The 2012 WRX with the EJ255 2.5L turbo is a high-strung performance platform that demands attentive maintenance. Built for enthusiasts, it's prone to ringland failure and head gasket issues when modified or pushed hard, plus typical Subaru transmission mount degradation and turbo-related problems.
Ringland Failure / Piston #4 Cracking
Common · high severity
Typical onset: 60,000-100,000 mi
Symptoms: Misfires on cylinder 4, CEL for P0304, Loss of compression on cylinder 4, Excessive blow-by or smoke from oil cap, Hesitation under boost, reduced power
Fix: Ringland failure typically requires short-block replacement or full rebuild with forged pistons. Expect 20-30 hours labor for engine removal, disassembly, machine work, and reinstall. Often triggered by aggressive tuning, low-octane fuel, or detonation.
Estimated cost: $4,500-8,000
Head Gasket Weeping/Seepage
Occasional · medium severity
Typical onset: 80,000-120,000 mi
Symptoms: Oil seepage on bottom of engine case, Coolant smell, slight loss of coolant over time, Minor overheating under load, Visible wetness around cylinder head perimeter
Fix: Classic Subaru boxer issue, though less catastrophic on turbo models than N/A. Head gasket replacement requires engine removal on these chassis for proper access. Plan 16-20 hours labor, replace timing belt and water pump while you're in there.
Estimated cost: $2,500-3,800
Turbocharger Failure
Occasional · high severity
Typical onset: 100,000-140,000 mi
Symptoms: Loud whine or grinding from turbo, Blue smoke on startup or acceleration, Loss of boost pressure, sluggish performance, Oil in intercooler or intake piping
Fix: IHI VF52 turbo sees bearing wear from heat cycles and oil coking if not allowed proper cooldown. Replacement is 6-9 hours including oil/coolant line work. Aftermarket options available at similar cost. Always inspect banjo bolt filters.
Estimated cost: $1,800-3,200
Transmission Mount Collapse
Common · low severity
Typical onset: 50,000-80,000 mi
Symptoms: Excessive drivetrain clunk on shifts, Vibration at idle, especially in reverse, Shifter slop or vague engagement, Visible torn rubber or sagging mount
Fix: The rear diff and transmission mounts are known weak points on this chassis, especially with spirited driving. Rear trans mount replacement is 1.5-2 hours, pitch stop mount another hour. Upgrade to polyurethane units recommended.
Estimated cost: $350-600
Throwout Bearing / Clutch Chatter
Common · medium severity
Typical onset: 60,000-90,000 mi
Symptoms: Squealing or chirping when clutch pedal depressed, Grinding on engagement, especially when cold, Chatter or vibration during takeoff, Hard pedal feel, difficult shifts
Fix: OEM throwout bearings wear prematurely; often done as part of clutch job. Transmission removal required, 6-8 hours labor. Replace clutch, pressure plate, pilot bearing, and flywheel resurface at same time to avoid comebacks.
Estimated cost: $1,400-2,200
Brake Light Switch Failure
Occasional · medium severity
Symptoms: Cruise control won't engage or cuts out, Brake lights stuck on or don't illuminate, Push-button start won't recognize brake input, CEL for brake switch circuit
Fix: Recalls issued for this, but many cars still experience failure. Switch replacement is 0.3 hours, but diagnosis can be tricky if intermittent. Check for recalls under brake light switch campaign first.
Estimated cost: $150-250
Banjo Bolt Filter Clogging
Occasional · high severity
Typical onset: 40,000-80,000 mi
Symptoms: Catastrophic turbo failure with no warning, Loss of oil pressure to turbo, Metal debris found in turbo oil feed, Often discovered post-turbo-failure autopsy
Fix: The tiny mesh filters in turbo oil feed banjo bolts trap debris and starve the turbo of oil. Inspect and clean every oil change or go filterless with aftermarket banjo bolts. Prevents $3k turbo replacements. Takes 15 minutes preventively.
