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2009 Acura Mdx

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2009 Acura Mdx do not stand out strongly from the model-year median of 101.5.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

37 reports with mileage · 15 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

4 crash reports1 fire reports6 injury reports

What owners actually said

52 reports
124,900 miles · Feb 26, 2015
Engine

VEHICLE WAS RUNNING NORMAL. AFTER SITTING OUTSIDE ON A VERY COLD DAY IN WISCONSIN, THE CAR WOULD NOT START. IT WAS TOWED TO BERGSTROM ACURA IN APPLETON, WI WHERE A NEW STARTER WAS INSTALLED AND IT STARTED. THERE WAS AN IMMEDIATE LOUD KNOCKING NOISE. INSPECTION INDICATED A LARGE PIECE OF THE #5 PISTON BROKE OFF DUE TO A LATENT …

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VEHICLE WAS RUNNING NORMAL. AFTER SITTING OUTSIDE ON A VERY COLD DAY IN WISCONSIN, THE CAR WOULD NOT START. IT WAS TOWED TO BERGSTROM ACURA IN APPLETON, WI WHERE A NEW STARTER WAS INSTALLED AND IT STARTED. THERE WAS AN IMMEDIATE LOUD KNOCKING NOISE. INSPECTION INDICATED A LARGE PIECE OF THE #5 PISTON BROKE OFF DUE TO A LATENT MANUFACTURING DEFECT AND DESTROYED THE ENGINE. ALTHOUGH THIS FAILURE OCCURRED IN THE SHOP, THE PISTON COULD HAVE FAILED ON THE ROAD WHICH COULD HAVE SEIZED THE ENGINE AND CAUSED AN ACCIDENT. AN IDENTICAL FAILURE WAS ALSO FOUND IN CANADA ON VIN [XXX] THAT OCCURRED JAN 12, 2015. ACURA HAS BEEN CONTACTED AND REFUSED TO CONSIDER THEM RELATED AND HAS NOT LOGGED THEM AS POTENTIAL SAFETY DEFECTS. PHOTOS OF THE FAILED PARTS ARE AVAILABLE UPON REQUEST. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10690992

33,000 miles · Feb 7, 2015
Wheels

I PURCHASED AN ACURA CERTIFIED 2009 MDX BASE WITH BRIDGESTONE DUELER H/L 400 TIRES ON IT. THE QUALITY OF BRIDGESTONE TIRES WERE UNACCEPTABLE. THESE TIRES HAD NO GRIP ON WET ROAD AND ROAD COVERED WITH LIGHT SNOW. THERE WERE MULTIPLE CASES WHEN MY ALL WHEEL DRIVE SKIDDED ON THE HIGHWAY DURING LANE CHANGE. DUE TO SAFETY CONCERNS…

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I PURCHASED AN ACURA CERTIFIED 2009 MDX BASE WITH BRIDGESTONE DUELER H/L 400 TIRES ON IT. THE QUALITY OF BRIDGESTONE TIRES WERE UNACCEPTABLE. THESE TIRES HAD NO GRIP ON WET ROAD AND ROAD COVERED WITH LIGHT SNOW. THERE WERE MULTIPLE CASES WHEN MY ALL WHEEL DRIVE SKIDDED ON THE HIGHWAY DURING LANE CHANGE. DUE TO SAFETY CONCERNS, I HAD TO REPLACE ALL FOUR TIRES WITHIN A FEW MONTHS OF PURCHASING THE VEHICLE. ACURA SHOULD NOT USE BRIDGESTONE TIRES IN ITS VEHICLES. ALSO, FIRESTONE/BRIDGESTONE SHOULD RECALL THESE TIRES AND REFUND MONEY FOR THE REPLACEMENT COST OF MY TIRES. WILL APPRECIATE IF YOU PLEASE LOOK INTO THIS ISSUE. *JS

NHTSA ODI #10681926

21,000 miles · Sep 5, 2014
Air Bags

I HAVE A RECURRING PROBLEM WITH MY AIR BAG SYSTEM ON MY 2009 ACURA MDX (VEHICLE NO [XXX]) WHICH MY LOCAL DEALER HAS BEEN UNABLE TO RESOLVE. I FIRST NOTICED THE PROBLEM WHEN THE VEHICLE HAD APPROXIMATELY 21,000 MILES. I CONTACTED THE SERVICE DEPARTMENT AT KEARNY MESA ACURA AND INFORMED THEM THE CHECK AIR BAG LIGHT WAS COMING …

