When servicing a 2008-2009 GMC Yukon Hybrid, you may experience a history DTC P1A88 set in the hybrid powertrain control module (HPCM) when inspecting.
The code will be in history on all hybrids due to the way the factory dynamic vehicle test is performed.
This test does not cause any drivability or diagnostic concerns and does not turn on the check engine light. Follow normal diagnostics and clear this DTC.
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