YearToAvoid

2018 Acura RDX Reliability Data: Problems & Recalls

Caution The 2018 Acura RDX has a Complaint Index of 56, ranking 9th worst out of 19 model years, and carries a Caution verdict. Fuel System complaints make up 44% of reports, with 1 recall on file.

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

YearToAvoid Scorecard

Complaint Index
56/100
#9 of 19 RDX years
Verdict
Caution
vs. other years of this model
Complaints
77
unique NHTSA reports
Recalls
1
distinct NHTSA campaigns
Crashes
5
reported in complaints
Fires
0
Injuries
3
Top issue
Fuel System
Best nearby year
2012
rated Best
NHTSA overall rating
5 / 5 ★
EPA combined MPG
22.5
19.5 city / 27.5 hwy
Injuries / deaths
3 / 0

Top 2018 Acura RDX problems

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

  1. Fuel System34 (44%)
  2. Engine17 (22%)
  3. Transmission & Powertrain12 (16%)
  4. Electrical System10 (13%)
  5. Other7 (9%)
  6. Brakes5 (6%)
  7. Structure & Body5 (6%)
  8. Collision Avoidance & Cameras4 (5%)
  9. Airbags3 (4%)
  10. Lane Departure3 (4%)

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

What owners report

  • Automatic emergency braking has failed to release during wet-weather braking, causing the vehicle to hydroplane and spin out.
  • Owners describe unexpected vehicle rollaway after the driver exits with the engine still running, in one case pushing the vehicle into a tree.
  • Some report the vehicle lurching forward or stalling on its own while parking or cornering at low speed.
  • Seatback failure has been reported in a rear-end collision, allowing the occupant to slip under the seatbelt.
  • Rodents reportedly chewed wiring harnesses and battery cables under the hood while the vehicle was parked, requiring wiring replacement.
  • Brake lights have failed to function due to a missing relay power connection.
2018 Acura RDX complaints: complaints filed per month7Jan 2018Dec 2018Jun 2021Feb 2023Jan 2024Sep 2024May 2025May 2026
77 complaints filed with NHTSA from Jan 2018 to Aug 2026; peak Dec 2024 (7).

2018 Acura RDX recalls

1 NHTSA recall campaign list this model year.

  1. NHTSA 23V858000Dec 18, 2023Fuel System2,490,460 vehicles

    Fuel system, gasoline:delivery:fuel pump

    Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.

    Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

    Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.

2018 Acura RDX fuel economy and fuel cost

City
19.5 MPG
Highway
27.5 MPG
Combined
22.5 MPG
Annual fuel cost (EPA)
$3,550
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.

2018 compared with other RDX years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’07’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2016Good3340222.5
2017Caution6776122.5
2018Caution5677122.5
2019Avoid94438523.5
2020Avoid100345523.5

All Acura RDX years: best and worst →

Frequently asked questions

Is the 2018 Acura RDX reliable?
NHTSA data gives the 2018 RDX a Complaint Index of 56 and a Caution verdict, ranking 9th worst among 19 model years of the RDX. Fuel System complaints account for 44% of reports for this year.
What is the biggest problem area for the 2018 Acura RDX?
Fuel System complaints lead with 34 reports, 44% of all complaints, at a median mileage of 46,750 miles. Engine complaints follow at 22% with a much lower median mileage of 9,250 miles.
Does the 2018 Acura RDX have a recall?
Yes, one recall (campaign 23V858000) covers a fuel pump module replacement across multiple Honda and Acura models including the 2018 RDX. It is not a do-not-drive recall.
How does the 2018 RDX compare to other RDX years?
The 2018 RDX's Complaint Index of 56 is worse than earlier years like 2011 and 2012, which earned Best verdicts with indexes of 6 and 0. It is better than 2019 and 2020, which rank as Avoid with indexes of 94 and 100.
What mileage do problems tend to show up on the 2018 RDX?
Overall median mileage at failure is 6,500 miles, but Fuel System issues show up later at a median of 46,750 miles while Brakes issues show up early at 1,600 miles.

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.