What is the most common problem with the Acura MDX 2020?

The most commonly reported issue for the 2020 Acura MDX is transmission-related problems, particularly rough shifting and hesitation from the model’s 9-speed automatic transmission. This pattern appears across owner forums, reliability surveys, and recall data, though many MDX units perform reliably when properly maintained.

Overview of the main issues

The following problems have been most frequently cited by owners and monitored by consumer-reports and safety databases for the 2020 MDX. They are listed here to help prospective buyers and current owners identify potential trouble spots.

• Transmission problems, including rough shifting, hesitation, slipping, or in rare cases, transmission failure


• Infotainment and electronics issues, such as unresponsive touchscreens and intermittent Bluetooth or CarPlay/Android Auto connectivity


• Electrical and HVAC concerns, including warning lights, battery/charging issues, and occasional A/C compressor failures

These issues are not universal; many MDX owners report reliable operation. However, the patterns above have appeared most consistently in feedback and data tracked by consumer-safety sources.

Details by category

Transmission concerns

Owners frequently describe rough or delayed shifts, hesitation when accelerating, and, in some cases, a transmission that shudders or slips gears. Some problems prompted software calibration or updates under warranty, while a smaller number of cases required transmission replacement. The 9-speed automatic used in the 2020 MDX is a common focal point for these complaints, with reports varying by driving style, climate, and maintenance history.

Infotainment and electronics

Several owners report an unresponsive or glitchy infotainment system, intermittent Apple CarPlay or Android Auto connectivity, and touchscreen freezes. While not as widespread as transmission complaints, these issues have led to driver distraction concerns and multiple dealer-service visits for software or interface updates.

Other electrical and HVAC concerns

Other reported problems include warning lights coming on without clear mechanical cause, incidents of A/C compressor failure, and occasional battery or charging-related faults. These issues are less common than transmission and infotainment problems but are documented in owner reports and service histories.

What to do if you own a 2020 MDX

If you own a 2020 MDX or are considering one, use these practical steps to minimize risk and address issues promptly.

1. Check for recalls and open service campaigns for your vehicle using the NHTSA recall site or Acura’s owner portal with your VIN. If a recall affects your MDX, contact a dealer to schedule the required remedy.


2. If you notice transmission symptoms (rough shifting, hesitation, or unusual noises), schedule a diagnostic with an Acura dealer as soon as possible. Ask about any applicable transmission software updates or Technical Service Bulletins (TSBs) that may address the issue.


3. For infotainment problems, ensure the system software is up to date and reset connections as needed. If issues persist, request a formal diagnostic and note any patterns (time of day, temperature, connected devices).


4. Document all problems and maintenance history. If a problem seems safety- or reliability-related, pursue escalation through your dealer, warranty, or consumer-protection channels as appropriate.

Note: Not every MDX will experience these problems, and some issues may be resolved with software updates or routine maintenance. VIN-specific recall status is the most reliable guide to immediate remedies.

Bottom line and guidance

For the 2020 Acura MDX, transmission-related concerns are the most commonly reported problem, followed by infotainment and miscellaneous electrical issues. Prospective buyers should consider a thorough pre-purchase inspection and verify that any existing or past recalls have been addressed. Current owners should monitor for the noted symptoms and engage with a dealer promptly to minimize potential repair costs.

Summary: The 2020 MDX’s most frequent complaint centers on its 9-speed automatic transmission, with infotainment glitches and occasional electrical/HVAC faults trailing behind. Regular maintenance, timely recall checks, and proactive diagnostics are the best strategies for keeping the vehicle reliable.

Is 2020 a good year for an Acura MDX?

Acura MDX (2020+): The previous generation (2020) was at the end of its lifecycle, which means it was a very well-sorted and reliable vehicle. The new, fourth-generation MDX (2022+) is also performing very well, and its powertrain is a reliable V6 with a long track record.

What issues does the 2020 Acura MDX have?

Common problems reported for the 2020 Acura MDX include engine issues from a rod bearing defect (leading to an engine recall), transmission problems like jerky shifting and hesitation, and various suspension and steering issues such as worn shocks or a grinding sensation. Other reported issues include brake problems like warped rotors, a potential for acceleration/stalling issues, and a notable vibration or shudder at speeds between 35 and 40 mph.
 
