P0299 on Buick vehicles The turbocharger or supercharger is not making the boost the computer asked for

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.

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

Bulletins and campaigns Buick filed with NHTSA whose summary names P0299. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• PIP5495A Service bulletin
  2017-06-08 · Equipment — Other — Owners/Service/Other Manual
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5495B Service bulletin
  2017-06-14 · Equipment — Other — Owners/Service/Other Manual
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5495C Service bulletin
  2017-10-20 · Equipment — Electrical
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5495G Service bulletin
  2018-10-17 · Engine And Engine Cooling
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5495H Service bulletin
  2018-11-14 · Engine
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIE0503 Service bulletin
  2019-02-04 · Engine And Engine Cooling
• This engineering informational bulletin is requesting information from the field on reduced engine power, DTC P0299 set.
• PIP5495L Service bulletin
  2020-02-07 · Equipment Adaptive/Mobility
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5495M Service bulletin
  2020-06-10 · Engine And Engine Cooling — Engine — Gasoline — Turbo/Supercharger
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5495M Service bulletin
  2021-03-19 · Exterior Lighting
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no tro
• PIP5829 Service bulletin
  2021-11-22 · Engine
• This Preliminary information communicates to the dealers information related to diagnosis of a MIL illuminated with DTC P0299.
• 21NA293 Service bulletin
  2022-01-13 · Engine And Engine Cooling
• This technical bulletin provides repair information to correct a customer concern of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing - Malfunction Indicator Lamp (MIL) Illuminated, DTC P0299, P0234, P0236, P00C7 Set.
• PIP5829A Service bulletin
  2023-01-09 · Engine And Engine Cooling
• This Preliminary information communicates to the dealers information related to diagnosis of a MIL illuminated with DTC P0299 and/or Cold start rattle noise from the engine compartment.

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.