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Power Window System - Old Style: Other GMC Yukon Denali

SYSTEM CHECK

  1. Using master switch assembly, operate each window up and down.
  2. Using individual door switches, operate each window up and down. If all windows operate quietly and smoothly with no sticking, system check is complete. If any window does not function properly, perform «PRELIMINARY INSPECTION»(ref-3327-S19826524752000042500000) .

WINDOW MOTOR & REGULATOR

Note. Power window motor is not serviceable. It is replaced as an assembly with window regulator.