Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2014-2017 MDXs with a complaint of the automatic tailgate inop. The failure modes include the tailgate opening under power but immediately closing (reversing) on its own or the tailgate opening under power partially before stopping, requiring manual operation to fully open. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
full bulletin at NHTSA ↗2015 Acura MDX electrical problems
severe 13 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
13
Recalls
0
Avg fix
$850
1fire
When does it fail?
Of the 13 electrical complaints filed for the 2015 Acura MDX, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 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
Electrical accounts for 19% of all owner complaints filed against this vehicle, across 8 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2014-2017 MDXs with a complaint of the automatic tailgate inop. The failure modes include the tailgate opening under power but immediately closing (reversing) on its own or the tailgate opening under power partially before stopping, requiring manual operation to fully open. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
full bulletin at NHTSA ↗Dealer Message - American Honda Motor Co., Inc. (AHM) is requesting instrument panel bracket inspections of ALL 2014-2016 MDXs that fit the criteria listed below.
full bulletin at NHTSA ↗Dealer Message - American Honda Motor Co., Inc. (AHM) is requesting instrument panel bracket inspections of ALL 2014-2016 MDXs that fit the criteria listed below.
full bulletin at NHTSA ↗Dealer Message - American Honda Motor Co., Inc. (AHM) is requesting instrument panel bracket inspections of ALL 2014-2016 MDXs that fit the criteria listed below.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners describe a constellation of electrical failures spanning the entire 2015 MDX platform. The most dangerous involve the keyless entry and automatic door relock systems: multiple owners report being unable to unlock their vehicles with key fobs, and at least two parents had to call 911 when doors locked with infants inside—contradicting Acura's own owner manual, which states doors will not lock if the remote transmitter is present. Acura acknowledged the keyless issue as a known problem but refused to identify a fix.
More critical is the loss-of-power failure: one owner's vehicle suddenly lost all acceleration and power at 45 MPH while triggering seven simultaneous warning lights (check engine, emission system, all-wheel-drive, power steering, stability assist, hill start assist, trailer stability assist). A dealership couldn't diagnose it despite three visits in four days. In another incident, the power control module failed repeatedly in below-zero temperatures, causing sensor malfunctions that triggered unintended emergency braking and AWD failures; after replacement, the vehicle caught fire while parked.
Additional issues include intermittent taillight wiring failure unresolved over six years, chronic battery drain, LED headlight failure in wet weather, engine shutdown at traffic lights, automatic wiper activation without moisture, and false brake warning lights. One owner experienced violent shaking and illumination of all instrument-cluster warning lights while driving. Dealerships consistently report inability to diagnose or permanently repair these problems.
Same Acura MDX electrical reports on nearby years: 2012 · 2014 · 2016 · 2017 · 2018
Failure modes owners describe
Power Control Module Failure with Fire Risk
Power control module malfunction caused multiple sensor errors and system failures, particularly in cold weather below zero degrees F. After replacement, the vehicle caught fire behind the dashboard on the passenger side while parked with engine running.
When: First two years of ownership; fire incident on 2/15/2018
Symptoms owners cite: Multiple inoperative sensors displaying errors in cold weather; Collision mitigation system failure causing automatic brake engagement; AWD system failure reverting to front-wheel drive; Vehicle fire behind dash on passenger side
Repairs/costs cited: Power control module replaced by dealership after multiple visits; vehicle later caught fire and became total loss
Keyless Entry System Failure
Keyless entry system fails to unlock doors when key fob is in proximity to the vehicle. Interference issues occur when cell phone and keyless fob are in close proximity. System also fails to recognize fob signal unless fob is extracted and held in direct line with door lock sensor.
When: Early in ownership; issues reported from 5,000 miles
Symptoms owners cite: Door handles fail to unlock vehicle when fob pressed; Interference when cell phone and fob located together; Fob must be removed from purse and held directly at door lock sensor to function; Front doors will not open while rear doors and tailgate operate normally
Repairs/costs cited: Dealer unable to replicate and refused to repair; manufacturer acknowledged as known problem with no determined remedy
Recalls/TSBs owners mention: Manufacturer acknowledged known problem with keyless system; stated unable to determine proper remedy
Automatic Door Relock Feature Entrapment
Automatic safety relock feature activates unexpectedly, locking children and keys inside the vehicle despite owner manual stating doors will not lock when remote transmitter is inside vehicle. Feature relocks at 30 seconds even when settings changed to 90 seconds.
When: Throughout ownership; incidents reported 5/20/15 and subsequent occurrences
Symptoms owners cite: Doors lock automatically with baby inside vehicle; Remote transmitter locked inside vehicle contrary to owner manual; Automatic relock occurs at 30 seconds even after settings adjustment; Behavior contradicts owner's guide specifications
Repairs/costs cited: 911 response required to break window and rescue infant; no repair available
Recalls/TSBs owners mention: Acura claimed normal behavior and refused to disable feature; stated private video exists showing doors lock with remote inside vehicle contrary to published owner's guide
LED Headlamp Failure
LED headlamps fail to function during normal operation and specifically during inclement weather conditions, creating unsafe driving visibility.
