NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
58 reportsClear category filter90,108 miles · Apr 21, 2015
Engine
WHILE EXITING A PARKING LOT AND ACCELERATING TO APROX. 20 MPH, THE VEHICLE BEGAN TO SHUDDER AND VIBRATE VIOLENTLY ACCOMPANIED BY THE ILLUMINATION OF THE CHECK ENGINE WARNING LIGHT. WE SHORTLY AFTERWARD NOTICED A REDUCTION IN POWER. THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP, WHO STATED THAT, THERE WERE SEVERAL MISFIRE…
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WHILE EXITING A PARKING LOT AND ACCELERATING TO APROX. 20 MPH, THE VEHICLE BEGAN TO SHUDDER AND VIBRATE VIOLENTLY ACCOMPANIED BY THE ILLUMINATION OF THE CHECK ENGINE WARNING LIGHT. WE SHORTLY AFTERWARD NOTICED A REDUCTION IN POWER. THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP, WHO STATED THAT, THERE WERE SEVERAL MISFIRE CODES GENERATED WHEN DIAGNOSED. THE REPAIR SHOP DIAGNOSED THE FAILURE AS THE CYLINDER 5 COIL HAVING MELTED INTO THE CYLINDER. AS A RESULT, THE SHOP HAD TO REMOVE THE CYLINDER HEAD IN ORDER TO REMOVE THE COIL AND SPARK PLUG FROM THE VEHICLE. THE REPAIR SHOP STATED THAT THE FAILURE WAS CAUSED BY THE SPARK PLUG BECOMING LOOSE AND FUEL LEAKING INTO THE CYLINDER HEAD CHAMBER. THE REPAIR SHOP STATED THAT THIS WAS THE THIRD OF THESE FAILURES SEEN BY THEM. THE DEALER OF PURCHASE AND THE MANUFACTURER WERE ALERTED OF THE FAILURE BUT OFFERED NO RESOLUTION. THE DEALER (KEELER HONDA, LATHAM NY) WAS IN FACT QUITE RUDE ABOUT THE FAILURE IN GENERAL. WE WERE CONCERNED OF THE SAFETY RISK INVOLVED WITH THE FAILURE. THE VEHICLE WAS REPAIRED WITH THE TOTAL BILL OF $2411.00. THE FAILURE MILEAGE WAS 90,108. *TR
NHTSA ODI #10712097
78,194 miles · Jan 17, 2015
Engine
THE FRONT AND RIGHT SIDE ENGINE MOUNTS FOR THIS VEHICLE WERE BROKEN AROUND 78,000 MILES. THE ENGINE MOUNTS SHOULD NOT BROKEN WITHIN THIS SHORT MILEAGES AND YEARS. THERE SEEMS LOTS OF OTHER HONDA ODYSSEY OWNERS HAVE THE SAME ENGINE MOUNTS ISSUE. THE ENGINE MOUNT REPLACEMENT IS VERY EXPENSIVE AND THIS IS ALSO A BIG SAFETY ISS…
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THE FRONT AND RIGHT SIDE ENGINE MOUNTS FOR THIS VEHICLE WERE BROKEN AROUND 78,000 MILES. THE ENGINE MOUNTS SHOULD NOT BROKEN WITHIN THIS SHORT MILEAGES AND YEARS. THERE SEEMS LOTS OF OTHER HONDA ODYSSEY OWNERS HAVE THE SAME ENGINE MOUNTS ISSUE. THE ENGINE MOUNT REPLACEMENT IS VERY EXPENSIVE AND THIS IS ALSO A BIG SAFETY ISSUE. THE ENGINE MOUNT, ESPECIALLY THE FRONT ENGINE MOUNT DESIGN SHOULD BE INVESTIGATED AND SHOULD BE REPLACED WITH A BETTER ENGINE MOUNT. *TR
NHTSA ODI #10676252
106,000 miles · Dec 8, 2014
Engine
TL* THE CONTACT OWNS A 2007 HONDA ODYSSEY. THE CONTACT STATED THAT WHILE PARKING AND APPLYING THE BRAKES, THE VEHICLE ACCELERATED WITHOUT WARNING. THE FAILURE RECURRED ONE OTHER TIME. THE VEHICLE WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOT BEEN NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 106,000.
