Front Seat Belt Buckle Bolt Looseness

Front seat belt buckle attachment bolts may not be sufficiently tightened, posing a safety risk in a collision. Estimated repair cost: $100 - $200.

CARFOCALvehicle research

2023 GMC Hummer EV Pickup Maintenance guide

Name: Maintenance dataset for 2023 GMC Hummer EV Pickup
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2023 GMC Hummer EV Pickup, with a 'Below Average' reliability verdict, requires diligent attention to its high-voltage battery system due to a critical safety recall for potential water ingress. While consumer complaints are zero, the 148 TSBs suggest ongoing software and minor component adjustments are necessary.

View Critical Issue: High-Voltage Battery Water Ingress

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Reliability Score

Est. Annual Maintenance Cost

$100 - $250

TSBs & Recalls

148 TSBs | 2 Recalls

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Key Takeaways

The 2023 GMC Hummer EV Pickup has a 'Below Average' reliability verdict.
A critical recall exists for potential water ingress into the high-voltage battery pack.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance