Buick Enclave 2009–2010 — technical service bulletin
Bulletin 25630 · NHTSA communication 10137761 · issued Apr 15, 2016
Technical service bulletin
communication type
Engine
component
2009–2010
model years
9
vehicle entries
Official summary
25630 ? Customer Satisfaction Program. These vehicles may have had remanufactured engines installed during a service repair that were built with incorrect piston rings. This may result in engine misfires, lack of power, rough running, oil consumption and eventually engine failure due to oil consumption. Dealers are to inspect engine serial numbers. If the serial number matches a list of suspect engines, the engine will be replaced.
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.