NHTSA ODI #10662718
123,500 miles · Dec 5, 2014
Engine
THE ENGINE WAS MAKING PINGING SOUNDS LIKE LIFERS WERE BAD, BUT COMPUTER DIDN'T SHOW ANYTHING WRONG AND NO ENGINE LIGHTS CAME ON, TOOK TO HONDA DEALER THEY SAID BEARINGS BAD AND NEEDED NEW ENGINE. WHY WOULD THAT HAPPEN WHEN ENGINE OIL WAS MAINTAINED AND CHANGED . NEVER OVER HEATED ETC. *TR
NHTSA ODI #10662478
113,000 miles · Nov 15, 2014
Engine
THE CHECK ENGINE LIGHT WENT ON WHILE I WAS DRIVING ON A FOUR LANE HIGHWAY AT 65 MPH. THERE WAS NO WARNING OR PREVIOUS SIGN OF PROBLEMS. THE VEHICLE HAD NOT BEEN DRIVEN UNDER HARSH CONDITIONS, AND IT WAS MAINTAINED APPROPRIATELY. I WAS ABLE TO PULL CAR INTO A DEALERSHIP WITHIN LESS THAN 1 MILE. I FELT I HAD LOST ACCELERATION A…
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THE CHECK ENGINE LIGHT WENT ON WHILE I WAS DRIVING ON A FOUR LANE HIGHWAY AT 65 MPH. THERE WAS NO WARNING OR PREVIOUS SIGN OF PROBLEMS. THE VEHICLE HAD NOT BEEN DRIVEN UNDER HARSH CONDITIONS, AND IT WAS MAINTAINED APPROPRIATELY. I WAS ABLE TO PULL CAR INTO A DEALERSHIP WITHIN LESS THAN 1 MILE. I FELT I HAD LOST ACCELERATION AND POWER. IT TURNS OUT THAT THE SPARK PLUG BLEW THROUGH THE ALUMINUM CYLINDER HEAD AND I LOST 2 CYLINDERS ON A V6 ENGINE. I'M TOLD THAT METAL DROPPED INTO THE CYLINDER SCORING IT DEEPLY ENOUGH THAT IT CAN'T BE REPAIRED. THERE APPEARS TO BE A WEALTH OF DOCUMENTATION OF THIS PROBLEM FOR HONDA ENGINES AND HONDA HAS DENIED ANY DEFECT OR RESPONSIBILITY. FORTUNATELY, I WAS NOT IN ANY ACCIDENT OR INJURED BUT THIS SEEMS TO BE A SAFETY PROBLEM, HAD I BEEN ON A MAJOR FREEWAY, I'M NOT SURE THIS WOULD HAVE WORKED OUT THE SAME. THE CAR WILL NOW HAVE TO BE TOTALED A THE REPAIR COSTS CANNOT BE JUSTIFIED ($6,000-7,500). HONDA OFFERED NO GOOD WILL IN ANY WAY. *TR
NHTSA ODI #10655224
106,500 miles · Oct 24, 2014
Engine
MY 2007 HONDA ODYSSEY TOURING VAN HAD A PROBLEM WITH THE ENGINE ICON APPEARING ON MY DASH. I CALLED MY DEALER, FOR THIS PROBLEM WASN'T RESOLVED ON THE LAST SERVICE VISIT. THEY SAID TO BRING IT IN. I ADDED 3/4 QT. OF OIL DUE TO THE OIL LEVEL, AT LAST CHECK FINE, NOW INDICATED THE LEVEL TO BE AT ITS LOWEST POINT IN THE APPROVE…