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I HAVE A RECURRING PROBLEM WITH MY AIR BAG SYSTEM ON MY 2009 ACURA MDX (VEHICLE NO [XXX]) WHICH MY LOCAL DEALER HAS BEEN UNABLE TO RESOLVE. I FIRST NOTICED THE PROBLEM WHEN THE VEHICLE HAD APPROXIMATELY 21,000 MILES. I CONTACTED THE SERVICE DEPARTMENT AT KEARNY MESA ACURA AND INFORMED THEM THE CHECK AIR BAG LIGHT WAS COMING ON. KEARNY MESA ACURA ASKED IF IT WAS ON ALL OF THE TIME. I EXPLAINED THAT THE WARNING LIGHT WAS ON INTERMITTENTLY (SOME DAYS IT WAS ON AND SOME DAYS IT WAS OFF). THEY SAID NOT TO BRING THE CAR IN UNTIL IT IS JUST ON ALL OF THE TIME (EVERYDAY). SEVERAL MONTHS LATER IT HAD DEGRADED TO THE POINT WHERE THE LIGHT WAS ON EVERY DAY, SO I BROUGHT THE VEHICLE IN FOR SERVICE. THEY TESTED THE VEHICLE AND REPLACED APART ON THE DRIVER??S SIDE AIRBAG (PART NO 78055-STX-A10). THIS WAS AT 23,978 MILES (ON 11/9/2010). WITHIN 6 MONTHS TO A YEAR, THE LIGHT CAME ON AGAIN. AGAIN, I WAS INFORMED TO WAIT UNTIL THE LIGHT STAYED ON CONSISTENTLY (EVERYDAY). ONCE THAT OCCURRED, I BROUGHT THE CAR IN AGAIN. KEARNY MESA AGAIN TESTED THE VEHICLE AND REPLACED THE SAME PART (PART NO 78055-STX-A10). THIS WAS AT 46,511 MILES (ON 8/2/2012). ONCE AGAIN, WITHIN ABOUT 6 MONTHS TO A YEAR, THE LIGHT CAME ON. TO THIS DAY, THE PROBLEM HAS NOT BEEN RESOLVED AND ACURA WANTS TO CHARGE ME $130 DIAGNOSIS PLUS REPAIRS. I FEEL THIS IS NOT ACCEPTABLE ON SEVERAL LEVELS. FIRST OF ALL, THIS IS A RECURRING PROBLEM WHICH BEGAN WHILE THE CAR WAS UNDER WARRANTY (AND VERY EARLY IN THE LIFE OF THE VEHICLE). SECONDLY, IT APPEARS KEARNY MESA ACURA IS NOT PROPERLY DIAGNOSING/REPAIRING THE PROBLEM. IT IS POSSIBLE THAT ANOTHER COMPONENT IS CAUSING THE FAILURE OF THE PART WHICH IS BEING REPEATEDLY REPLACED (POSSIBLY WIRING ETC). I'VE ALSO TRIED WRITING TO ACURA DIRECTLY - PRESIDENT OF HONDA NORTH AMERICA. THEY SAID I WOULD JUST HAVE TO PAY FOR ANY DIAGNOSIS OR REPAIRS MYSELF. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10631032

68,735 miles · Aug 21, 2014
Power Train

I TOOK MY 2009 MDX INTO ACURA DEALER FOR SHUDDER AT 35-45 MPH AT 68K. SERVICE TECH WROTE UP REPAIR ORDER AS PCM UPDATE. THEY DID NOT DOCUMENT THE SHUDDER COMPLAINT. EVEN THO I DROVE WITH SERVICE TECH AND THEN HE DROVE ALSO, VERIFYING SHUDDER. I HAD TO GO BACK 2ND TIME AS PCM DIDN'T TAKE ACCORDING TO DEALER AND THAT'S WHY SHUD…

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I TOOK MY 2009 MDX INTO ACURA DEALER FOR SHUDDER AT 35-45 MPH AT 68K. SERVICE TECH WROTE UP REPAIR ORDER AS PCM UPDATE. THEY DID NOT DOCUMENT THE SHUDDER COMPLAINT. EVEN THO I DROVE WITH SERVICE TECH AND THEN HE DROVE ALSO, VERIFYING SHUDDER. I HAD TO GO BACK 2ND TIME AS PCM DIDN'T TAKE ACCORDING TO DEALER AND THAT'S WHY SHUDDERING CONTINUED AFTER 1ST PCM UPDATE. NOW AT 107K, SHUDDER IS BACK. MDX OUT OF EXTENDED WARRANTY BY 2000 MILES AND ACURA/HONDA REFUSES GOODWILL REPAIR. THIS IS MY SECOND MDX. THE TORQUE CONVERTER NEEDED REPLACED IN MY 2003 MDX. ACURA ASSURED ME WHEN I PURCHASED THE 2009 THAT THIS KNOWN PROBLEM WAS RESOLVED. OBVIOUSLY THE TORQUE CONVERTER/TRANSMISSION CONTINUES TO BE FAULTY. I'M WONDERING IF THE PCM UPDATE IS DISGUISING THE PROBLEM PUSHING THE MDX PAST THE MILEAGE WARRANTY. *TR

