AutoDefect IQ

2009 Acura Mdx problems, complaints & recalls

Most-reported problem areas: Electrical System (8) · Power Train (7) · Engine (6)

🧭 Reliability snapshot

100 /100
✓ Typical or better for this model

Compared against other Acura Mdx model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 11 complaints 11 <25k 25–50k miles: 5 complaints 25–50k 50–75k miles: 9 complaints 50–75k 75–100k miles: 5 complaints 75–100k 100–125k miles: 3 complaints 100–125k 125–150k miles: 2 complaints 125–150k 150k+ miles: 2 complaints 150k+

37 NHTSA complaints that reported an odometer reading.

52
Complaints
0
Recalls
35
Service bulletins
4
Crashes reported
1
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (35)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Electrical System 2023-05-17 · B23040A · Service Bulletin/Repair Instructions

service news - the navigation clock and date are incorrect. this is due to a limited gps receiver capacity resulting in rollover of internal chip memory. the rollover occurred on january 1, 2022 at 12:00am local time

Electrical System 2022-01-25 · B21120A · Service Bulletin/Repair Instructions

servicenews article - the clock shows the incorrect time. this issue is due to a limited gps receiver capacity resulting in "rollover" of the internal chip memory; the "rollover" will occur on january 1, 2022, at 12:00am local time. as a result, the navigation date and time will be incorrect.

Engine And Engine Cooling:exhaust System:emission Control:catalytic Convertor 2020-06-03 · DOR-M3J3F-07 · Service Bulletin/Repair Instructions

these skus are exhaust manifolds with catalytic converters. the customer communication requested return of unsold inventory due to a loss of carb certification. these skus can no longer be sold as they do not meet carb standards, but parts on vehicles are not effected.

Equipment 2018-05-24 · BBOM05242018901 · Service Bulletin/Repair Instructions

dealer message - today, may 24, 2018, acura is announcing a warranty extension for 2002-17 acura vehicles. this warranty extension applies in cases where any of the replacement driver?s and/or front passenger?s airbag inflators have failed internally.

Equipment:electrical:navigational System(Global Positioning System) 2016-11-23 · B05-018 · Service Bulletin/Repair Instructions

service bulletin - navigation system information.

Suspension:rear 2016-11-21 · REIMBURSEMENT FO · Service Bulletin/Repair Instructions

"reimbursement form - on some 2007–13 mdx and 2010–12 zdx vehicles located in cold areas, the front and rear active dampers may leak. while leaks on the rear active suspension are visible, the front active dampers are mounted in an inverted position and the leak is not visible on the exterior of t

Showing the 6 most recent of 35 bulletins. Search all of them free at nhtsa.gov.

What owners report

2026-07-30 · Tires

“no major incidents, hits, or bumps no off roading only drove on city roads and highways. tread and all rubber on the outside half of the tire has completely seperated from the inner tire on a section.…”

2026-07-21 · Electrical System:instrument Panel:speedometer/Odometer · 140,223 mi

“odometer fraud. the contact purchased a 2009 acura mdx. it was discovered that there was a mileage discrepancy. the vehicle was a dealer sale. at the time of the purchase, the mileage was 117,500. at the time of the vehicle registration, it was discovered that the mileage was 140,223.…”

2025-01-30 · Air Bags

“on jan 21, 2025 the drivers side air bag deployed as i was driving. i did not hit or get hit by anyone or anything, i did not run over anything either the airbag deployed on drivers side from the front to the back of my acura mdx it was sudden it was random nd damn scary. i was injured from the impact of the air bag ... i have had my car appro…”

2024-06-24 · Power Train

“i just got this car in september and it is now throwing all kinds of different codes to the point where i can’t drive it sh-awd /check charging station / emission light etc …”

2022-07-06 · Power Train

“while driving vehicle, all power shut off after all lights(airbag, tire, engine, etc. came on the dashboard) not able to start vehicle now at all. has power but will not run, turn over, stay running, etc. has brand new battery so that’s not the problem no problems until today.…”

2022-04-26 · Suspension

“i was driving onto an exit ramp around 50 to 60 mph on rt 50 yo 495 south and vsa light appeared on dash. also steering felt extremely loose. no control to steer and could not accelerate either.…”

2022-02-09 · Air Bags

“vehicle produced a dash warning light for airbag/supplemental restraint system on january 29th or 30th, 2022. went away and back on again 3 times in the following week. no prior issues related to this. vehicle has never been in an accident. acura dealer scanned vehicle 2/5/2022 to find vehicle code 11-11, meaning bad airbag and possibly bad cabl…”

2021-08-02 · Electrical System

“the battery has been drained on three separate occasions this year (2021). i replaced the battery after the first occurrence. each time i have had to use a battery jump to restart the vehicle which sufficed to get it operating and return home. on the last occasion, the car started to display dash board warning messages before arriving at home af…”

2021-07-01 · Power Train · 150,061 mi

“the contact owns a 2009 acura mdx. the contact stated while driving at an undisclosed speed and approaching a stop sign, the accelerator pedal was depressed however, the vehicle failed to respond. the contact shifted the vehicle to neutral and back to drive and the vehicle responded slowly. the failure recurred several times. the vehicle was not d…”

2021-02-09 · Exterior Lighting · 50,000 mi

“low beam headlight is extremely dim, can barely see at night. changing the light bulb does not solve. headlight cover is not foggy or cloudy, it is clear. suspecting internal reflector issue as acura has done recalls on other models for the same issue but not on rdx.…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Acura Mdx years