Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can potentially affect the audio sound quality.
full bulletin at NHTSA ↗2022 Acura MDX electrical problems
moderate Owners of the 2022 Acura MDX have filed 10 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Complaints
10
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2018 MDX | 23 |
| 2019 MDX | 31 |
| 2020 MDX | 32 |
| 2022 MDX (this page) | 10 |
| 2023 MDX | 6 |
| 2024 MDX | 7 |
| 2025 MDX | 29 |
When does it fail?
Of the 10 electrical complaints filed for the 2022 Acura MDX, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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.
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.
Service Bulletin - Under certain circumstances when reversing near a chain-link fence or highly reflective surfaces, a parking and back-up sensor system abnormal message may be displayed in the multi-information display (MID).
full bulletin at NHTSA ↗Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system transport (MOST) bus network which can potentially affect the audio sound quality.
full bulletin at NHTSA ↗Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind. (Click HERE for examples of the photos)
full bulletin at NHTSA ↗Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of the 2022 Acura MDX describe a cluster of electrical problems starting early in ownership. Water leaks into the driver-side area on new vehicles as early as 7,000 miles, disabling keyless entry and remote functions—Acura's response includes refusal of replacement or buyback, no loaner vehicle during multi-day repairs, and aggressive customer service that leaves owners frustrated.
Battery drain is the most frequent complaint: owners report two battery replacements within 33 months despite in-warranty service. When the battery drains, the entire electrical system fails—lights blink, brake assist drops, and the car can stall mid-drive. One owner reports a dealer claimed the factory battery is undersized for the vehicle's electrical load. The infotainment screen staying grey when the car is off suggests a constant parasitic draw.
Additional faults include the Low-Speed Braking Control system engaging without input during parking maneuvers, a floor harness that traps moisture and triggers intermittent warning lamps 15–30 minutes into driving, and brake warning lights that flash repeatedly with no resolution despite dealer visits. One owner found a May 2021 service bulletin addressing brake issues but was never notified. An engine stall during idle-stop mode left one owner stranded on an interstate. The sunshade motor failure is documented under TSB 23-013.
Same Acura MDX electrical reports on nearby years: 2019 · 2020 · 2025
Failure modes owners describe
Water Ingress / Corrosion in Driver-Side Area
Water leaking into the vehicle, particularly on the driver side, leading to electrical system failures, keyless entry malfunction, and remote control failure. Owners report this occurs as early as 7,000 miles on new vehicles.
When: 7,000 miles
Symptoms owners cite: Keyless entry not working; Remote control not functioning; Water visible inside vehicle; Electrical system acting erratically
Repairs/costs cited: Dealer inspection required; owners report dealers request multi-day retention without loaner vehicle
Recalls/TSBs owners mention: No recalls or TSBs cited; owners report Acura refused replacement or buyback and offered only repair
Chronic Battery Drain / Premature Battery Failure
Battery drains rapidly despite replacement. Owners report multiple battery replacements within warranty period (two replacements in 33 months), with secondary symptoms including infotainment screen staying grey when vehicle is off, dashboard warning lights, and all electrical systems blinking or shutting down.
When: 33 months old; two replacements required
Symptoms owners cite: Battery drains rapidly; All systems blinking when battery drains; Vehicle stalls without warning during driving; Infotainment screen stays grey when powered off; Dashboard warning lights illuminated; Brake assistance failure when battery drains; Engine stall when idle stop feature engaged
Codes mentioned: Various system errors reported
Repairs/costs cited: Battery replacement performed twice in 33 months; dealer states factory battery undersized for vehicle electrical load; no warranty coverage on replacement batteries
Recalls/TSBs owners mention: No recall issued; dealer suggests factory battery is insufficient; no warranty on replacement batteries under car warranty
Low-Speed Braking Control Unwanted Engagement
Braking system engages without driver input during low-speed maneuvers. Owner reports brake pedal was not touched when sudden hard braking occurred during a right turn at a shopping center.