Engine and transmission

• Rod bearing defect: A manufacturing defect can cause the rod bearing to wear prematurely, leading to engine damage, stalling, or failure. This is covered by a recall that includes the 2020 MDX. 
• Jerky transmission: Some owners have reported a jerky or confused transmission, especially with the nine-speed automatic. A software upgrade for the transmission has been noted as a fix. 
• Acceleration and stalling issues: There have been reports of sudden hesitation, stalling, or unintended deceleration. 
• Fluid leaks: Some models may experience leaks from the transmission main seal or engine. 

This video discusses common problems with the 3rd generation Acura MDX, including the rod bearing defect: 57sHOWSTUFFINMYCARWORKSYouTube · Apr 5, 2022
Suspension and steering

• Vibration: A common complaint is a shudder or vibration while driving at speeds between 35 and 40 mph. 
• Grinding steering linkage: Some drivers have felt a grinding sensation in the steering linkage, potentially caused by a lack of grease during manufacturing. 
• Worn parts: Other reports include issues with worn shocks or struts, and premature wheel bearing failure. 

Brakes

• Warped brake rotors: The front brake rotors can be prone to warping, especially after driving on winding roads or downhill. 
• Brake system issues: Problems have been reported with hydraulic master cylinders and general brake complaints. 

Other issues

• Battery drain: Some owners have reported that their car's battery can drain quickly after being shut off. 
• Air conditioning leaks: Refrigerant leaks have been cited as a problem. 
• Infotainment and electrical issues: Some owners of the related RDX experienced infotainment problems like blank screens or no sound, which were covered by an extended warranty for some model years. 
• Recalls: The vehicle has been subject to several recalls, including the one for the rod bearing defect. 

What is the biggest problem with Acura MDX?

2016-2020 has 3.5 rod bearing issue and the ZF9 is a completely garbage transmission. There are case of transmission need to be replace or re-program but it still jerks under low RPM shifting. 2010-2012 MDX is suffered from the 3.7 motor consume engine oil.

Are there any recalls on the 2020 Acura MDX?

The 2020 Acura MDX has several recalls, with the most significant ones involving the potential for a manufacturing defect that can cause the connecting rod bearing to wear and fail, leading to engine stalling or failure. Another recall addresses a lighting issue where moisture can cause the tailgate and exterior lights to become inoperative. Additionally, there are recalls related to potential problems with the front passenger seat weight sensor, which could affect airbag deployment, and the fuel pump.
 
This video explains the recent recall on Acura vehicles, including the MDX, due to a potential fault in the tailgate lid assembly: 1mHonda JonYouTube · Apr 24, 2025
Recalls affecting the 2020 Acura MDX

• Connecting rod bearing failure: A manufacturing defect can cause the connecting rod bearing to wear prematurely, leading to engine failure while driving, increasing the risk of a crash. 
  • Fix: Dealers will inspect the engine and perform repairs or replace the engine if necessary, free of charge. 
• Lighting failure: Moisture can get into the tailgate, causing a short circuit that makes rear and some other exterior/interior lights fail. 
  • Fix: Dealers will inspect and repair the issue by installing a fuse harness, replacing the light, and repairing the dust sealer. 
• Front passenger seat weight sensor: The sensor can crack and short circuit, which may prevent the front passenger airbag from deploying correctly. 
  • Fix: Dealers will replace the seat weight sensor. 
• Fuel pump: A recall was issued for a problem with the fuel system's delivery. 
  • Fix: Dealers will address the issue with the fuel pump. 
• Brake master cylinder separation: Some 2020 MDX models have a tie rod fastener that was improperly assembled, which could cause the brake master cylinder to separate from the brake booster. 
  • Fix: Dealers will fix the improperly assembled fastener. 

What to do if you are affected

1. Determine if your vehicle is affected: You can check if your specific vehicle is part of a recall by entering your Vehicle Identification Number (VIN) on the Acura recall lookup tool or the NHTSA website. 
2. Schedule a recall service: Contact an authorized Acura dealership to schedule a free repair. 
3. Contact Acura customer service: If you have questions or need assistance, you can contact Acura customer service for more information.