The 2008 GMC W4500 has 3 recalls, the most serious being a stuck accelerator pedal on gasoline-engine models that can lock at full throttle, making the vehicle difficult to slow or stop and raising the risk of a crash.
The accelerator pedal can shift sideways and catch on a stopper bolt, holding it wide open regardless of driver input. These two filings describe the same underlying pedal defect and should be treated as one issue. There is also a fuel system concern: the fuel tank can corrode and develop a leak, and any fuel escaping near an ignition source raises the risk of fire.
At a glance
What can fail
The accelerator pedal can shift sideways and catch on a stopper bolt, causing it to stay pressed open and increasing crash risk.
What the fix does
Dealers will replace the stopper bolt with a flanged plate bolted to the floor bracket to prevent the pedal from shifting.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The throttle pedal can get stuck under the steel stopper bolt, causing it to remain at full throttle and stay pressed down.
What the fix does
The dealer will remove the stopper bolt and install a flanged plate to prevent the throttle pedal from moving sideways.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel tank may corrode over time and develop leaks, allowing fuel to escape.
What the fix does
Dealers will replace the fuel tank at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