When: Not specified
Symptoms owners cite: Brakes engage without driver input; Sudden hard braking during low-speed turn; Unexpected complete vehicle stop
Repairs/costs cited: Owner reports disabling Low Speed Braking Control before each drive as workaround
Recalls/TSBs owners mention: Owner reports this is a known common problem (found via online search); no manufacturer statement provided
Floor Harness Moisture Trap / Electrical Fault
Floor harness design allows moisture accumulation, causing intermittent electrical faults and warning lamps. Owner reports poor design location creates a moisture trap. Secondary failure of air suspension system noted.
When: Warning lamps appear 15-30 minutes after vehicle is in motion
Symptoms owners cite: Warning lamps on dashboard; Error messages on dashboard; Air suspension malfunction; Intermittent faults appearing 15-30 minutes after motion begins
Repairs/costs cited: Component available for inspection; dealer has reproduced problem
Recalls/TSBs owners mention: No recall or TSB cited
Brake Warning Light Illumination / Brake System Fault
Brake warning light flashes repeatedly with no resolution from dealer service. Service bulletin from May 2021 exists but owner was not advised of the issue prior to purchase or use.
When: Not specified
Symptoms owners cite: Brake warning light flashing multiple times; Owner concern about brake system reliability
Repairs/costs cited: Dealer visits conducted; no resolution provided; issue under investigation per Acura
Recalls/TSBs owners mention: Service bulletin issued May 2021; owner states they were never advised of this TSB
Sunshade Motor Failure
Roof sunshade motor does not operate. Known issue with documented Technical Service Bulletin.
When: Not specified
Symptoms owners cite: Roof sunshade motor inoperative
Repairs/costs cited: Not specified
Recalls/TSBs owners mention: TSB 23-013 addresses this issue
Engine Stall During Idle Stop Mode
Vehicle stalls when attempting to resume driving after idle stop feature engages during traffic congestion. Vehicle becomes unresponsive to restart attempts for approximately 5 minutes before restarting normally.
When: During interstate driving in traffic
Symptoms owners cite: Vehicle stalls when resuming from idle stop; Multiple restart attempts fail; Dashboard warning lights and error messages appear; Vehicle unresponsive for ~5 minutes before restarting
Repairs/costs cited: Vehicle restarted after delay with no repair performed
Recalls/TSBs owners mention: No recall or TSB cited
Emissions / Powertrain Warning Messages
Dashboard displays emissions system failure warning and power shifting warnings with dealer referral messages. All-wheel drive power reduction warning also reported.
When: Not specified
Symptoms owners cite: Emissions System Failure warning; Power Shifting warning; Power may be reduced warning; All Wheel Drive (AWD) warning
Codes mentioned: Emissions System Failure, Power Shifting, AWD Power
Repairs/costs cited: Not specified
Recalls/TSBs owners mention: No recall or TSB cited
Synthesized from 10 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
My vehicle has a battery issue, we replaced the battery twice in two years still the issue might happened again and again. Once the battery start draining energy, everything start blinking and car stops all of a sudden in the middle of the road because of brake assistance problem. All the system errors come up. It is very scary to drive the vehicle with my kids inside. All system in car works…
As I was turning right (slowly accelerating from a complete stop) into a shopping center parking lot, I was entering into the lane behind a vehicle that had just passed in front of me (and was headed in the same direction I was going to turn). My 2022 Acura MDX Low Speed Braking Control system engaged for no reason. The breaks slammed hard bringing the car to a hard, sudden stop, and I thought I…
The brakes are not working warning light has flashed several times. In numerous calls and dealer visits Acura has no resolution the say it’s under investigation. There is a service bulletin from May of 2021 but I was never advised of this issue and I am very uncomfortable driving the car with a brake problem.
The roof sunshade motor has failed. It is a known issue with TSB 23-013
Had electrical trouble with your 2022 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 2022 Acura MDX?
It's a documented issue but not catastrophic. 10 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 10 complaints filed, electrical issues most often appear around 42,579 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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/2022/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.