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I am writing to formally escalate an unresolved matter regarding my 2026 Acura MDX Technology, purchased on XXX, from Piazza Acura of [XXX]. As a loyal Acura customer of over nine years and currently on my fourth lease, this experience is both unexpected and unacceptable.  Since shortly after purchase, the vehicle has exhibited persistent and unresolved performance issues, most notably harsh and inconsistent gear shifting and a pronounced vibration in the accelerator pedal. Despite multiple service visits and significant time invested, these concerns remain unresolved. I have repeatedly been advised that these conditions are ânormal characteristicsâ of the vehicle due to adaptive transmission behaviorâan explanation that is inconsistent with my prior ownership experience across multiple MDX models (2017, 2020, and 2023) and does not align with reasonable expectations for a vehicle in this class.  To be clear, the vehicle in its current condition fails to meet reasonable standards of quality, reliability, and merchantability for a $62,000+ luxury vehicle. Additionally, the vehicle did not exhibit these issues during pre-purchase test drives, indicating these conditions are neither inherent nor acceptable.  The service history is summarized below:  April 18, 2026 â Piazza Acura of Ardmore Issues: Installation of a sport heated steering wheel (contractually owed), slow acceleration, harsh shifting, vibration in the accelerator pedal, GPS inoperable Service time: 1 day  April 24, 2026 â Piazza Acura of Ardmore Issues: Installation of the correct heated steering wheel, continued transmission and vibration in the accelerator pedal concerns Service time: 6 days  May 11, 2026 â Elite Acura (NJ) Issue: Accelerator pedal vibration Service time: ~1.5 hours  June 15, 2026 â Piazza Acura of Ardmore Issues: Ongoing vibration in the accelerator pedal, Blind Spot Information System problem warning Service time: 2+ days (ongoing)   INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ACURA MDX 2026 POWER TRAIN

Google on-board gives a persistent error that the MMI and car driving technology firmware cannot be completed. Service center says itâs known and they canât do anything. The car is supposed to have voice control over vehicle temperature and functionality â it does not. It frequently will not automatically connect to a wireless Apple Car Play or Google Auto connection. Firmware is also supposed to communicate w car speed, etc. to make Acura Assist driving more safe.

ACURA MDX 2026 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

2026 Acura MDX with Acura Factory A Spec issued plastic floor mats. Accelerator pedal gets stuck behind the floor mat resulting in uncontrolled wide open throttle. Had to physically put my foot behind the pedal and pull pedal away from floor.   Afterwards tried a few times to repeat the issue, 3/5 times was able to reproduce stuck pedal.  Top of the drivers plastic floor mats, right side, has a U cut out for the accelerator pedal. This needs to be trimmed another 1/2â or more to stop the issue.  Could result in severe or fatal consequences.

ACURA MDX 2026 VEHICLE SPEED CONTROL

2026 Acura MDX with 3.5 L V6 (J35Y-series) experienced connecting-rod bearing failure and total engine loss at 1,920 miles. Vehicle currently at dealer. Appears identical to failures under NHTSA PE25-008 (2016-2020 models)

ACURA MDX 2026 ENGINE

I have experienced the vehicle not unlocking when the key fob is near(in my pocket) the vehicle and my hand is touching the door handles. The vehicle is designed to unlock when the key fob is in close proximity while hands are on the handle. This is a safety/security concern because in an emergency, the vehicle does not function as it is intended to.

ACURA MDX 2026 UNKNOWN OR OTHER

2026 Acura MDX AWD — vehicle data sourced from FuelEconomy.gov.

The 2026 Acura MDX AWD offers a powerful and efficient hybrid powertrain, delivering an impressive 355 horsepower. With its all-wheel-drive capability and a 10-speed automatic transmission, this small sport utility vehicle is designed for confident performance and a combined MPG of 21.

	2017	2018	2019	2020	2022	2023	2026
Price	—	—	—	—	—	$49,700	—
Engine Capacity	3.5 litre3471 cc(211.813 cu in)	3.5 litre3471 cc(211.813 cu in)	3.5L	3.5L	3.5L	3.5L	3.5L
Fuel Type	Petrol	Petrol	Premium	Premium Gasoline	Premium Gasoline	Premium	Premium
Transmission	9 speed automatic	9 speed automatic	Automatic (S9)	Automatic (S9)	Automatic (S10)	Automatic (S10)	10 speed automatic
Body Type	4/5 Seater Suv/Sports Utility Vehicle	4/5 Seater Suv/Sports Utility Vehicle	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD	SUV

Acura MDX AWD (2026) Specifications