The 2008 GMC Sierra 3500 has 3 recalls, the most serious being a passenger-side airbag inflator that can rupture and send metal fragments into the cabin, posing a risk of serious injury or death to front passengers.
Two of the three recalls involve the passenger frontal airbag. The first covers inflators installed as original equipment, which can rupture during deployment. The second covers vehicles where a replacement inflator was installed as part of an earlier recall repair: those interim parts also carry the same rupture risk, meaning prior repair attempts did not fully resolve the issue for all affected trucks. The third recall applies only to trucks equipped with an auxiliary battery, where an overloaded fusible link can melt and contact nearby components, damaging the electrical center cover, wiring harness conduit, and surrounding parts in a way that raises the risk of fire.
At a glance
What can fail
The passenger front air bag inflators may explode because the propellant inside degrades when exposed to humidity, heat, and temperature changes over time.
What the fix does
Dealers will replace the front passenger air bag inflators at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The passenger side front air bag inflator may allow moisture inside over time, which could cause it to rupture when the air bag deploys.
What the fix does
Dealers will replace the front passenger air bag inflator at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The trailer harness can allow too much electrical current to flow through the auxiliary battery circuit, causing the fusible link to melt.
What the fix does
Dealers will replace the jumper harness with one that includes a 40 amp inline fuse and provide updated Owner Manual information.
Summarized — see the official notice for exact wording, dates, and contacts.
