2018 Acura RLX: recalls, fuel economy and safety ratings
EPA rates the 2018 Acura RLX at 23–28 mpg combined across 2 versions. NHTSA lists 1 safety recall and 9 owner complaints for this model year. Its best NHTSA overall crash-test rating is 5 out of 5 stars.
Safety recalls
1
EPA combined mpg
23–28
NHTSA overall rating
5/5
Recall file dated Oct 27, 2026 · EPA file dated Sep 29, 2026 · updated Oct 27, 2026, 7:34 AM EDT
NHTSA lists this vehicle as RLX HYBRID.
Check your own car: enter your 17-character VIN at nhtsa.gov/recalls to see open recalls for that exact vehicle, and contact a Acura dealer to schedule the repair — safety recall repairs are free. The list below covers the whole model year, so not every recall applies to every car.
2018 Acura RLX recalls
NHTSA's recall file lists 1 safety recall for the 2018 Acura RLX, newest first.
Fuel system, gasoline: Delivery: Fuel pump
NHTSA 23V858000Reported Dec 18, 2023
Filed by
Honda (American Honda Motor Co.) (manufacturer recall no. KGC, KGD)
Units affected
2,490,460 (estimate)
Problem
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.
Recall summaries are written by NHTSA from manufacturers' defect reports. Dates are when NHTSA received the report.
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2018 Acura RLX fuel economy by version
EPA city/highway/combined estimates for each engine, transmission and drive combination. Annual fuel cost is EPA's estimate for 15,000 miles a year (55% city, 45% highway) at EPA's current fuel-price assumptions; your cost will vary.
Source: FuelEconomy.gov (U.S. DOE and EPA), file dated Sep 29, 2026. Each version links to its FuelEconomy.gov record.
EPA estimates come from standardized lab tests so cars can be compared fairly; real-world mileage depends on speed, weather, load, tires and driving style.
2018 Acura RLX crash-test ratings
NHTSA 5-Star Safety Ratings for the tested versions. More stars mean a lower chance of serious injury in that type of crash. Rollover risk is NHTSA's estimated chance of rolling over in a single-vehicle crash.
2018 Acura RLX NHTSA 5-Star Safety Ratings
Tested vehicle
Overall
Frontal
Side
Rollover
Rollover risk
Forward collision warning
2018 Acura RLX 4 DR FWD
5 stars
5 stars
5 stars
5 stars
9.7%
Standard
2018 Acura RLX Sport Hybrid 4 DR AWD
Not rated
Not rated
5 stars
5 stars
9.7%
Standard
Source: NHTSA 5-Star Safety Ratings (New Car Assessment Program), checked Oct 26, 2026.
Star ratings compare vehicles of similar size and weight; a frontal rating for a large pickup is not directly comparable with one for a small car.
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2018 Acura RLX owner complaints
Owners have filed 9 complaints with NHTSA about the 2018 Acura RLX, most recently on Jun 2, 2026. 0 mention a crash, 0 a fire, 0 injured people and 0 deaths. These are unverified reports; a complaint is not proof of a defect.
Most-cited components in 2018 Acura RLX complaints
Component named in complaints
Mentions
Engine
3
Electrical system
1
Electrical system: Starter assembly
1
Engine and engine cooling
1
Engine and engine cooling: Engine: Crank/camshaft position sensor
1
Fuel system, gasoline
1
Fuel/propulsion system
1
Power train
1
Source: NHTSA consumer complaint files (complaints received since January 1, 2015). One complaint can name several components.
