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Service bulletins for the 2010 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.

230 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
WUF-912019-05-20. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH; ELECTRICAL SYSTEM:IGNITION. Owner Notification, Owners will be notified by first class mail on May 10, 2019. Owners with a valid email address on file will also be notified by email. Subaru retailers with affected vehicles will receive an affected VIN list from their Zone Office prior to owner notification. Service, Parts, and Claim Instructions Detailed service, parts, and claim information is available in the WUF-91 Product Campaign Bulletin on STIS. A copy of the owner notification is included at the end of the bulletin.
WUF-91R2019-05-20. Service bulletin. ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:SWITCH. Subaru of America, Inc. (Subaru) is recalling certain vehicles in the ranges listed below to inspect and potentially replace the ignition switch. A total of 511 U.S. vehicles will be affected by this recall.
WUF-91-0412192019-05-20. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH; ELECTRICAL SYSTEM:IGNITION. New Subaru Safety Recall: WUF-91 Replacement Ignition Switch Recall Subaru of America, Inc. (Subaru) is recalling certain vehicles in the ranges listed below to inspect and potentially replace the ignition switch. A total of 511 U.S. vehicles will be affected by this recall.
TKA19-TKB19-TKC12019-05-20. Service bulletin. AIR BAGS. SUBARU OF AMERICA, INC. has determined that a defect, which relates to motor vehicle safety, exists in certain Subaru vehicles listed above, equipped with a non-desiccated Takata-sourced passenger side frontal airbag containing the propellant Phase Stabilized Ammonium Nitrate (PSAN).
WUE-90R2019-05-20. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS. Subaru of America, Inc. (Subaru) is recalling certain Crosstrek, Forester, Impreza, and WRX vehicles to replace the brake lamp switch. A total of 1,303,530 U.S. vehicles will be affected by this recall.
TKA-192019-03-11. Service bulletin. AIR BAGS. SUBARU OF AMERICA, INC. has determined that a defect, which relates to motor vehicle safety, exists in certain Subaru vehicles listed above, equipped with a non-desiccated Takata-sourced passenger side frontal airbag containing the propellant Phase Stabilized Ammonium Nitrate (PSAN). This phase of the Takata recall expansion includes all remaining vehicles equipped with a non-desciccated Takata-sourced passenger side frontal air bag containing the propellant PSAN. Recall Codes TKA-19-TKB-19-TKC-19
04-13-09R2019-02-19. Service bulletin. STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM. This post was revised in error. It has been corrected back and removed from the posting list. The message was corrected on 04-13-14R posting dated 11/14/2018.
03-82-182018-12-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. This Service Information bulletin announces a design change to the clutch release bearing used on the models as listed above. During assembly of the bearing, a different type of grease is used which has a higher resistance to heat. In cases where the operator keeps a foot on the clutch pedal for extended periods, an increased amount of heat is generated which can cause the grease inside the bearing to deteriorate. In a case of prolonged clutch pedal application, seizure of the bearing can occur with potential damage to other related components.
03-82-182018-12-10. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. This Service Information bulletin announces a design change to the clutch release bearing used on the models as listed above. During assembly of the bearing, a different type of grease is used which has a higher resistance to heat. In cases where the operator keeps a foot on the clutch pedal for extended periods, an increased amount of heat is generated which can cause the grease inside the bearing to deteriorate. In a case of prolonged clutch pedal application, seizure of the bearing can occur with potential damage to other related components.
07-128-18R2018-11-05. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH. This Service Information bulletin provides a measurement and adjustment procedure for the stop lamp switch. An improperly adjusted (or faulty) stop lamp switch can cause any of the DTCs listed above to set and result in the related system?s warning lamp to illuminate.
07-128-18R2018-07-16. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin provides a measurement and adjustment procedure for the stop lamp switch. An improperly adjusted (or faulty) stop lamp switch can cause any of the DTCs listed to set and result in the related system?s warning lamp to illuminate.
WQQ-522018-06-18. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS. Annoucment to UPDATE ? Subaru Recall Campaign WQQ?52 Brake Line Corrosion
15-222-182018-06-18. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT. This bulletin announces a design change to the A/C Condenser receiver-dryer assembly. The change involves the addition of a rubber end cap and retaining clip onto the bottom of the receiver-dryer tank portion to prevent corrosion intrusion and enhance sealing.