Estimated cost: $0-50
Owner tips
Use premium fuel only—this engine is knock-sensitive and ringlands crack under detonation
Change oil every 3,750 miles with quality synthetic; these engines cook oil under boost
Let the car idle 30-60 seconds before shutdown to cool turbo and prevent oil coking
Inspect and clean/replace banjo bolt filters every 30k miles to prevent turbo starvation
If buying used, get a leakdown test and compression check—ringland failure is expensive and common on modified or hard-driven examples
Avoid heavily modified cars unless you have full service records and dyno sheets
Buy one if you're handy and understand the EJ255's quirks—fantastic driving experience, but budget $2-3k/year for inevitable engine or drivetrain work on higher-mileage examples.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 20V001000
2020-01-02 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (STI included), 2003-2014 Legacy and Outback, and 2005-2006 Saab 9-2X vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A."
These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: Subaru will notify their owners. General Motors will notify Saab owners. Dealers will replace the passenger air bag inflators with alternate inflators, free of charge. The recall began January 7, 2020. Subaru Owners may contact Subaru customer service at 1-844-373-6614. Saab owners may contact the Saab Customer Assistance Center at 1-800-955-9007. Subaru's number for this recall is TKA-20.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 20V002000
2020-01-02 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (including STI), 2003-2014 Legacy and Outback, and 2006 Saab 9-2X vehicles originally sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B."
These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: Subaru will notify their owners. General Motors will notify Saab owners. Dealers will replace the passenger air bag inflators, free of charge. The recall began January 7, 2020. Subaru owners may contact Subaru customer service at 1-844-373-6614. Saab owners may contact the Saab Customer Assistance Center at 1-800-955-9007. Subaru's number for this recall is TKB-20.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 20V003000
2020-01-02 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (including STI), 2003-2014 Legacy and Outback, and 2005-2006 Saab 9-2X vehicles originally sold, or ever registered, in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming or "Zone C."
These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: Subaru will notify their owners. General Motors will notify Saab owners. Dealers will replace the passenger air bag inflators, free of charge. The recall began January 7, 2020. Subaru owners may contact Subaru customer service at 1-844-373-6614. Saab owners may contact the Saab Customer Assistance Center at 1-800-955-9007. Subaru's number for this recall is TKC-20.
ELECTRICAL SYSTEM:IGNITION:SWITCH · 19V297000
2019-04-11
Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester vehicles, 2008-2011 Impreza vehicles, 2008-2014 WRX vehicles, 2005-2014 Legacy vehicles, 2005-2014 Outback vehicles and 2006-2008 Tribeca vehicles equipped with a mechanical key ignition switch installed as a replacement part. The ball spring inside the switch may break, reducing the strength of the ignition switch. If this occurs, the weight on the key ring and certain road conditions could cause the ignition switch to move out of the run position to the accessory position, turning off the engine.
Consequence: The engine turning off unexpectedly can increase the risk of a crash. If a crash occurs under this condition, the air bag may not deploy, increasing the risk of injury.
Remedy: Subaru will notify owners, and dealers will inspect the ignition switch, replacing the ignition switch, if necessary, free of charge. The recall began May 10, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUF-91.
EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH · 19V149000
2019-02-28
Subaru of America, Inc. (Subaru) is recalling certain 2014-2016 Forester, 2008-2016 Impreza sedans, 2012-2016 Impreza station wagons, 2008-2014 WRX sedans (including STI), and 2013-2017 Crosstrek vehicles. Exposure to certain contaminants may cause the brake light switch to malfunction, preventing the brake lights from illuminating and also preventing keyless ignition vehicles from starting and CVT/automatic transmissions from being able to be shifted out of Park.
Consequence: Brake lights that do not illuminate properly will not alert other drivers that the vehicle is slowing or stopping, increasing the risk of crash.
Remedy: Subaru will notify owners, and dealers will replace the brake light switch, free of charge. The recall began April 15, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUE-90.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 19V007000
2019-01-09 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2010-2013 Forester, 2010-2014 Tribeca, WRX, Outback, Legacy, and 2010-2011 Impreza vehicles sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence: An explosion of an inflator within the passenger frontal air bag module may result in sharp metal fragments striking the front seat passenger, driver or other occupants resulting in serious injury or death.