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MY 2007 HONDA ODYSSEY TOURING VAN HAD A PROBLEM WITH THE ENGINE ICON APPEARING ON MY DASH. I CALLED MY DEALER, FOR THIS PROBLEM WASN'T RESOLVED ON THE LAST SERVICE VISIT. THEY SAID TO BRING IT IN. I ADDED 3/4 QT. OF OIL DUE TO THE OIL LEVEL, AT LAST CHECK FINE, NOW INDICATED THE LEVEL TO BE AT ITS LOWEST POINT IN THE APPROVED RANGE FOR RUNABILITY. SERVICES PERFORMED, AND WHEN I PICKED IT UP, I NOTICED THE ENGINE ICON STILL FLASHING ON THE DASH. WENT IN TO GET A SERVICE ADVISOR TO VIEW, AND ON A SECOND RE-START THIS HAD DISAPPEARED. THINKING ALL WAS NOW WELL (AND WAS THIS POSSIBLY TIED TO A SOFTWARE UPDATE SERVICE?), TOOK THE VEHICLE ABOUT 35 MILES HOME TO A GROCERY STORE. WHEN I HAD FINISHED SHOPPING, AND STARTED MY VAN, THERE IT WAS AGAIN, THE ENGINE ICON, FLASHING AWAY. THE NEXT DAY I REPORTED THIS TO MY DEALER, AND THEY SAID BRING IT IN. AS THE ENGINE WAS VISIBLY HOT, I SAID I WOULD TRY AND HOPED TO MAKE IT THERE. GETTING OF THE TURNPIKE EXIT, MY VAN ENGINE QUIT AND LUCKILY I COASTED IN TO A PARK 'N RIDE PARKING LOT. I CALLED MY DEALER TO FIND OUT THEY HAD NO WRECKER BUT USED A SERVICE. THEY TOLD ME TO GET IT THERE SO THEY COULD LOOK AT IT. I COOLED THE ENGINE WITH HOOD UP ON A COOL RAINY DAY, AND RE-STARTED MY VAN, AND MADE IT TO THE DEALERSHIP. I WAS SUPPLIED WITH A LOANER CAR, AND THEY SAID THEY WOULD CHECK OVER MY VAN ON THE NEXT DAY. AFTER EVERYTHING, WE WERE NOTIFIED WE HAD BLOWN A HEAD GASKET, LEADING TO FAILURE OF OUR ENGINE. THIS IN SPITE OF MAINTAINING ALL FLUID LEVELS PROPERLY! WE WOULD NEED A NEW ENGINE, AND NO, THE EXTENDED WARRANTY WE PURCHASED DOES NOT COVER THIS WORK. VERY, VERY ANGRY!! *TR
NHTSA ODI #10649668
79,438 miles · Sep 3, 2014
Engine
TL* THE CONTACT OWNS A 2007 HONDA ODYSSEY. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 79,438.
