The 2018 Acura RLX is associated with 6 official NHTSA owner defect complaints and 1 safety recall campaign in the federal safety database. The most frequently reported component area is Engine, accounting for 2 reports (33% of total complaints). EPA testing covers 2 certified vehicle configurations spanning 3.5l 6-cyl and 3.5L 6-Cyl hybrid configurations. Gasoline and hybrid variants deliver 23 to 28 MPG combined.

Key Data Findings
  • • NHTSA Owner Complaints: 6 reports
  • • Safety Recall Campaigns: 1 campaign
  • • Top Reported Defect Area: Engine (2 / 33%)
  • • NHTSA Overall Safety Rating: 5 / 5 Stars
  • • EPA Efficiency: 23–28 MPG (2 variants)
Data Note: Compiled directly from official NHTSA Office of Defects Investigation (ODI), NHTSA 5-Star Safety Ratings, and EPA FuelEconomy.gov databases.
Fuel Economy
23–28MPG
2 EPA certified variants (3.5l 6-cyl and 3.5L 6-Cyl hybrid configurations)
Reported Complaints
6
6 submitted owner reports
Safety Recalls
1
1 official NHTSA recall
NCAP Safety Rating
5 / 5 Stars Overall

What is the fuel economy and range of the 2018 Acura RLX?

Official EPA laboratory test ratings, electric driving range, and annual energy cost estimates by certified vehicle variant

Variant Engine Drivetrain Transmission City Highway Combined EV Range Est. Annual Fuel Cost
RLX 3.5L 6-Cyl Front-Wheel Drive Automatic (S10) 20 MPG 29 MPG 23 MPG — $3,300 / yr
RLX Hybrid Hybrid 3.5L 6-Cyl All-Wheel Drive Automatic (AM-S7) 28 MPG 29 MPG 28 MPG — $2,700 / yr
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.

What are the crash test safety ratings for the 2018 Acura RLX?

Official 5-Star Safety Ratings evaluated by the National Highway Traffic Safety Administration

Tested Drivetrain / Cab Variant Overall Rating Frontal Crash Side Crash Rollover Rating Rollover Risk
4 DR FWD 9.700000000000001%
Sport Hybrid 4 DR AWD 9.700000000000001%
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Standard and Lane Departure Warning (LDW) is documented as Standard in official NHTSA records for tested 2018 Acura RLX models.
View complete 2018 Acura RLX crash test & safety breakdown →

What defect complaints are reported for the 2018 Acura RLX?

Summary of 6 verified consumer defect submissions filed with the NHTSA Office of Defects Investigation (ODI)

Total Complaints
6
Crash Reports
0
Fire Reports
0
Complaints w/ Injury
0
Total Injuries
0

Top Reported Problem Categories

Ranked by total consumer complaint submissions recorded by NHTSA

Engine 2 complaints
Electrical System 1 complaint
ELECTRICAL SYSTEM,ENGINE AND ENGINE COOLING 1 complaint
Engine & Cooling 1 complaint
Fuel System 1 complaint

Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.

View all 2018 Acura RLX problems & component breakdown (5 categories) →

Are there open safety recalls on the 2018 Acura RLX?

Manufacturer safety recall campaigns monitored and recorded by NHTSA

NHTSA Campaign #23V858000 Active Recall
Affected Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Defect Summary: 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.

Free Manufacturer 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.
View all 2018 Acura RLX recalls & campaign history (1 campaigns) →
Official US Government Data Provenance

The specifications, safety ratings, defect reports, and recall campaigns published on this page are retrieved directly from official United States Government agency databases:

  • NHTSA Office of Defects Investigation (ODI): Consumer complaints and defect reports.
  • NHTSA New Car Assessment Program (NCAP): Frontal, side, and rollover 5-Star crash safety test ratings.
  • U.S. EPA / FuelEconomy.gov: Standardized multi-cycle dynamometer fuel economy, MPGe, and electric driving range ratings.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.