P0011 on Buick vehicles Camshaft timing on bank 1 is more advanced than commanded

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Bulletins and campaigns Buick filed with NHTSA whose summary names P0011. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• PIP5568 Service bulletin
  2018-05-08 · Equipment
• This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024).
• PIP5568A Service bulletin
  2018-06-26 · Engine
• This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024).
• PIP5568B Service bulletin
  2018-07-26 · Equipment
• This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024).
• A202304840 Service bulletin
  2020-06-12 · Engine
• SUB - Certain 2020-2021 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Deal
• 20NA151 Service bulletin
  2020-07-28 · Electrical System
• This technical bulletin provides a procedure to correct conditions of Engine Idle Unstable, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0011, P0014, P0016, P0017, P05CC and/or P05CE Set.
• A202304840 01 Service bulletin
  2020-07-24 · Engine And Engine Cooling
• Service Update. Certain vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Dealers will inspect for these DTC?s that could ha
• A202304840 02 Service bulletin
  2020-08-19 · Engine And Engine Cooling
• Service Update Bulletin. Certain vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Dealers will inspect for these DTC?s that
• PIP5568C Service bulletin
  2018-11-13 · Engine
• This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024). Revised to include the possibility of setting in pairs and some drivability concerns.
• PIP6082 Service bulletin
  2025-08-22 · Unknown Or Other
• This Preliminary information communicates the possibility of an engine surge or misfire with one or more of the following dtc's P0300/P0011/P0014/P0016/P0017 due to potential debris in the cam actuators

A stored code names the test that failed, never the part that caused it. The record above is what Buick and its owners have filed about it; the code’s page across every make has the whole file.