NHTSA ODI #10630439
97,000 miles · Aug 29, 2014
Engine
WHEN ACCELERATING FROM IDLE, AT TIMES, THE ENGINE IS SLUGGISH AND DOESN'T SEEM TO RESPOND IMMEDIATELY. THE ENGINE REVS SLIGHTLY AND THEN AS IT SEEMS TO ENGAGE, IT JERKS FORWARD. *TR
NHTSA ODI #10629358
96,777 miles · Aug 29, 2014
Engine
ON DECEMBER 18, 2013, MY CHECK ENGINE LIGHT CAME ON. I TOOK THE VAN TO AN EXPRESS OIL CHANGE COMPANY THE SAME DAY FOR AN OIL CHANGE AND ASKED THEM TO READ THE CODES. THE CODES WERE RANDOM MULTIPLE CYLINDER MISFIRES AND THEY ADVISED ME THAT I MIGHT NEED TO HAVE SPARK PLUGS CHANGED AT NEXT OIL CHANGE, BUT IT SHOULD BE FINE TO D…
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ON DECEMBER 18, 2013, MY CHECK ENGINE LIGHT CAME ON. I TOOK THE VAN TO AN EXPRESS OIL CHANGE COMPANY THE SAME DAY FOR AN OIL CHANGE AND ASKED THEM TO READ THE CODES. THE CODES WERE RANDOM MULTIPLE CYLINDER MISFIRES AND THEY ADVISED ME THAT I MIGHT NEED TO HAVE SPARK PLUGS CHANGED AT NEXT OIL CHANGE, BUT IT SHOULD BE FINE TO DRIVE. THE MILEAGE ON THE VAN ON THAT DATE WAS 94,482 MILES. ON FEBRUARY 7TH, WHILE DRIVING TO WORK, MY CHECK ENGINE LIGHT BEGAN FLASHING AND THE VAN STARTED TO DRIVE VERY SLUGGISH. I CALLED THE MECHANIC I USE FOR REPAIRS AND THEY ADVISED ME NOT TO DRIVE IT OTHER THAN TO BRING THE VAN IN. UPON READING THE DIAGNOSTIC CODES, THEY STATED THAT THE SPARK PLUGS AND COIL PACKS NEEDED TO BE CHANGED. WHILE ATTEMPTING TO REMOVE THE OLD SPARK PLUGS AND COIL PACKS, THE COIL PACK AND SPARK PLUG IN CYLINDER 5 HAD COMPLETELY MELTED AND FUSED TO THE WALLS OF THE CYLINDER. MY MECHANIC DID SOME ONLINE RESEARCH AND SPOKE WITH A HONDA TECHNICIAN AND DETERMINED THAT THE ISSUE WAS DUE TO A FAULTY VCM AND THAT ONLY REPLACING THE HEAD WOULD NOT ELIMINATE THE PROBLEM. THE HONDA TECH ADVISED TO REPLACE THE ENGINE. THESE ARE THE EXACT SAME SYMPTOMS AS THE CLASS ACTION LAW SUIT WITH 2008 HONDA ODYSSEY ENGINES. *TR
NHTSA ODI #10629339
Mileage unknown · Jul 13, 2014
EngineSteeringStructure
LOSS OF POWER STEERING & DIFFICULTY TURNING STEERING WHEEL. PAINT ON TOP OF THE ROOF HAS BEGUN TO FADE. HAD TO REPLACE OIL PAN BECAUSE OF LUG NUT DAMAGE TO PAN. ACCORDING TO THE MECHANIC DAMAGED WAS CAUSED TO THE OIL PAN DUE TO THE QUALITY OF METAL WITHIN THE LUG NUT THAT IS OF HARSHER MATERIAL THAN THE OIL PAN. THEREFORE, I…
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LOSS OF POWER STEERING & DIFFICULTY TURNING STEERING WHEEL. PAINT ON TOP OF THE ROOF HAS BEGUN TO FADE. HAD TO REPLACE OIL PAN BECAUSE OF LUG NUT DAMAGE TO PAN. ACCORDING TO THE MECHANIC DAMAGED WAS CAUSED TO THE OIL PAN DUE TO THE QUALITY OF METAL WITHIN THE LUG NUT THAT IS OF HARSHER MATERIAL THAN THE OIL PAN. THEREFORE, IT CAUSED DAMAGE TO THE OIL PAN THAT REQUIRED US TO HAVE AN IMMEDIATE OIL PAN REPLACEMENT DURING A ROUTINE OIL CHANGE. *TR
NHTSA ODI #10610161
Official recalls
4Mar 14, 2014
American Honda Motor Co., Inc. (Honda) is recalling certain 2005-2010 Honda Odyssey vehicles manufactured June 23, 2004, through September 4, 2010. In the affected vehicles, the fuel pump strainer cover may deteriorate allowing fuel to leak out.
