RoadVitals

2021 Acura ILX

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
11
Latest Mar 20, 2026
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
0
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
3
1 injuries, 0 deaths reported

Overview

Our database contains 11 NHTSA owner-reported complaints for the 2021 Acura ILX, most frequently naming the driver assistance, exterior lighting and airbags categories. 36 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Driver assistance430.8%
  • Exterior lighting323.1%
  • Airbags215.4%
  • Electrical17.7%
  • Seat belts17.7%
  • Suspension17.7%
  • Visibility17.7%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

No recalls in our database for this model year

That does not guarantee a specific vehicle is unaffected — recalls are issued against VINs, and new campaigns are announced regularly. Check a VIN on NHTSA.gov.

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Driver assistanceExterior lighting
Filed Mar 20, 2026

I am reporting a severe and hazardous safety defect in my 2021 Acura ILX involving water intrusion into the headlight assembly, resulting in electrical failure of critical lighting and signaling components. Due to an apparent manufacturing defect in the headlight sealing, moisture is entering the housing and is visibly present as condensation, directly causing system malfunction. This defect leads to intermittent and unpredictable failure of the turn signal (blinker), including failure to activate and spontaneous activation without driver input. As a result, surrounding drivers cannot accurately determine my intended movements, significantly increasing the risk of a collision. Additionally, the headlight intermittently dims or shuts off at night, creating dangerously reduced visibility and unsafe driving conditions. The defect also compromises essential driver-assist safety systems, including blind spot monitoring and lane departure warning, which rely on consistent visibility and signaling. When these systems are impaired, the risk of unsafe lane changes and crashes is substantially elevated. The issue is ongoing, reproducible, and worsens with normal environmental exposure such as rain or humidity. There were no prior warnings. The failure began with visible condensation and has progressed into repeated electrical malfunction affecting multiple safety-related systems. This is a failure of federally required safety equipment, not a cosmetic issue. Loss of lighting, signaling, and safety system reliability presents a clear and unacceptable risk of crash, injury, or fatality. This defect does not appear isolated and may indicate a systemic manufacturing or design failure. Immediate investigation is necessary, and recall action is warranted to prevent further harm to drivers and the public.

NHTSA ID
11725735
Incident
Jan 30, 2026
Driver assistanceExterior lighting
Filed Mar 20, 2026

am reporting a serious safety defect in my 2021 Acura ILX involving the front headlight assembly. Water is entering the headlight housing due to what appears to be a manufacturer sealing defect, with visible condensation inside. This is causing electrical malfunction, including intermittent failure of the turn signal (blinker) and inconsistent headlight operation. The components are available for inspection upon request. This defect creates a significant safety hazard. The turn signal will fail to activate or activate randomly, preventing other drivers from knowing when I am changing lanes and increasing the risk of collisions. The headlight also intermittently dims or shuts off at night, reducing visibility and creating dangerous driving conditions. This issue also affects driver-assist safety systems, including blind spot monitoring and lane departure warning, which rely on proper signaling and visibility. When the lighting system malfunctions, these systems are less effective, increasing the risk of unsafe lane changes. The problem is ongoing and reproducible, especially after exposure to moisture. The malfunction occurs intermittently but frequently enough to make the vehicle unsafe. The vehicle has not yet been formally inspected, but inspection is being pursued. There were no warning lights prior to failure. The first symptom was condensation inside the headlight, followed by increasing failure of the blinker and headlight. This does not appear to be an isolated issue and may indicate a broader manufacturing defect. Because this directly impacts visibility and signaling, it is a critical safety concern. This issue should be urgently investigated for a recall to prevent accidents, injuries, or fatalities.

NHTSA ID
11725734
Incident
Jan 30, 2026
Airbags
Filed Dec 19, 2025
Crash reported

I am submitting this complaint regarding a 2021 Acura ILX (VIN: [XXX] ) that has been unreleasable for an extended period due to manufacturer inability to supply a required safety component. The vehicle was involved in an accident on July 6, 2025 and delivered to Caliber Collision in Corpus Christi, Texas. All accident-related repairs have been completed. However, the vehicle cannot be released because a required airbag and/or airbag module is unavailable. American Honda Motor Company, Inc. has advised that the safety component is unavailable to be sold and that no estimated time of availability exists. Due to the safety nature of the missing component, the repair facility has confirmed the vehicle cannot be legally or safely released. The delay is no longer accident-related and is solely due to manufacturer unavailability of a safety-critical, non-cosmetic part. I have requested interim solutions including buyback, rental assistance, or a dealership loaner, and no temporary or permanent solution has been provided. This complaint is submitted to document manufacturer inability to supply a required safety component resulting in extended loss of vehicle use. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11706024
Incident
Jul 10, 2025
Driver assistance
Filed Jul 30, 2024