When: At unknown mileage; no mileage data provided
Symptoms owners cite: LED headlamps fail to function; Failure occurs during inclement weather
Recalls/TSBs owners mention: Dealer service manager promised further action but no appointment scheduled; manufacturer notified
Rear Lighting System Failure
Taillight assembly fails intermittently. Replacement bulbs work briefly then stop functioning. Root cause identified as interior taillight assembly and wiring defect after six years of dealer visits.
When: Issues ongoing for 6 years of ownership across 50,000+ miles
Symptoms owners cite: Taillight stops working intermittently; Replacement bulb works for couple months then fails; Taillight works on and off unpredictably
Repairs/costs cited: Replacement bulb installed; second independent diagnosis identified interior taillight assembly and wiring as requiring replacement; dealership claimed issue was already fixed
Battery Drain and Electrical System Instability
Chronic battery failures occurring repeatedly throughout vehicle ownership. Almost every dealership visit for oil changes results in bad battery diagnosis. Defect remains undiagnosed despite multiple dealer visits and multi-day diagnostic sessions.
When: Throughout 6 years of ownership; approximately every 50,000 miles during service intervals
Symptoms owners cite: Recurring battery failures; Side mirror electrical failure requiring replacement; Multiple battery replacements needed
Repairs/costs cited: Multiple battery replacements by dealer; side mirror replaced due to electrical failure; root cause never identified
Multiple Warning Light Illumination with Loss of Power
Vehicle suddenly loses power and acceleration while driving. Multiple warning lights illuminate simultaneously including check engine, emission system, all-wheel drive system, power steering EPS, vehicle stability assist VSA, hill start assist, and trailer stability assist. Vehicle smokes excessively. Issue recurs shortly after being cleared.
When: Occurred in 45 MPH speed zones; recurred after 10 miles of driving
Symptoms owners cite: Sudden loss of acceleration and power while driving; Excessive smoking; Multiple warning lights illuminated simultaneously; Vehicle vibration; Intermittent recurrence after short driving distance
Codes mentioned: Check Engine, Emission System Problem, All Wheel Drive System Problem, Power Steering System EPS Problem, Vehicle Stability Assist VSA Problem, Hill Start Assist Problem, Trailer Stability Assist Problem
Repairs/costs cited: Dealership unable to diagnose problem across three visits in four days
Instrument Cluster Warning Lights with Vehicle Vibration
All warning indicators on instrument cluster illuminate simultaneously while driving, causing vehicle vibration. Issue recurs on numerous occasions with no successful diagnostic or repair.
When: At 23,000 miles
Symptoms owners cite: All warning indicators illuminate on instrument cluster; Vehicle vibrates; Recurring failure
Repairs/costs cited: Dealer unable to diagnose or repair
Recalls/TSBs owners mention: Manufacturer notified of failure
Engine Shutdown While Driving
Engine stalls and shuts off unexpectedly while driving at traffic lights. Vehicle requires multiple restart attempts before allowing engagement to drive mode.
When: At unknown mileage; occurred on multiple occasions
Symptoms owners cite: Violent car shake at red light while approaching stop; Engine shutoff without warning; Multiple restart attempts required before vehicle engages to drive mode
Repairs/costs cited: Dealer inspection found nothing; issue recurred few days later
Miscellaneous Electrical and Sensor Malfunctions
Multiple intermittent electrical and sensor system failures including infotainment issues, tailgate opening without command, door lock failures, automatic wiper activation, false brake warning lights, and rear brake hang-up.
When: Throughout ownership
Symptoms owners cite: Infotainment system issues; Tailgate opens without being operated; Driver side door fails to unlock with key fob; Wipers activate without moisture on windshield; Brake warning light illuminates without traffic present; Rear brakes hang up and release while moving slowly
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Odometer Fraud. The contact purchased a 2015 Acura MDX. The contact stated that upon retrieving the Carfax report of the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 105,000, and the mileage on the Carfax report was 215,000 in July 2025. The MVA was contacted and referred the contact to the Police…
Vehicle stops accelerating while driving and loses power without warning. Multiple engine lights go off: check engine, emission system problem, all wheel drive system problem, power steering system eps problem, vehicle stability assist vsa problem, hill start assist problem, trailer stability assist problem. Car starts smoking excessively. Returned to the dealer several times in just a few…
Had electrical trouble with your 2015 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 electrical problem on the 2015 Acura MDX?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Across the 10 complaints that reported odometer mileage, most electrical failures cluster between 12,000 and 85,000 miles, with the median around 60,000. A quarter of owners report trouble before 12,000; a quarter make it past 85,000. 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 $850 for electrical 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 electrical?
No active recalls currently cover electrical 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/2015/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.