The 2011 Civic Si with the K20Z3 engine is a solid platform, but fourth-gear synchro failure and piston ring oil consumption are well-documented killers. The transmission issues often appear before engine problems, but both can turn an otherwise reliable car into a money pit.
Symptoms: Grinding into third or fourth gear, especially when cold, Difficulty downshifting into third under deceleration, Eventual lockout from third or fourth gear entirely
Fix: Transmission removal and rebuild with OEM synchro rings and sleeve replacement. 8-12 hours labor depending on shop familiarity. Some techs will replace all synchros while it's apart. Clutch replacement often done simultaneously since you're already in there.
Estimated cost: $2,200-3,800
Piston Ring Oil Consumption (Engine Block Recall)
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Burning 1+ quart of oil per 1,000 miles, Blue smoke on startup or hard acceleration, Fouled spark plugs (cylinder 2 and 3 most common), Check engine light with P0301-P0304 misfire codes
Fix: Honda extended warranty covered this until 8 years/125k miles, but most 2011s are past that now. Proper fix is piston ring replacement or short block swap. Piston ring job alone: 16-20 hours. Short block replacement: 18-24 hours. Many owners try catch cans or thicker oil as bandaids.
Estimated cost: $3,500-6,500
Transmission Oil Cooler Line Leaks
Occasional · medium severity
Typical onset: 90,000-130,000 mi
Symptoms: Transmission fluid puddle under engine bay, driver side, Low fluid level causing notchy shifting, Visible corrosion or seepage at cooler line fittings near radiator
Fix: Replace both hard lines and rubber sections as a set. Lines run along frame rail and require removal of undertray and some exhaust heat shield work. 2-3 hours labor plus fluid flush.
Estimated cost: $400-700
Driver-Side Engine Mount Failure
Common · low severity
Typical onset: 70,000-110,000 mi
Symptoms: Excessive engine movement during launches or hard shifts, Clunking noise when letting off throttle or engaging clutch, Vibration transmitted through shifter at idle
Fix: Replace driver-side hydraulic mount. Transmission side mount often fails around the same time. 1.5-2 hours per mount. Many owners upgrade to stiffer aftermarket mounts, which increases NVH but improves shift feel.
Estimated cost: $250-450
Front Lower Control Arm Bushings
Occasional · low severity
Typical onset: 80,000-120,000 mi
Symptoms: Clunking over bumps from front suspension, Vague or wandering steering feel, Uneven tire wear on inside edge of front tires
Fix: Replace both lower control arms as assemblies (bushings are not serviceable separately on OEM parts). Alignment required after replacement. 2-3 hours labor total.
Estimated cost: $450-750
Clutch Master Cylinder Failure
Occasional · medium severity
Typical onset: 100,000-140,000 mi
Symptoms: Clutch pedal sinks to floor and stays there, Soft or spongy pedal feel that doesn't improve with bleeding, Visible fluid leak at firewall where master mounts
Fix: Replace clutch master cylinder and bleed system. Internal seal failure is common. 2-2.5 hours labor. Replace slave cylinder at same time if it's original (adds 1 hour since trans stays in car).
Estimated cost: $350-600
Owner tips
Change manual transmission fluid every 30k with Honda MTF or equivalent GL-4 spec fluid—this delays but doesn't prevent synchro wear
Monitor oil consumption religiously after 60k miles; add catch can if burning starts
Avoid neutral drops and clutch dumps if you want synchros to last past 80k
Check transmission cooler lines annually for seepage once past 80k—catching them early prevents expensive fluid loss
If buying used, insist on compression test and trans inspection—both major failures leave the car almost worthless
Buy one with documented transmission rebuild and compression test showing even cylinders above 180 PSI, or budget $4k-6k for inevitable repairs within 20k miles.
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 · 19V502000
2019-06-27 · EA15001
Honda (American Honda Motor Co.) is recalling certain 2009-2014 Acura TSX, 2011-2014 TSX Sport Wagon, 2010-2013 ZDX, 2008-2012 Honda Accord, 2010-2011 Accord Crosstour, 2006-2011 Civic and Civic Hybrid, 2008-2010 Civic GX NGV, 2012-2015 Crosstour, 2007-2011 CR-V, 2009-2013 Fit, 2014 Fit EV, 2010-2014 Insight, and 2009-2015 Pilot vehicles.
