RepairPal Certified shops can diagnose and repair your 2005 Chevrolet Avalanche 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Spray every moving part you see on the tailgate, latches on each side, release handle etc with WD-40... Spray the hell out of it! .. Then close and open it several times.
I tried that and it is still stuck. But I will do it some more thank you
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