Service bulletins for the 2011 Subaru Impreza
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
252 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 02-172-18R | 2018-06-11. Service bulletin. ENGINE. This bulletin provides details regarding a new oil filler tube o-ring developed to address engine oil seepage concerns. This seepage may accumulate along the bottom sealing surface of the rocker cover. The new o-ring utilizes material which has an increased resistance to engine heat. |
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| 02-164-16 | 2017-08-14. Service bulletin. ENGINE AND ENGINE COOLING. This Service Information bulletin announces a design change to the internal contact portion of the oil pressure switch to increase durability |
| 11-135-13 | 2017-03-03. Service bulletin. ENGINE. THIS BULLETIN ANNOUNCES THE AVAILABILITY OF ECM REPROGRAMMING FILES TO ADDRESS A FALSE CEL/MIL ILLUMINATION AND SETTING OF DTC P050A. THIS DTC CAN RESULT FROM SPECIFIC CLUTCH OPERATION (ON MT MODELS) AND / OR DRIVING PATTERNS OCCURRING IMMEDIATELY AFTER STARTING THE ENGINE. |
| 02-162-15 | 2017-02-27. Service bulletin. ENGINE. "THIS SERVICE INFORMATION BULLETIN ANNOUNCES A DESIGN CHANGE TO THE OIL PRESSURE SWITCH ASSEMBLY. NICKEL PLATING HAS BEEN APPLIED TO THE INTERNAL SWITCH CONTACTS TO ENHANCE THEIR DURABILITY AND REDUCE THE POSSIBILITY OF POOR CONTACT WHICH COULD AFFECT OPERATION OR CAUSE IMPROPER ILLUMINATION OF THE OIL PRESSURE WARNING LAMP. A SMALL PILOT PORTION WAS ADDED TO THE THREADED AREA ON P.N. 25240KA051 AS SHOWN IN THE ILLUSTRATION BELOW." |
| 02-115-11R | 2016-05-23. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. IF YOU ENCOUNTER A CUSTOMER COMPLAINT CONCERNING WHITE SMOKE FROM THE EXHAUST PIPE AND/OR HIGH OIL CONSUMPTION, IT MAY BE THE RESULT OF THE #1 AND/OR #4 INTAKE VALVE GUIDE INSERTION HOLE IMPROPERLY MACHINED, PERMITTING OIL TO ENTER THE COMBUSTION CHAMBER. TO REMEDY THIS CONDITION, THE CYLINDER HEAD(S) WILL NEED TO BE REPLACED. PLEASE READ THIS BULLETIN IN ITS ENTIRETY BEFORE PROCEEDING. |
| 11-135-13 | 2016-05-23. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
| 18-166-13 | 2016-05-13. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
| SB-11-135-13 | 2014-01-03. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUBARU: ECM IS AVAILABLE FOR REPROGRAMMING FILES TO ADDRESS FALSE CEL/MIL ILLUMINATION AND THE DIAGNOSTIC TROUBLE CODE (DTC) P050A RESULTED FROM SPECIFIC CLUTCH OPERATIONS AND/OR DRIVING PATTERNS AFTER STARTING ENGINE. MODEL 2011-2013 LEGACY, FORESTER, IMPREZA. *PE |
| WQC-39 | 2012-12-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUBARU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOFTWARE CHANGE WILL NOT AFFECT FUEL ECONOMY OR PERFORMANCE, EVEN THOUGH A CORRECTION, FOR ENGINE CONTROL MODULE, HAS BEEN DEVELOPED FOR THE DEFICIENCY IN OBDII SYSTEM THERMOSTAT MONITORING LOGIC. MODELS 2011-2012 LEGACY, OUTBACK, IMPREZA SEDAN, WAGON, FORESTER, TRIBECA AND 2013 BRZ. *PE UPDATED 1/31/13. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.