The upper dash may crack, most commonly on vehicles in warm climates and exposed to a lot of sunlight. The common repair is to replace the upper instrument trim panel. Information on a technical service bulletin or extended warranty is not available at this time.
Problems for specific GMC Yukon Denali years:
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Newest reported 2011 GMC Yukon Denali problems
The quick-connect fittings for the heater hoses tend to leak engine coolant. This problem commonly occurs because the metal housing has become brittle, which can break and cause leaks.
The inside and outside door handles are prone to breaking.
The steering wheel position sensor may fail, resulting in the service stability message being displayed.