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GMC TSB #17-NA-265
2018 GMC Terrain
TSB Document: - Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 17-NA-265.
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- Flutter or Thump Noise from Rear of Vehicle Condition Some customers may comment on hearing a flutter or thump noise from the rear of the vehicle. The noise is most noticeable while driving above 40 km/h (25 mph), with the HVAC off, or in recirculation mode Cause The cause of the condition may be the rear pressure relief valves (PRVs) opening and closing.
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