Remedy: Subaru has notified owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began January 25, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is TKA-19.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 19V008000
2019-01-09 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2010-2014 Tribeca, WRX, Outback, and Legacy vehicles, 2010-2011 Impreza vehicles and 2010-2013 Forester vehicles sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence: An explosion of an inflator within the passenger frontal air bag module may result in sharp metal fragments striking the front seat passenger, driver or other occupants resulting in serious injury or death.
Remedy: Subaru is notifying owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began January 25, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is TKB-19.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 19V009000
2019-01-09 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2010-2014 Tribeca, WRX, Legacy and Outback vehicles, 2010-2011 Impreza vehicles and 2010-2013 Forester vehicles sold, or ever registered, in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence: An explosion of an inflator within the passenger frontal air bag module may result in sharp metal fragments striking the front seat passenger, driver or other occupants resulting in serious injury or death.
Remedy: Subaru is notifying owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began on January 25, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is TKC-19.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 18V012000
2018-01-09 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Legacy, Forester, Tribeca, WRX and Outback vehicles, and 2009-2011 Impreza vehicles sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence: An explosion of an inflator within the passenger frontal air bag module may result in sharp metal fragments striking the front seat passenger, driver or other occupants resulting in serious injury or death.
Remedy: Subaru will notify owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began on February 9, 2018. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is TKA-18.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 17V014000
2017-01-10 · EA15001
Subaru of America, Inc. (Subaru) is recalling certain 2005-2006 Subaru Baja, 2006-2011 Impreza (including WRX and STI models), 2006-2012 Tribeca, 2009-2012 Forester, Legacy, Outback, and 2012 WRX vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Subaru will notify owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began March 6, 2017. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is TKA-17.
SERVICE BRAKES, HYDRAULIC · 14V830000
2014-12-31
Subaru of America, Inc. (Subaru) is recalling certain model year 2008-2011 Impreza, 2008-2014 WRX and STI, and 2009-2013 Forester vehicles, currently, or formerly, registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia that were remedied under recall 14V-311 prior to December 23, 2014. The brake lines may experience brake line corrosion due to salt water splashing on the brake lines through a gap in the fuel tank protector.
Consequence: Brake fluid may leak due to the brake line corrosion and may result in longer distances being required to slow or stop the vehicle, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will apply an anti-corrosion wax to the four-way joint connector area of the brake line system, free of charge. The recall began on January 27, 2015. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WQQ-52. Notes: This recall is specific to affected Forester, Impreza, WRX, and STI customers who had their car remedied under NHTSA recall no. 14V-311 prior to December 23, 2014. Subaru has determined that this remedy was inadequate due to incomplete repair instructions provided to dealers. Affected Forester, Impreza, WRX, and STI vehicles that were not repaired under NHTSA recall no. 14V-311 prior to December 23, 2014 will continue to be processed under NHTSA recall no. 14V-311. Affected vehicles not currently, or formerly, registered in the salt belt states identified in this recall are eligible for repair, at no cost to the customer, upon request.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS · 14V311000
2014-06-10
Subaru of America, Inc. (Subaru) is recalling certain model year 2005-2009 Outback and Legacy, 2008-2011 Impreza and 2008-2014 Impreza WRX/STI, and 2009-2013 Forester vehicles, currently, or formerly, registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia. Salt water could splash on the brake lines through a gap in the fuel tank protector, resulting in excessive corrosion of the brake lines.
Note that affected vehicles not currently, or formerly registered, in the salt belt states identified above are eligible for repair, at no cost to the customer, upon request.
Consequence: Brake line corrosion may result in brake fluid leakage. Fluid leakage may result in longer distances being required to slow or stop the vehicle, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will test the brake system by depressing the brake pedal and inspecting for brake fluid leaks. If no brake fluid seepage is observed, the affected areas will be rustproofed with anti-corrosion wax. If brake fluid seepage is observed, the brake lines will be replaced followed by rustproofing with anti-corrosion wax. These services will be performed free of charge. The recall began July 2014 and second notifications will run through November 2014. Owners may contact Subaru at 1-800-782-2783. Subaru's recall campaign number is WQK-47. Note: This recall supersedes recall 13V-110 which applied to certain 2005-2009 Legacy/Outback vehicles. Vehicles that were remedied under the previous campaign still need additional areas rust-proofed.
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