NHTSA ODI #10627116

60,000 miles · Jul 7, 2014
Equipment

TL* THE CONTACT OWNS A 2009 ACURA MDX. THE CONTACT STATED THAT WHILE STARTING THE IGNITION, THE AIR CONDITIONER WAS ACTIVATED AND A LOUD ABNORMAL NOISE EMITTED FROM INSIDE OF THE VEHICLE. THE FAILURE ONLY OCCURRED DURING THE INITIAL START UP. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER, WHO INFORMED THAT THE MALFUNCTION WAS CO…

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TL* THE CONTACT OWNS A 2009 ACURA MDX. THE CONTACT STATED THAT WHILE STARTING THE IGNITION, THE AIR CONDITIONER WAS ACTIVATED AND A LOUD ABNORMAL NOISE EMITTED FROM INSIDE OF THE VEHICLE. THE FAILURE ONLY OCCURRED DURING THE INITIAL START UP. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER, WHO INFORMED THAT THE MALFUNCTION WAS CONTRIBUTED TO THE FAULTY AIR CONDITIONER SUPPORT BOLTS. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000.

NHTSA ODI #10608668

55,000 miles · May 30, 2014
Vehicle Speed ControlCrash

TL* THE CONTACT OWNS A 2009 ACURA MDX. THE CONTACT STATED THAT WHILE REVERSING, THE BRAKE PEDAL WAS DEPRESSED AS THE VEHICLE SUDDENLY ACCELERATED CAUSING THE CONTACT TO CRASH INTO A POLE. THE CONTACT PLACED THE VEHICLE INTO DRIVE AND THE VEHICLE PROCEEDED TO ACCELERATE, AND THEN CRASHED INTO A BUILDING. A POLICE REPORT WAS FILED…

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TL* THE CONTACT OWNS A 2009 ACURA MDX. THE CONTACT STATED THAT WHILE REVERSING, THE BRAKE PEDAL WAS DEPRESSED AS THE VEHICLE SUDDENLY ACCELERATED CAUSING THE CONTACT TO CRASH INTO A POLE. THE CONTACT PLACED THE VEHICLE INTO DRIVE AND THE VEHICLE PROCEEDED TO ACCELERATE, AND THEN CRASHED INTO A BUILDING. A POLICE REPORT WAS FILED AND THERE WERE NO INJURIES REPORTED. THE MANUFACTURER INVESTIGATED THE ACCELERATION AND BRAKING SYSTEM AND CONCLUDED THAT THE SUDDEN ACCELERATION WAS NOT CAUSED BY A MANUFACTURING DEFECT. THE FAILURE MILEAGE WAS 55,000 AND THE CURRENT MILEAGE WAS 56,000.

NHTSA ODI #10595074

45,000 miles · Nov 26, 2013
Electrical SystemEngine

APPROXIMATELY 3 MONTHS AGO I WENT TO START THE MEDIC AND IT WOULD NOT START. NO LIGHTS OR ANY OTHER ACCESSORIES WERE LEFT ON. THE CAR WAS JUMPED AND STARTED. BEING THE CAR WAS 4 YEARS OLD AND I HAD REVIEWS OF BATTERY PROBLEMS IN THE MEDIC, I HAD THE BATTERY REPLACED. ABOUT TWO WEEKS LATER IT WOULD NOT START AGAIN. IT WAS JU…

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APPROXIMATELY 3 MONTHS AGO I WENT TO START THE MEDIC AND IT WOULD NOT START. NO LIGHTS OR ANY OTHER ACCESSORIES WERE LEFT ON. THE CAR WAS JUMPED AND STARTED. BEING THE CAR WAS 4 YEARS OLD AND I HAD REVIEWS OF BATTERY PROBLEMS IN THE MEDIC, I HAD THE BATTERY REPLACED. ABOUT TWO WEEKS LATER IT WOULD NOT START AGAIN. IT WAS JUMPED AGAIN AND TAKEN TO AN AUTO REPAIR SHOP TO BE TESTED. THE REPAIR SHOP SAID THE BATTERY WAS WEAK, SO IT WAS REPLACED AGAIN. IT'S BEEN ABOUT 2 MONTHS NOW AND TODAY WHEN I WENT TO START IT, THE BATTERY WAS DEAD AGAIN. THREE BATTERIES DO NOT GO BAD THAT QUICKLY, THERE IS A PROBLEM WITH THE ELECTRICAL SYSTEM IN THIS VEHICLE. I HAVE NOTICED OTHER COMPLAINTS WITH THIS SAME ISSUE ON THIS WEB SITE. *TR

