same failure-prone units still being installed?
   • If improved modules exist, why has GM not prioritized distributing them to dealerships to repair affected customer vehicles?
3. Safety & Liability Exposure
   • What safety systems are impacted when the TCM fails—specifically emergency response, airbag crash detection, vehicle tracking, and occupant monitoring?
   • How does GM mitigate the risk of delayed or failed emergency response in accidents involving vehicles with known TCM failures?
4. Corporate Oversight & Trust
   • Why has GM not issued a formal service campaign, recall, or goodwill repair initiative to address this issue?
   • How does GM intend to preserve brand trust while allowing a known electronic safety-related failure to persist?
5. Broader Risk Implications
   • Given GM Defense’s role as a supplier to the U.S. Department of Defense, unresolved systemic quality issues in consumer vehicles raise legitimate concerns about component reliability, governance, and risk discipline across the enterprise.

Expected Resolution

I am requesting executive-level intervention to provide:

• A clear acknowledgment of the systemic TCM issue
• Confirmation of whether redesigned replacement modules exist
• Immediate corrective action for affected customers
• Reimbursement or suspension of OnStar charges during periods of non-functionality
• A defined remediation or “get‑well” plan communicated to dealerships and customers

This issue is solvable, comparatively low-cost relative to major powertrain or structural problems, and represents an opportunity for GM leadership to demonstrate accountability and customer commitment.

I respectfully request a written response from GM Executive Customer Care or Corporate Leadership outlining next steps within a reasonable timeframe.

Thank you in advance for reading and responding to my posting/message.