Electrical System Failures

Reports indicate potential issues with the electrical system, leading to loss of power or other critical functions. This is the most frequent complaint category. Estimated repair cost: $500 - $3,000+.

Seat Belt Malfunction

A complaint noted a detached seat belt bracket, posing a direct safety risk. While isolated, it highlights potential issues with restraint systems. Estimated repair cost: $200 - $600.

Forward Collision Avoidance System Faults

One complaint involved the forward collision avoidance system, indicating potential electronic or sensor issues affecting safety features. Estimated repair cost: $300 - $1,500.

CARFOCALvehicle research

2025 GMC Hummer EV SUV Maintenance guide

Name: Maintenance dataset for 2025 GMC Hummer EV SUV
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis4 Sources Analyzed

MAINTENANCE SUMMARY

The 2025 GMC Hummer EV SUV, with 7 complaints and 61 TSBs, presents a below-average reliability verdict. Owners should prioritize inspections of the electrical system and powertrain due to early-life failure reports.

Powertrain: Battery Electric (BEV)

View Critical Issue: Powertrain/Propulsion System Issues

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Reliability Score

Est. Annual Maintenance Cost

$150 - $300

TSBs & Recalls

61 TSBs | 0 Recalls

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Key Takeaways

The 2025 GMC Hummer EV SUV has a below-average reliability verdict, despite no recalls.
Electrical system issues are the most common complaint, potentially leading to power loss.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance