Buick Encore 2013–2020 — technical service bulletin
Bulletin 18-NA-049 · NHTSA communication 10250271 · issued Jan 31, 2024
Technical service bulletin
communication type
Power Train
component
2013–2020
model years
16
vehicle entries
Official summary
This service bulletin advises the technician to replace the rear diff carrier if heavy corrosion caused noise, cracking and/or leaking to correct customer concerns of Clunk or Growl Noise Coming from Rear of Vehicle and/or Rear End Binding When Turning or Backing Up.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.