Consequence & remedy
Consequence: A fuel leak increases the risk of a fire.
Remedy: Parts to permanently repair the affected vehicles are not currently available. Honda will notify owners with an interim letter during May 2014. A second notice was mailed to owners October 6, 2014 when the remedy became available. Any vehicles that are currently leaking from the fuel pump cover will get a replacement, original cover. All vehicles, including those receiving the interim repair, will get an improved cover when they are available. Owners may contact Honda at 1-800-999-1009. The recall numbers associated with this campaign are JD9 (inspection and/or preliminary part replacement) and JE0 (final parts replacement).
Nov 1, 2013
American Honda Motor Company (Honda) is recalling certain model year 2007-2008 Honda Odyssey vehicles manufactured August 8, 2006, through September 8, 2008. Due to a combination of system components and software, the Vehicle Safety Assist System (VSA) may apply the brakes unexpectedly.
Consequence & remedy
Consequence: The vehicle may suddenly and unexpectedly brake hard, and without illuminating the brake lights, increasing the risk of a crash from behind.
Remedy: Parts to remedy these vehicles will not be available until the spring of 2014. Honda will send owners an interim letter notifying them of the issue and instruct them how to prevent unintended braking. A second notification will be sent when the parts become available. Interim notification was mailed in December 2013. The recall began on April 29, 2014. Owners may contact Honda at 1-800-999-1009 or visit their website at www.recalls.honda.com. Honda's recall number is JC5.
Oct 22, 2010
HONDA IS RECALLING CERTAIN MODEL YEAR 2005-2007 ODYSSEY AND ACURA RL VEHICLES. BRAKE FLUID CONTAINING POLYMERS IS USED THAT ACTS AS A LUBRICANT FOR CERTAIN BRAKE SYSTEM COMPONENTS. IF REPLACEMENT BRAKE FLUID IS USED THAT DOES NOT CONTAIN SUCH POLYMERS, OR THAT CONTAINS ONLY SMALL AMOUNTS, A PART OF THE RUBBER SEAL LOCATED AT THE REAR OF THE BRAKE MASTER CYLINDER MAY BECOME DRY, AND THE SEAL MAY CURL DURING MOVEMENT OF THE PISTON. IF THIS OCCURS, A SMALL AMOUNT OF BRAKE FLUID COULD SLOWLY LEAK FROM THE SEAL INTO THE BRAKE BOOSTER.
Consequence & remedy
Consequence: A LEAK OF BRAKE FLUID COULD LEAD TO A CHANGE IN BRAKE PEDAL FEEL AND OVERTIME A DEGRADATION IN BRAKING PERFORMANCE INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE BRAKE MASTER CYLINDER SEAL FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING DECEMBER 2010. OWNERS MAY CONTACT HONDA AT 1-800-999-1009.
Mar 16, 2010
HONDA HAS NOTIFIED NHTSA OF A DEFECT IN CERTAIN MODEL YEAR 2007 AND 2008 ODYSSEY AND ELEMENT PASSENGER VEHICLES MANUFACTURED BETWEEN JULY 28, 2006 AND AUGUST 21, 2008. AIR CAN ENTER THE VSA MODULAR PUMP DURING AN INITIAL SELF-CHECK PROCESS THAT OCCURS SHORTLY AFTER EACH TIME THE ENGINE IS STARTED. IT IS POSSIBLE FOR ENOUGH AIR TO ENTER THE SYSTEM TO RESULT IN A BRAKE PEDAL THAT FEELS SOFT OR LOWER TO THE FLOOR.
Consequence & remedy
Consequence: IF THE OWNER DOES NOT HAVE ANY BRAKE SERVICE OR MAINTENANCE PERFORMED OVER A PERIOD OF MONTHS OR YEARS, THE SYSTEM CAN CONTINUE TO ACCUMULATE ENOUGH AIR TO AFFECT BRAKING PERFORMANCE, INCREASING THE RISK OF A CRASH.
