Most common 2021 Acura ILX problems
Share of the 11 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Acura ILX complaints by model year
Best ILX years: 2020, 2015, 2017. Years to avoid: 2013, 2016, 2019. Compare all years →
What 2021 Acura ILX owners say
Driver assistance
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.
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. …
Lights
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. …
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. …
2021 Acura ILX engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.4L 4-cyl | 8-speed dual-clutch | FWD | 24 / 34 / 28 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2021 Acura ILX a good car?
Based on 11 owner complaints filed with NHTSA, the 2021 ILX rates average: about as many complaints as a typical year of the ILX at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Acura ILX?
The driver assistance — 4 complaints, 36% of all complaints for this model year, most often about blind spot detection. Next are the lights (3) and air bags (2).
How many recalls does the 2021 Acura ILX have?
NHTSA lists no recalls for the 2021 Acura ILX. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Acura ILX?
The best years by complaints, compared at the same age, are 2020, 2015 and 2017. Years to avoid or approach with caution: 2013, 2016 and 2019. See the full Acura ILX years comparison.
At what mileage do 2021 Acura ILX problems happen?
The median mileage reported in complaints is about 10,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.