Hummer H3 side airbags deployed unexpectedly while driving, suspected rollover sensor malfunction on Hummer H3

Submitted by garyj0nes · Jun 23, 2025
Published by RepairPal

Problem overview

Some Hummer H3 owners report experiencing unexpected side airbag deployments while driving, which can pose serious safety risks. These deployments are typically triggered by specific sensors detecting a rollover scenario or impact to the B pillar area. However, some owners have reported that malfunctioning rollover sensors or other components of the airbag system can also cause unintended deployments. It is vital for owners to have their vehicle inspected by a qualified technician if they experience this issue, as a failing airbag system control unit may need replacement to prevent further malfunctions. Addressing these concerns promptly is essential for the safety of both the driver and passengers.

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Hummer H3 vehicles with this problem

Average mileage: 49,666 miles
(40,000 - 55,000)

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