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Total NHTSA Complaints
87
Owner filings recorded
#1 Reported Problem
Engine & Cooling
46 reports (52.9%)
Crash Incident Reports
2
Filings citing a crash
Fire & Injury Reports
2
0 fire • 2 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 87 official NHTSA owner defect complaints for the 2025 Acura MDX. Engine & Cooling issues are the most frequently reported category, appearing in 46 complaints (52.9% of submitted records). Among these NHTSA complaint records, 2 filings cite a crash, 2 report one or more injuries.

Methodology Notice: Consumer complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Filings are not normalized for sales volume or vehicle mileage and do not constitute an audited component failure rate.
Incident & Severity Profile
  • • Total Owner Reports: 87 complaints submitted under federal penalty.
  • • Primary Subsystem: Engine & Cooling accounts for 52.9% of submissions (46 reports).
  • • Secondary Systems: Electrical System (37), Fuel & Propulsion System (12).
  • • Crash Incidents: 2 filings cite an impact or collision.
  • • Thermal Incidents: 0 filings cite smoke or fire.
  • • Reported Casualties: 2 injury filings • 0 fatality filings.
Category Distribution

Reported Defect Categories for 2025 Acura MDX

Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records

Engine & Cooling
46
52.9%
Electrical System
37
42.5%
Fuel & Propulsion System
12
13.8%
Driver Assistance & Safety Tech
8
9.2%
Brakes & Traction Control
4
4.6%
#1 52.9% SHARE

Engine & Cooling

46 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#2 42.5% SHARE

Electrical System

37 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#3 13.8% SHARE

Fuel & Propulsion System

12 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#4 9.2% SHARE

Driver Assistance & Safety Tech

8 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 2 Crash 🩹 4 Injury
⚠️ 1 Associated Recall Campaign
Federal Oversight

Official NHTSA Defect Investigations (1)

Formal engineering analyses and preliminary evaluations opened by the NHTSA Office of Defects Investigation

ODI Action #EA25004 OPEN Engineering Analysis (EA)
Opened: 2025-03-26 • Active
Subject / Subsystem
No Restart After Auto Start/Stop Engages
Affected Component
ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR
Recall Linkage
No direct recall linkage
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Consumer Filings

Recent NHTSA Owner Reports for 2025 Acura MDX

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Engine & Cooling ODI #11758463
Filed: 08/21/2026
Defect Report

"2025 Acura MDX – Auto Idle Stop Failure to Restart When my 2025 Acura MDX is stopped at a traffic light and the Auto Idle Stop system activates, the engine shuts off but on multiple occasions has failed to restart when traffic begins moving. The vehicle becomes immobilized in an active traffic..."

Electrical System ODI #11758335
Filed: 08/20/2026
Defect Report

"The contact owns a 2025 Acura MDX. The contact stated that while at a stop, the vehicle lost automotive power, and all electrical features turned off. The vehicle was restarted and the battery warning light illuminated. The contact continued to drive the vehicle. The vehicle was taken to a local..."

Engine & Cooling ODI #11757405
Filed: 08/17/2026
Defect Report

"The vehicle intermittently fails to restart after the Auto Idle Stop system shuts the engine off at a traffic stop. When this occurs, the vehicle remains disabled until it is manually restarted. This has now happened repeatedly, including twice within one recent week. The vehicle was purchased new..."

Other / Miscellaneous ODI #11757152
Filed: 08/15/2026
Defect Report

"The auto start stop shut down the car when stopping at a red light and had to fully restart the car. This has happend several times since I owned the car. Its a safety issue is you need to move the car in an emergency or potential to reended by traffice behind you that assumes you are moving at a..."

Fuel & Propulsion System ODI #11757151
Filed: 08/15/2026
Defect Report

"After an auto idle stop at a major intersection, car failed to restart automatically and was left stranded unable to restart the car. Car would not shut off or turn back on when using the power button and with foot on brake but had power but it was in limp mode - transmission warnings flashed and..."

Multi-Year Trend

Complaint History for Acura MDX

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Acura MDX 70 5 8 View 2015 Problems →
2016 Acura MDX 366 10 7 View 2016 Problems →
2017 Acura MDX 260 7 9 View 2017 Problems →
2018 Acura MDX 164 3 10 View 2018 Problems →
2019 Acura MDX 193 4 9 View 2019 Problems →
2020 Acura MDX 220 3 8 View 2020 Problems →
2022 Acura MDX 143 6 2 View 2022 Problems →
2023 Acura MDX 38 2 2 View 2023 Problems →
2024 Acura MDX 37 1 2 View 2024 Problems →
2025 Acura MDX Current Page 87 2 3 Current
2026 Acura MDX 0 0 1 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2025 Acura MDX

Complete distribution of consumer defect reports across all 27 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Injury Entries Fatality Entries
Engine NHTSA category: ENGINE 18 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 17 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 12 0 0 1 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 6 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 5 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE 5 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 3 0 0 0 0
UNKNOWN OR OTHER,ENGINE 2 0 0 0 0
AIR BAGS,FORWARD COLLISION AVOIDANCE 1 1 0 0 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,LANE DEPARTURE 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
EQUIPMENT,BACK OVER PREVENTION 1 0 0 0 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 1 0 0 0 0
FUEL SYSTEM, GASOLINE,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,ENGINE 1 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER,ENGINE 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 1 0 0 0 0
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
Steering NHTSA category: STEERING 1 0 0 0 0
STEERING,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 1 0 4 0
STEERING,SUSPENSION,STRUCTURE 1 0 0 0 0
SUSPENSION,WHEELS,UNKNOWN OR OTHER 1 0 0 0 0
Tires NHTSA category: TIRES 1 0 0 0 0
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2025 Acura MDX

Direct, deterministic answers synthesized from verified United States government databases for the 2025 Acura MDX

What are the most common reported problems with the 2025 Acura MDX?

In official NHTSA consumer records, the most frequently cited issue area for the 2025 Acura MDX is Engine & Cooling, appearing in 46 records (52.9% of submitted filings).

Secondary reported categories include Electrical System (37) and Fuel & Propulsion System (12).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2025 Acura MDX a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 87 consumer defect complaints and 3 safety recall campaigns for the 2025 Acura MDX.

Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.

Source: NHTSA ODI & Safety Recalls Databases

Are there crash, fire, or injury reports associated with the 2025 Acura MDX?

Among consumer complaint records on file with NHTSA for the 2025 Acura MDX, 2 filings cite a crash, 0 cite smoke or fire, and 2 report one or more injuries.

Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.

Source: NHTSA Office of Defects Investigation Consumer Logs

Has NHTSA formally investigated defects on the 2025 Acura MDX?

NHTSA ODI records list 1 formal defect investigation involving the 2025 Acura MDX (1 currently open).

Federal defect investigations are formal engineering evaluations opened when safety defect trends emerge, and do not by themselves establish a confirmed defect or mandatory recall.

Source: NHTSA Office of Defects Investigation Registry
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.