Remedy: HONDA WILL NOTIFY OWNER AND HONDA DEALERS WILL REPAIR THE VSA MODULATOR BY REMOVING ANY EXISTING AIR IN THE BRAKE SYSTEM THEN APPLY SEALANT AND CAPS TO PREVENT AIR FROM ENTERING THE BRAKE SYSTEM FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MAY 3, 2010. OWNERS MAY CONTACT HONDA AT 1-800-999-1009.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
3PE13024 · Inappropriate Autonomous Braking
Opened Jun 25, 2013 · Closed Nov 4, 2013
Status: closed (inferred from source dates) · Electronic Stability Control
In a letter dated October 31, 2013, Honda Motor Company (Honda) submitted a recall notice to NHTSA's Office of Defects Investigation describing a defect in the Vehicle Stability Assist (VSA) system in approximately 344,187 model year (MY) 2007 and 2008 Honda Odyssey vehicles produced from August 8, 2006 through September 8, 2008 (NHTSA Recall 13V-500, Honda Recall JC5).The report describes a defect condition caused by a combination of VSA system components and software that is unique to the MY 2007-2008 Honda Odyssey vehicles.The condition may result in unexpected brake application by the VSA system with no brake lamp illumination.The braking forces resulting from the condition can approach the maximum braking capability of the vehicle.Honda's investigation determined that (1) if the yaw rate sensor off-set exceeds a certain value, (2) the sensor calibration is not completed before the vehicle starts moving after start-up, and (3) the vehicle is driven in a specific manner; the VSA system may build hydraulic pressure in the brake system resulting in heavy, unexpected braking without the driver applying the brake pedal.Honda estimates that the parts necessary to correct this condition will not be available until March 2014.Pending part availability, Honda will send interim letters to affected owners including instructions to avoid the defect condition using a procedure to ensure proper VSA system calibration after each vehicle start-up, as well as instructions about what to do if unexpected brake application occurs while driving.Once the remedy parts are available, Honda will send a second notice advising owners to bring their vehicle to their dealer for installation of a redesigned yaw rate sensor.This investigation is closed.
EA09014 · Air In Brake System
Opened Oct 19, 2009 · Closed May 11, 2010
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module
By letter dated March 15, 2010, American Honda Motor Corp. (HMC) notified the National Highway Traffic Safety Administration (NHTSA) that it will conduct a safety recall (NHTSA Recall No. 10V-098) to address a defect in approximately 412,000 model year (MY) 2007 and 2008 Honda Odyssey and Element vehicles equipped with an ABS/VSA/TCS modulator. The recalled Odyssey vehicles were built from August 2006 August 2008.The recalled Element vehicles were built from July 2006 to July 2008. According to Honda, during an initial self-check process that occurs shortly after each engine ignition cycle, the self-diagnostic software for the VSA modulator allows a vacuum condition that can exist for several hours, allowing air to enter the VSA modulator pump.Over time, and thousands of engine ignition cycles, it is possible for enough air to enter the system to result in a brake pedal that feels soft or lower to the floor.If the customer does not have any brake service or maintenance performed over a period of months or years, the system can continue to accumulate enough air to affect braking performance.To correct the safety defect, Honda dealers will remove existing air in the brake system then apply sealant and caps to the VSA modulator to prevent air from entering the brake system, free of charge. The action taken by Honda is sufficient to resolve the issues raised by this investigation. The agency will continue to monitor this issue and reserves the right to take further action if warranted by the circumstances.Accordingly, this investigation is closed.