The vehicles are equipped with passenger frontal air bag inflators assembled as a recall remedy part or replacement service part, that 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: Honda will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began August 12, 2019. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are F5F and Q5E.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 19V378000
2019-05-16
Honda (American Honda Motor Co.) is recalling certain 2009-2014 Acura TSX, 2011-2013 TSX Sport Wagon, and 2010-2012 ZDX and 2008-2012 Honda Accord, 2010-2011 Accord Crosstour, 2006-2011 Civic, Civic Hybrid and Civic NGV, 2012-2014 Crosstour, 2007-2011 CR-V, 2009-2013 Fit, 2010-2013 Insight, and 2009-2015 Pilot vehicles. The front passenger air bag inflator may have been installed incorrectly during replacement.
Consequence: An incorrectly installed air bag inflator may not properly deploy the passenger frontal air bag in the event of a crash, increasing the risk of injury.
Remedy: Honda will notify owners, and dealers will inspect the inflator installation and, if necessary, replace the passenger frontal air bag module assembly, free of charge. The recall began July 5, 2019. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are M4O, P4R, T4Q, and W4P.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 18V661000
2018-09-27 · EA15001
Honda (American Honda Motor Co.) is recalling certain 2014 Honda Insight and Acura TSX and TSX Wagon, 2014-2015 Honda Crosstour and Pilot vehicles nationwide, as well as certain 2014 Honda FCX Clarity and Fit EV vehicles in Florida, Hawaii, Puerto Rico, Texas, Alabama, Georgia, Louisiana, Mississippi, South Carolina, California, American Samoa, Guam, the Northern Mariana Islands (Saipan) and the U.S. Virgin Islands.
Honda is also recalling certain 2011-2013 Acura TSX, TSX Wagon and ZDX, Honda Crosstour, Insight, Fit and Pilot vehicles, 2011-2012 Honda Accord and 2011 Honda Civic NGV, Civic, Civic Hybrid and CR-V vehicles in Arizona, Arkansas, Delaware, the 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.
Lastly, Honda is recalling certain 2010-2013 Acura TSX and ZDX, Honda Crosstour, Fit, Insight and Pilot, 2011-2013 TSX Wagon, 2010-2012 Honda Accord and 2010-2011 Honda Civic NGV, Civic, Civic Hybrid and CR-V vehicles in 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 air bag inflators assembled as part of the frontal air bag modules, and used as original equipment or replacement equipment (such as after a vehicle crash necessitating replacement of the original air bags), may explode due to propellant degradation occurring after long-term exposure to higher 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: Honda will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began November 6, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are M2J and S2K.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 18V268000
2018-04-26
Honda (American Honda Motor Co.) is recalling certain 2003-2012 Honda Accord and Pilot, 2010 Accord Crosstour, 2001-2011 Civic, 2002-2011 CR-V, 2003-2004, 2006-2008 and 2011 Element, 2007 and 2009-2013 Fit, 2010-2012 Insight, 2002-2004 Odyssey, and 2012 Ridgeline vehicles. The front passenger air bag may have been installed incorrectly during replacement.
Consequence: An incorrectly installed air bag may deploy improperly in the event of a crash, increasing the risk of injury.
Remedy: Honda will notify owners, and dealers will inspect and, if necessary, replace the passenger frontal air bag module assembly, free of charge. The recall began June 22, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are K1P, and M1O.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 18V042000
2018-01-09 · EA15001
Honda (American Honda Motor Co.) is recalling certain 2010-2013 Acura TSX, ZDX, Honda Accord Crosstour, Fit, Insight and Pilot vehicles, 2011-13 Acura TSX Sportswagon, 2010-2012 Honda Accord,, 2010-2011 Honda Civic, Civic NGV, Civic Hybrid and CR-V vehicles and 2013 Honda FCX Clarity and Fit EV vehicles 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."
Additionally, Honda is recalling certain 2010-2012 Acura TSX, Honda Accord, Accord Crosstour, Fit and Pilot, 2010-2011 Honda Civic, Civic NGV, Civic Hybrid and CR-V, and 2010 Acura ZDX and Honda Insight vehicles 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."