NHTSA ODI #10553906

34,095 miles · Oct 15, 2012
EnginePower Train

I BROUGHT THE CAR INTO THE DEALER BECAUSE I WAS HAVING TRANSMISSION PROBLEMS OR POWER STEERING PROBLEMS. I INDICATED THAT THE CAR MAKES A WHINE AT ABOUT 1500 RPM. THE DEALER CHOSE TO TREAT IT AS A POWER STEERING PROBLEM. THE POWER STEERING PUMP WAS REPLACED. THERE WAS STILL A WHINE ALTHOUGH LESS. THE CAR RPM HANGS UP ON DECELERA…

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I BROUGHT THE CAR INTO THE DEALER BECAUSE I WAS HAVING TRANSMISSION PROBLEMS OR POWER STEERING PROBLEMS. I INDICATED THAT THE CAR MAKES A WHINE AT ABOUT 1500 RPM. THE DEALER CHOSE TO TREAT IT AS A POWER STEERING PROBLEM. THE POWER STEERING PUMP WAS REPLACED. THERE WAS STILL A WHINE ALTHOUGH LESS. THE CAR RPM HANGS UP ON DECELERATION TO A STOP. SOME TIMES WHEN GOING DOWN HILL THE CAR DOES NOT UPSHIFT UNTIL THE CAR IS ACCELERATED EVEN THOUGH THE ROAD SLOPE IS ZERO. THE DEALER NEVER INFORMED ME WHEN I BROUGHT THE VEHICLE IN FOR THE ORIGINAL CONCERN THAT THERE WERE SOME PROBLEMS WITH THE TRANSMISSION OR TORQUE CONVERTER HANGING UP. *TR

NHTSA ODI #10480630

24,600 miles · Apr 11, 2012
SeatsInjury

TL* THE CONTACT OWNS A 2009 ACURA MDX. THE CONTACT STATED THAT THE HEADREST WOULD PUSH HER HEAD FORWARD, CAUSING HER NECK AND BACK PAIN. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADVISED THAT THEY WERE UNABLE TO ALTER THE VEHICLE DESIGN. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO DID NOT OFFER ANY ASSISTANCE. THE VEHICLE W…

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TL* THE CONTACT OWNS A 2009 ACURA MDX. THE CONTACT STATED THAT THE HEADREST WOULD PUSH HER HEAD FORWARD, CAUSING HER NECK AND BACK PAIN. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADVISED THAT THEY WERE UNABLE TO ALTER THE VEHICLE DESIGN. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO DID NOT OFFER ANY ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 24,600. UPDATED 5/7/12 *CN THE CONSUMER HAS SINCE TRADED THE VEHICLE. UPDATED 05/23/12.

NHTSA ODI #10454907

Mileage unknown · Jan 11, 2012
Engine And Engine Cooling

THIS VEHICLE IS ONLY 2 YEARS AND 2 MONTHS OLD (BOUGHT IN NOV. 2009), YET THE BATTERY KEEPS FAILING (AND THERE WERE NO LIGHTS LEFT ON AFTER THE ENGINE WAS SHUT OFF, AND NOTHING DONE OUT OF THE ORDINARY WITH THE CAR ON THE 3 OCCASIONS THIS WEEK THAT THE "SHUT OFF" OCCURRED). WE'VE HAD TO CALL ACURA ROADSIDE ASSISTANCE 3 TIMES THI…

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THIS VEHICLE IS ONLY 2 YEARS AND 2 MONTHS OLD (BOUGHT IN NOV. 2009), YET THE BATTERY KEEPS FAILING (AND THERE WERE NO LIGHTS LEFT ON AFTER THE ENGINE WAS SHUT OFF, AND NOTHING DONE OUT OF THE ORDINARY WITH THE CAR ON THE 3 OCCASIONS THIS WEEK THAT THE "SHUT OFF" OCCURRED). WE'VE HAD TO CALL ACURA ROADSIDE ASSISTANCE 3 TIMES THIS WEEK (WEEK OF JAN. 9TH, 2012). TODAY IS JAN. 10, 2012 AND WE HAD TO BE BOOSTED THIS MORNING AGAIN. WE EVENTUALLY TOOK IT IN TO THE MANHATTAN ACURA DEALERSHIP TODAY (1/10/12) AND WAS TOLD THAT THE BATTERY WAS, INDEED, DEFECTIVE. WE WERE ALSO INFORMED THAT OTHERS HAVE COME IN TO THAT LOCATION WITH THE SAME ISSUE (ALL ACURA OWNERS). PERHAPS, THIS SHOULD BE OFFICIALLY NOTED JUST IN CASE THERE ARE PLENTY MORE WITH THIS EXPERIENCE. *TR

NHTSA ODI #10443511

Official recalls

0

No recalls in this snapshot.

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

0

No exact-year investigations in this snapshot.