PE09024 · Air In Brake System
Opened May 13, 2009 · Closed Oct 19, 2009
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip
THE OFFICE OF DEFECTS INVESTIGATION (ODI) HAS RECEIVED 69 COMPLAINTS, AND HONDA HAS RECEIVED 613 COMPLAINTS AND FIELD REPORTS, ALLEGING LOW/SOFT/SPONGY BRAKE PEDAL TRAVEL IN MODEL YEAR (MY) 2006 THROUGH 2008 HONDA ODYSSEY MINIVANS.TWENTY-SIX ODI COMPLAINTS WERE ALSO REPORTED TO HONDA, RESULTING IN A TOTAL COMPLAINT COUNT OF 656.SOME COMPLAINTS ALLEGE THAT THE CONDITION RESULTED IN EXTENDED STOPPING DISTANCES, INCLUDING SOME REPORTS OF ROLLING PAST STOP SIGNS OR TRAFFIC LIGHTS.THERE ARE 14 ALLEGED CRASHES IN THE SUBJECT VEHICLE POPULATION RELATED TO LOW/SOFT PEDALS. IN RESPONSE TO ODI'S INFORMATION REQUEST FOR PRELIMINARY EVALUATION PE09-024, HONDA INDICATED THAT SMALL AMOUNTS OF AIR MAY ENTER THE BRAKE SYSTEM DURING INITIAL DIAGNOSTICS OF THE VEHICLE STABILITY ASSIST (VSA) MODULATOR WHILE THE PUMP IS BRIEFLY ACTUATED FOR SYSTEM DIAGNOSTICS AFTER THE ENGINE IS STARTED.THE AMOUNT OF AIR GRADUALLY INCREASES WITH EACH SUCCESSIVE ENGINE START CYCLE, RESULTING IN PROGRESSIVELY INCREASING BRAKE PEDAL STROKE.ACCORDING TO HONDA, THE CONDITION DOES NOT PRESENT A SIGNIFICANT RISK TO MOTOR VEHICLE SAFETY BECAUSE THE PEDAL STROKE GRADUALLY INCREASES, PROVIDING THE DRIVER WITH INFORMATION THAT THE BRAKE PEDAL HEIGHT IS CHANGING AND REQUIRES ATTENTION.HONDA HAS FURTHER INDICATED THAT THERE IS NO DETERIORATION OF BRAKING PERFORMANCE CAUSED BY THE SUBJECT CONDITION, EVEN THOUGH THE PEDAL HEIGHT AND FEEL ARE DIFFERENT, UNTIL PEDAL STROKE HAS REACHED THE END OF TRAVEL AND THE DRIVER CANNOT PRODUCE ANY ADDITIONAL BRAKE LINE PRESSURE.HONDA STATES THAT IT IS UNAWARE OF ANY VEHICLES THAT HAVE REACHED SUCH A CONDITION AND HONDA TESTING USING A LEAKING FIELD RETURN MODULATOR INDICATES THAT IT WOULD TAKE OVER A YEAR BEFORE THE PEDAL TRAVEL WOULD REACH ITS LIMIT DURING HARD STOPS WITH 200 N (45 LBF) OF PEDAL EFFORT - THE NOMINAL FORCE REQUIRED TO REACH ABS BRAKING MODE. ODI'S ANALYSIS OF WARRANTY DATA INDICATES THAT THE MY 2007-08 ODYSSEY VEHICLES HAVE EXPERIENCED THE ALLEGED DEFECT AT A RATE OF 0.67%.THE MY 2006 ODYSSEY VEHICLES HAVE EXPERIENCED THE ALLEGED DEFECT AT A SIGNIFICANTLY LOWER RATE (0.04%) THAN THE MY 2007-08 ODYSSEY.HONDA IMPLEMENTED A DESIGN CHANGE IN THE MY 2007 VEHICLES TO CHANGE THE VSA DIAGNOSTIC PROGRAM. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA09-014) FOR THE MY 2007-08 ODYSSEY VEHICLES TO CONTINUE TO INVESTIGATE THE SCOPE, FREQUENCY, AND SAFETY-RELATED CONSEQUENCES OF THE ALLEGED DEFECT.
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