2006 Acura mdx with 34000 miles, start to have intermittent transmission "shudder" around 40mph, bring to thomas Acura dealer to check for two times and was told to change the converter because of "normal"stress of the transmission. In addition, dealer suggest to change transmission oil but I just did it 6 months ago. *tr
2006 Acura MDX powertrain problems
severe 37 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
37
Recalls
0
Avg fix
$2,500
4crashes
When does it fail?
Of the 37 powertrain complaints filed for the 2006 Acura MDX, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Powertrain accounts for 43% of every owner complaint on file for this vehicle — the dominant problem area across 4 categories tracked.
Owners have filed 37 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
The failure pattern owners describe
Buyer takeaway: A used 2006 Acura MDX is a significant risk. Owners report widespread transmission shuddering at 30–50 MPH that returns repeatedly despite torque converter and transmission replacements, plus an ignition interlock defect allowing vehicles to roll away when parked. Repair costs run $2,600–$6,000, often falling on the owner once warranty expires, and dealers historically denied these were systemic problems.
Owners of 2006 Acura MDX report two distinct powertrain problems. The first is a transmission judder and shuddering occurring most commonly between 30–50 MPH during acceleration. Owners describe vibration, grinding, and clunking sounds from the drivetrain. Many experienced this after Honda's own transmission software recall update. Owners report that torque converter replacement is the typical dealer response, yet the problem often returns within months or miles. Some have required multiple torque converter replacements, full transmission replacements, and even secondary damage to engine mounts and axle shafts from the vibration. A handful report that full transmission replacement has been needed more than once, with failure recurring within 50,000 miles of the repair.
The second issue is an ignition interlock failure allowing the vehicle to be shifted out of Park or have the key removed while in Neutral, Drive, or Reverse, causing the vehicle to roll. Multiple owners describe vehicles rolling away unintended in parking lots and garages, some resulting in collisions with other vehicles or barriers. A transmission software update recall (campaign 12V573000) was issued but reportedly did not resolve the rolling problem for at least one owner who had it performed.
Owners express frustration that dealers initially deny these are widespread issues, and costs for repairs—typically $2,600–$6,000+ for torque converter or transmission work—fall on the owner once the warranty expires, which often happens before the first failure occurs.
Same Acura MDX powertrain reports on nearby years: 2005
Failure modes owners describe
Transmission shudder and judder at 30–50 MPH
Vibration, grinding, clunking, and shuddering from the transmission, typically during acceleration between 30 and 50 MPH. Occurs intermittently or nearly every drive. Owners report the problem recurs after dealer repairs.
When: Typically starts between 34,000 and 116,000 miles; often within first year or after transmission software recall update
Symptoms owners cite: Shuddering and vibration at 30–50 MPH during acceleration; Grinding and clunking sounds from drivetrain; Rumbling from drivetrain; Car jerking heavily in first gear at low RPM; Loss of power during shuddering episodes; Whining noise (reported in early instances); Downshifting without notice under acceleration
Codes mentioned: P0706 (Transmission Range Switch Circuit)
Repairs/costs cited: Dealers typically replace torque converter (reported cost $2,600–$5,000+). Some owners required full transmission replacement. Multiple owners report torque converter replacement followed by return of symptoms within weeks or months and 10,000 miles. One owner reports three transmission replacements by 86,000 miles. Another required transmission replacement at 120,000 miles (57,464 miles on replacement unit). One owner reports secondary damage to engine mounts and right front axle shaft from vibration.
Recalls/TSBs owners mention: Transmission software recall update (campaign number not specified in early complaints; 12V573000 electrical system recall mentioned in one narrative but did not resolve rolling issue). Acura customer care informed one owner that a remanufactured transmission installed in 2008 was 'not an authentic Acura part.' Dealers have offered partial cost-sharing (50%) or declined to cover repair costs once warranty expires. No technical service bulletins specifically mentioned.
Ignition interlock failure—key removal without Park engagement
Key can be removed from ignition while vehicle is in Neutral, Drive, or Reverse, without first shifting to Park. Vehicle does not prevent key removal. In multiple incidents, vehicles rolled away unattended in parking lots and garages after keys were removed.
When: Reported at 100,200 miles and 200,000 miles; also occurred after 2015 interlock recall service
Symptoms owners cite: Key removable from ignition in any gear (Neutral, Drive, or Reverse); Vehicle rolls away freely as if in Neutral when parked in Drive or Reverse with key removed; Ratchet-like sound heard when vehicle does not engage Park; Vehicle does not consistently stay in Park after shifting; intermittent engagement failure
Repairs/costs cited: One dealer diagnosed and recommended replacement of 'ignition key converter.' Dealers performed PCM reprogramming and update. One owner reported attempting interlock recall repair (12V573000) in March 2015, but friend was able to recreate the rolling problem the next day by starting car in Neutral and removing key. No documented permanent fix noted in narratives.
Recalls/TSBs owners mention: Recall campaign 12V573000 (Electrical System) addressed interlock defect; at least one owner had this performed but problem persisted. Manufacturer told one owner 'nothing they could do' after diagnostic was performed and technician could not find cause. Acura customer relations refused to assist with damage claims from resulting accidents.
Synthesized from 37 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 7 most recent
Acura mdx transmission failure / catalytic converter. *tr
1. Normal driving my 2006 Acura mdx (original owner 55000 miles) 2. Acura told me the torque converter is bad 3. They will pay for this 2600.00 repair, but the problem is known to come back. *tr
Acura mdx 2006 at 70,000 miles began making a grinding noise, sporadically at first, when car was running between 30-35 miles per hour. RPM's also jumped when grinding occurred. Took it to an independent transmission shop and was diagnosed as needing a new transmission. Took it to an Acura dealer for a second opinion. They diagnosed it as needing a new torque converter. Now in negotiations…
I currently own a 2006 Acura mdx. The vehicle currently has 86,000 miles and has been serviced exclusively by Acura. All recommended services have been performed by Acura. The car was just returned to me after having its 3rd transmission replaced. This time the car broke down during an acceleration onto a major highway almost causing a traffic incident. The transmission has been identified as a…
Torque convertor failed at 81,000. Replaced at dealership, very expensive to replace and no guarantee it won't cause problems to transmission or transmission will need to be replaced. *tr
Vehicle transmission can not shift while driving on the road .no reverse and forward .the vehicle have 76000 miles on it.
Had powertrain trouble with your 2006 Acura MDX?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2006 Acura MDX?
It's a meaningful issue. 37 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 34 complaints that reported odometer mileage, most powertrain failures cluster between 58,000 and 86,172 miles, with the median around 70,000. A quarter of owners report trouble before 58,000; a quarter make it past 86,172. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Acura/MDX.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.