YearToAvoid

2021 Acura ILX Reliability Data: Problems & Recalls

Caution The 2021 Acura ILX has a complaint index of 56, ranking 5th-worst out of 10 model years, earning a Caution verdict. Owners most often reported electrical system issues (36% of complaints), with no recalls filed for this year.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
56/100
#5 of 10 ILX years
Verdict
Caution
vs. other years of this model
Complaints
11
unique NHTSA reports
Recalls
0
distinct NHTSA campaigns
Crashes
3
reported in complaints
Fires
0
Injuries
1
Top issue
Electrical System
Best nearby year
2020
rated Best
NHTSA overall rating
5 / 5 ★
EPA combined MPG
28
24 city / 34 hwy
Injuries / deaths
1 / 0

Top 2021 Acura ILX problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Electrical System4 (36%)
  2. Lane Departure3 (27%)
  3. Other3 (27%)
  4. Airbags2 (18%)
  5. Collision Avoidance & Cameras1 (9%)
  6. Seat Belts1 (9%)
  7. Suspension, Wheels & Tires1 (9%)
  8. Visibility & Wipers1 (9%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Airbags have deployed without any impact while parking, at a median mileage of 5,800 miles for failures, in one case leading to a collision with a pole.
  • Owners describe electrical failures that leave the vehicle needing constant jump starts, with warning lamps failing to alert the driver.
  • Headlights reportedly leak water after rain, raising concern about a possible short circuit.
  • A driver's seat belt was reported stuck and would not uncoil, with no warning light illuminated.
  • The windshield reportedly delaminated, distorting the driver's view of road lines while driving.
2021 Acura ILX complaints: complaints filed per month2Sep 2021Dec 2022Jan 2024Jul 2024Mar 2026
11 complaints filed with NHTSA from Sep 2021 to Mar 2026; peak Oct 2023 (2).

2021 Acura ILX recalls

No safety recalls on record for this model year.

2021 Acura ILX fuel economy and fuel cost

City
24 MPG
Highway
34 MPG
Combined
28 MPG
Annual fuel cost (EPA)
$2,850
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2021 compared with other ILX years

Complaint Index by model year (0 = fewest issues, 100 = most)02550751002013201420152016201720182019202020212022
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2019Avoid7836528
2020Best1110228
2021Caution5611028
2022No verdict03028

All Acura ILX years: best and worst →

Frequently asked questions

Is the 2021 Acura ILX reliable?
It carries a complaint index of 56 and a Caution verdict, ranking 5th-worst among the 10 ILX model years with data. Electrical system problems are the most common complaint, making up 36% of reports.
Does the 2021 Acura ILX have any recalls?
No. NHTSA lists zero recalls for the 2021 ILX, though it still received 11 owner complaints covering electrical, airbag, and other systems.
What is the biggest problem with the 2021 Acura ILX?
Electrical system issues are the top problem area, accounting for 4 of 11 complaints (36%), including reports of headlight water leaks and vehicles needing frequent jump starts.
How does the 2021 ILX compare to other years?
With a complaint index of 56, the 2021 ILX ranks worse than years like 2020 (index 11, Best) and 2015 (index 22, Best), but better than 2016 (index 100, Avoid) and 2013 (index 89, Avoid).

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.