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2018 Kia Rio LX Sedan Auto

The 2018 Kia Rio LX Sedan Auto is a 130-hp inline-4 sedan with a 6-speed automatic and front-wheel drive. It starts at $14,990 MSRP and is rated at 32 mpg combined.

It makes 130 horsepower at 6,300 rpm and 119 lb-ft of torque at 4850 rpm. EPA fuel-economy estimates are 28 mpg city and 37 mpg highway (32 mpg combined).

The Rio measures 172.6 inches long on a 101.6-inch wheelbase and has a curb weight of 2,714 lb.

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Price
MSRP$14,990
MSRP with Destination$15,885
Destination Charge$895
Engine
Engine TypeGamma 1.6L GDI DOHC inline-4, Dual-CVVT, naturally aspirated
Horsepower130 hp @ 6,300 rpm
Torque119 lb-ft @ 4850 rpm
ValvetrainDOHC 16-valve with Dual-CVVT
Bore and Stroke77.0 x 85.44
Compression Ratio11.0:1
Injection TypeGasoline Direct Injection (GDI)
Drivetrain
Drive TypeFront-Wheel Drive
Transmission
Transmission6-speed automatic
1st Gear4.4
2nd Gear2.726
3rd Gear1.834
4th Gear1.392
5th Gear1
6th Gear0.774
Reverse3.44
Final Drive3.065
Fuel Economy
City28 MPG
Highway37 MPG
Combined32 MPG
Recommended FuelRegular unleaded
Suspension
Turning Diameter33.46 ft
Tires & Wheels
Wheels Front15 in
Wheels Rear15 in
Tires FrontP185/65R15
Tires RearP185/65R15
Dimensions & Weight
Length172.6 in
Width67.9 in
Height57.1 in
Wheelbase101.6 in
Front Track60 in
Rear Track60.2 in
Ground Clearance5.5 in
Cargo Volume13.7 ft³
Curb Weight2,714 lbs
Interior
Headroom Front38.9 in
Headroom Rear37.4 in
Legroom Front42.1 in
Legroom Rear33.5 in
Shoulder Room Front54.1 in
Shoulder Room Rear53.3 in
Hip Room Front52.9 in
Hip Room Rear52.4 in

Safety & Recalls

NCAP safety ratings

Tested, but no star ratings were published (2018 Kia Rio 4 DR FWD).

Recalls

1 recall on file with NHTSA for the 2018 Kia RIO. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

Aug 9, 2021 · LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH

Kia Motors America (Kia) is recalling certain 2016-2018 Forte 4-door, Forte Koup 2-door, and 2018-2019 Rio 4-door vehicles. The trunk latch may become damaged, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk Release."

Consequence: A person inside the trunk compartment may become trapped, increasing their risk of injury.

Remedy: Dealers will replace the trunk latch assembly, free of charge. Owner notification letters were mailed on February 10, 2022. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC216.

NHTSA campaign 21V622000

28 owner complaints to NHTSA for the 2018 Kia RIO

Owner Complaints

28 owner complaints filed with NHTSA for the 2018 Kia RIO (3 mention a crash, 2 a fire, 1 an injury). See all on nhtsa.gov

Most-cited areas
Engine15
Air Bags5
Electrical System5
Unknown Or Other5
Exterior Lighting2
Fuel/Propulsion System2
A complaint can cite more than one area.
Most recent complaints
Aug 5, 2026 · Electrical System, Air Bags, Engine
“The Components that have malfunctioned are the airbags, exaust system, electrical systems, sensors, gaskets, and a few other things. We had 5 failed clockspring repairs. The first (3?) under warranty…”
May 23, 2026 · Engine
“Vehicle has excessive oil consumption defect acknowledged in Kia TSB ENG222. Repeated catalytic converter failures indicate potential overheating risk similar to 2019 Gamma engine recall for fire…”
Mar 26, 2026 · Electrical System, Air Bags
“Took my car in as the airbag light on the dashboard kept turning on and off— with or without a passenger in the seat. The dealership ran a diagnostic inspection and turns out that the passenger side…”
Mar 26, 2026 · Electrical System, Air Bags, Engine
“The first problem part is the airbag. The clockspring was fixed twice under warranty. Then the dealership said they wont keep doing it and blamed me wrongly. I had a private mechanic repair the same…”
Jan 27, 2026 · Air Bags, Seats
“My car is a 2018 Kia Rio that has a clean history and has never been in an accident. Recently my airbag light came on and I had a diagnostic run that showed a B1448 code indicating an OCS mat defect…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2018 KIA RIO. US-market vehicles only; data cached for up to 7 days.

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