Unless included in Zones A or B above, Honda is recalling certain 2009 Acura TSX, Honda Accord, Civic, Civic NGV, Civic Hybrid, CR-V, Fit, and Pilot vehicles 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 are equipped with certain air bag inflators assembled as part of the frontal air bag modules, and used as original equipment or replacement equipment (such as after a vehicle crash necessitating replacement of the original air bags), may explode due to propellant degradation occurring after long-term exposure to higher 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: Honda will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began February 16, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are B0K and L0J.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 17V545000
2017-08-31
Honda (American Honda Motor Co.) is recalling certain 2008-2012 Accord, 2010-2012 Accord Crosstour, 2006-2011 Civic, 2007-2011 CR-V, 2009-2012 Fit and Pilot, 2010-2012 Insight, and 2009-2012 Acura TSX vehicles that received replacement passenger frontal air bag inflators. One dealership may have incorrectly installed the replacement air bag inflators.
Consequence: In the event of a crash, an incorrectly installed passenger frontal air bag inflator may deploy the air bag improperly, increasing the risk of injury.
Remedy: Honda will notify owners, and dealers will replace the passenger frontal air bag module assembly, free of charge. The recall began October 30, 2017. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are O07, Y0A, N06, G05, M04, Y01, and O09.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 17V030000
2017-01-10 · EA15001
Honda (American Honda Motor Co.) is recalling certain 2009-2012 Acura TSX, 2011-2012 Acura TSX Wagon, 2010-2012 Acura ZDX, 2008-2012 Honda Accord, 2010-2012 Honda Accord Crosstour and Honda Insight, 2009-2012 Honda Fit, 2009-2012 Pilot, 2007-2011 Honda CR-V, 2012 Honda FCX Clarity and 2006-2011 Honda Civic, Civic Hybrid, Civic NGV vehicles originally sold, or ever registered, in 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."
Additionally, if not included in "Zone A" above, Honda is recalling certain 2009 Acura TSX, Honda Fit and Pilot, 2008-2009 Honda Accord, 2006-2009 Civic, Civic Hybrid and Civic NGV, and 2007-2009 Honda CR-V vehicles originally sold, or ever registered, in 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."
Additionally, if not included in "Zone B" above, Honda is recalling certain 2008 Honda Accord, 2006-2008 Honda Civic, Civic Hybrid and Civic NGV and 2007-2008 Honda CR-V vehicles originally sold, or ever registered, in 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 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: Honda will notify owners, and dealers will replace the front passenger side air bag inflator, free of charge. The manufacturer has mailed an interim notification, and will send a second notification when parts are available. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KE1 and KE2.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 16V346000
2016-05-24 · EA15001
Honda (American Honda Motor Co.) is recalling certain model year 2009-2011 Acura TSX, 2011 TSX Wagon, 2010-2011 Acura ZDX, 2008-2011 Honda Accord, 2010-2011 Accord Crosstour, 2006-2011 Civic, Civic Hybrid, and Civic GX, 2007-2011 CR-V, 2010-2011 FCX Clarity and Insight, and 2009-2011 Fit, and Pilot vehicles originally sold, or ever registered, in 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."
Additionally, unless already included in "Zone A" above, Honda is recalling certain model year 2008 Honda Accord, 2006-2008 Civic, Civic Hybrid and Civic GX, and 2007-2008 CR-V vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, the 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."
Vehicles not originally sold or ever registered in either Zones A or B are not subject to this safety recall.
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: Honda will notify owners, and dealers will replace the inflator, free of charge. The recall began March 2017. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall is KA4, KA5, KA6, and KA7.
HONDA IS RECALLING CERTAIN MODEL YEAR 2011 HONDA CIVIC VEHICLES. TO PREVENT FUEL FROM LEAKING OUT OF A VEHICLE'S FUEL TANK INTO THE EVAPORATIVE EMISSIONS CANISTER IN THE EVENT A ROLL-OVER INCIDENT OCCURS, THE FUEL PUMP MODULE IS EQUIPPED WITH A ROLL OVER VALVE (ROV). DUE TO IMPROPER ULTRASONIC WELDING OF THE PLASTIC CASE THAT HOUSES THE ROV WITHIN THE FUEL PUMP MODULE, THE CASE MATERIAL MAY BREAK OR CRACK, WHICH MAY CAUSE THE ROV TO SEPARATE FROM THE CASE AND FAIL TO FUNCTION, THEREBY INCREASING THE RISK OF FUEL LEAKAGE IN A ROLL-OVER INCIDENT.
Consequence: FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
Remedy: DEALERS WILL INSPECT THE FUEL PUMP MODULE AND IF NECESSARY REPLACE THE MODULE FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 25, 2011. OWNERS MAY CONTACT HONDA CUSTOMER SERVICE AT 1-800-999-1009.
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.