04-13-09R2018-06-11. Service bulletin. EQUIPMENT; STEERING:HYDRAULIC POWER ASSIST:PUMP. If you encounter a vehicle that has a groaning type noise coming from the power steering pump when the wheel is turned to the full right or left position when the vehicle is parked, it may be caused by the relief valve vibrating within the pump. In lieu of replacing the power steering pump, the relief valve is now available as a replacement part.
01-168-09R2018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Revised TSB. The Subaru Lock Information Site (SLIS) is located at http://lockinfo.subaru.com, and provides information on how to obtain immobilizer codes and key cut codes for Subaru vehicles from the 2000MY to present. This bulletin identifies the equipment required to initialize (reset) the immobilizer code and cut the key blanks, for both immobilizer and non-immobilizer type keys. Subaru of America began using immobilizer systems in some 2005MY vehicles (please refer to Immobilizer Chart for more detailed information).
12-232-182018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SEATS; EQUIPMENT. This bulletin announces a design change to the front seat back upholstery retaining hooks (HOOK FLAT MAT). The change is in response to customer concerns of discomfort coming from the center of the seat back and outside bolsters. When a hook fails, the center (flat) portion of the seat back drops inward from lack of support. If not repaired, with continued use, the seat back frame may break down the foam padding covering it. Eventually, the frame will likely wear through and damage the trim cover.
12-231-18R2018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE. This bulletin announces a design change to the air vent grille located in the lower portion of the trunk (or cargo) area. The shutters of the vent grille are designed to open briefly and relieve cabin pressure when the doors are shut with the windows fully closed. The vent grilles have rubber ?shutters? which occasionally, may catch on the frame (case) portion and not close properly allowing outside air / odor to enter the cabin.
02-172-18R2018-06-11. Service bulletin. ENGINE; EQUIPMENT. 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.
12-232-182018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SEATS. This bulletin announces a design change to the front seat back upholstery retaining hooks (HOOK FLAT MAT). The change is in response to customer concerns of discomfort coming from the center of the seat back and outside bolsters. When a hook fails, the center (flat) portion of the seat back drops inward from lack of support. If not repaired, with continued use, the seat back frame may break down the foam padding covering it. Eventually, the frame will likely wear through and damage the trim cover.
12-231-18R2018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE; STRUCTURE:FRAME AND MEMBERS. This bulletin announces a design change to the air vent grille located in the lower portion of the trunk (or cargo) area. The shutters of the vent grille are designed to open briefly and relieve cabin pressure when the doors are shut with the windows fully closed. The vent grilles have rubber ?shutters? which occasionally, may catch on the frame (case) portion and not close properly allowing outside air / odor to enter the cabin.
02-172-18R2018-06-11. 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.
PAN-AUDIO2018-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. PANASONIC AUDIO SYSTEMS TROUBLESHOOTING GUIDE
WQR53-memo2018-06-04. Service bulletin. AIR BAGS. NHTSA announced in a press conference today, the planned expansion of the airbag inflator recall to an additional 35 to 40 million vehicles from various manufacturers nationwide. We are currently assessing which of our models may be covered. We hope to make that determination soon. When specific vehicles are identified, owners will be notified plus vehicle identification numbers (VINs) can be researched on Subaru.com or on the NHTSA web site Safercar.gov.
WVU31R2018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. 2.5 Liter N/A engine only. REVISED. Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming. A modification to the Engine Control Module software logic has been developed to improve the performance of the emission control system. This software change will not adversely affect fuel economy or performance. This software update is intended to improve vehicle emissions when the vehicle is operated in cold weather and the engine is turned off and restarted within short periods of time such as in several minute intervals. The A/F sensor contains a heating element, which is controlled by the ECM, and which assists the sensor in reaching an optimum temperature, resulting in better accuracy. When the vehicle is operated under the conditions described above, there could be a longer than desired delay in the ECM?s turning on the A/F sensor heating element, resulting in higher than desired emissions. This software enhancement will correct that condition.
01-168-09R2018-04-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.