Whistle or Hoot/Woot Noise Heard from Under Vehicle in Cold Ambient Temperatures – 2019-2021 Cadillac XT4

2021 Cadillac XT4

NHTSA ID Number: 10199264 Manufacturer Communication Number: 21NA090 Summary This service bulletin provides a repair procedure to correct a customer concern of Whistle or Hoot/Woot Noise Heard from Under Vehicle in Cold Ambient Temperatures.     3 Affected Products Vehicle MAKE MODEL YEAR CADILLAC XT4 2019-2021   Condition Some customers may comment on a “whistle” or “hoot/woot” …

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