My vehicle continues to accelerate when I press the gas pedal, and it sometimes makes clicking noises from underneath during acceleration. Occasionally, it veers to one side even when I keep the steering wheel straight. At times, it gives a warning and vibrates as if I'm merging into another lane. When I press the gas, the engine revs, but the car doesn't accelerate. Issues have been ongoing but dealership where I got the car from wants to charge me inspection fees per symptom.

NHTSA ID
11605515
Incident
Jul 30, 2024
Visibility
Filed Feb 29, 2024

The contact owns a 2021 Acura ILX. The contact stated that while driving at an undisclosed speed, he became aware that the white lines on the road appeared curved through the windshield. The contact then noticed that the windshield was distorted. The vehicle was taken to the dealer, where the contact was informed that the windshield was delaminating and needed to be replaced. The windshield was replaced under warranty; however, the replacement windshield was also defective. The vehicle was not repaired. The dealer referred the contact to the manufacturer. The manufacturer was notified of the failure. The contact was awaiting a call back from the manufacturer. The failure mileage was approximately 9,600.

NHTSA ID
11574756
Incident
Nov 15, 2023
Mileage
9,600 mi
Exterior lighting
Filed Jan 22, 2024

Upon and after raining the headlights leak and water enters the inside of the headlights. It my cause a short. Unsafe driving conditions at night.

NHTSA ID
11567077
Incident
Jan 21, 2024
Suspension
Filed Oct 20, 2023

It is Acura ILX 2021. The current mileage is 17,480. What component or system failed or malfunctioned, and is it available for inspection upon request? *Driveshaft/suspension is broken after inspection. How was your safety or the safety of others put at risk? *Intense shaking coming from underneath the vehicle. Worn out u-joints, couplers or carrier bearings can cause the driveshaft to vibrate and make noise when passing over bumps and potholes. If not fixed, it can lead to further damage to other drivetrain components. Has the problem been reproduced or confirmed by a dealer or independent service center? * Not sure for 2021 model. However, there is a recall history for model 2016-2019 Acura ILX. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? * The vehicle was inspected and waiting for remedy. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? * No there is no sign of warning. Due to extreme noise, the vehicle was inspected.

NHTSA ID
11551027
Incident
Oct 2, 2023
Seat belts
Filed Oct 2, 2023

The contact owns a 2021 Acura ILX. The contact stated that after entering the vehicle, he became aware that the driver's seat belt was stuck and would not uncoil. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the seat belt assembly. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was unknown.

NHTSA ID
11547853
Incident
Feb 11, 2023

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

B24040A

ENGINE

Service News - Due to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some customer’s driving patterns, they may not drive in the fashion needed to operate the VTEC (EGR/VVT) that only operates above 5,350 rpm to run the OBD monitoring. Therefore, the EGR/VVT OBD monitor group readiness status is not set to “Complete” when the customer presents their vehicle to a Smog Check station for inspection.

B23-012

EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS

Service Bulletin - Vehicle owner notices condensation or moisture trapped inside one or both headlight assemblies that does not evaporate from the lamp due to the headlight making contact with a body panel creating a separation in the adhesive between the headlight lens and the housing, allowing moisture to enter the headlight.

B23-012

EXTERIOR LIGHTING; STRUCTURE

Service Bulletin - The headlight making contact with a body panel can create a separation in the adhesive between the headlight lens and the housing, allowing moisture to enter the headlight.

BTI&12062022

EXTERIOR LIGHTING

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 ILXs with a client complaint of moisture/condensation in the headlights. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

BTI&11282022909

EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 ILXs with a client complaint of moisture/condensation in the headlights. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

BTI&11122022908

EXTERIOR LIGHTING

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 ILXs with a client complaint of moisture/condensation in the headlights. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Acura ILX by model year
YearComplaintsRecallsInvestigationsIssue Index
2022300
2021Viewing110052.7
2020921
2019365166.4
2018234061.5
2017204064.6
2016526063.6
2015194160.8
2014295163.4
2013666164.2

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.