Kia K5 research: recalls, reliability and buyer's guide

The K5 is a stylish, well-equipped midsize sedan with a low, fastback look and available all-wheel drive. 2021-2024 models use a 180-hp 1.6L turbo rated up to about 32 mpg combined; the 2025 refresh switched to a 191-hp 2.5L non-turbo engine and updated styling. The GT has a 290-hp turbo engine and a quick-shifting dual-clutch transmission. Check recalls by VIN, especially on 2021-2023 GTs.

Model years covered: 2021–2026. 2026 is a carryover of the refreshed 2025 model; verify 2026 trims, equipment and pricing against current Kia data.

Last updated 2026-10-15.

Strengths

Sharp fastback styling
Available all wheel drive
Strong highway fuel economy
Quick 290 hp GT
Generous standard technology
Good value versus camry and accord

Things to know before you buy

Engine changes for 2025 resolve by VIN
GT line is not the GT
2021 2023 GT dual clutch recall check
Anti theft upgrade for 2021 2022 turn key cars
Rear headroom tighter than some rivals due to sloping roof
No hybrid version in the US
Recall status should be checked by VIN

Generations

Generation 1 (2021–present)

The first U.S. K5 launched for 2021 on a new platform shared with the Hyundai Sonata. 2021-2024 cars use a 180-hp 1.6L turbo with an 8-speed automatic and available AWD, or the 290-hp 2.5L turbo GT with an 8-speed wet dual-clutch. The base LX was dropped for 2023. The 2025 refresh brought new styling, an updated cabin and a 191-hp 2.5L non-turbo engine in place of the 1.6T.

Buyer takeaway: For value, a 2021-2024 1.6T (LXS, GT-Line or EX) is a strong buy; for the latest styling and a simpler non-turbo engine, choose 2025-2026. Pick an AWD GT-Line for snowy climates and a GT for performance, confirming the dual-clutch recall on 2021-2023 GTs.

Kia K5 by model year

2026 Kia K5

The 2026 K5 is essentially a carryover of the refreshed 2025: LXS, GT-Line and EX use the 191-hp 2.5L four with an 8-speed automatic (about 26/37 mpg FWD with stop-start, 24/33 mpg with AWD), and the GT keeps the 290-hp 2.5L turbo and 8-speed dual-clutch. Visible changes are minor, such as a new GT-Line wheel design. Verify 2026 equipment against current Kia data.

Engines: 2.5 liter I4 191 hp 181 lb ft; 2.5 liter turbo I4 290 hp 311 lb ft GT
Transmissions: 8 speed automatic 2.5 liter; 8 speed wet dual clutch GT only
Drivetrain: Front wheel drive; All wheel drive available on GT line
Body style: 4 door sedan

What changed:

New 18 inch wheel design for GT line
GT logo removed from GT brake calipers
Otherwise carryover from 2025

What to inspect: Open recalls by VIN; Exact engine and transmission resolution by VIN; 8 speed automatic shift quality; Dual clutch low speed engagement if GT; AWD operation and matching tires if AWD; Driver assistance sensors and cameras; Infotainment and smartphone connection; Suspension and tires; Maintenance history.

2025 Kia K5

The 2025 K5 got a mid-cycle refresh with new front and rear styling and an updated interior. The 1.6L turbo is gone: LXS, GT-Line and EX use a new 191-hp, non-turbo 2.5L four with an 8-speed automatic (about 25-26 city and 36-37 highway mpg), and GT-Line AWD uses the same engine (about 24/33 mpg). The GT keeps the 290-hp 2.5L turbo with the 8-speed dual-clutch.

Engines: 2.5 liter I4 191 hp 181 lb ft; 2.5 liter turbo I4 290 hp 311 lb ft GT
Transmissions: 8 speed automatic 2.5 liter; 8 speed wet dual clutch GT only
Drivetrain: Front wheel drive; All wheel drive available on GT line
Body style: 4 door sedan

What changed:

Refreshed front and rear styling and updated cabin
New 191 hp 2.5 liter non turbo engine replaces the 1.6 liter turbo
AWD now paired with the 2.5 liter on GT line
GT keeps 290 hp turbo and dual clutch

What to inspect: Open recalls by VIN; Exact engine and transmission resolution by VIN; 8 speed automatic shift quality; Dual clutch low speed engagement if GT; Tires and brakes on GT; AWD operation and matching tires if AWD; Driver assistance sensors and cameras; Infotainment and smartphone connection; Suspension and tires; Maintenance history.

2024 Kia K5

The 2024 K5 is a quiet carryover, with heated front seats now standard on the GT-Line. It is the last year of the original styling and of the 180-hp 1.6L turbo (8-speed automatic, about 27/37 mpg FWD and 25/33 mpg AWD). The GT keeps its 290-hp 2.5L turbo and 8-speed dual-clutch. A 2024 can be a good value versus the refreshed 2025 if priced to match.

Engines: 1.6 liter turbo I4 180 hp 195 lb ft; 2.5 liter turbo I4 290 hp 311 lb ft GT
Transmissions: 8 speed automatic 1.6 liter turbo; 8 speed wet dual clutch GT only
Drivetrain: Front wheel drive; All wheel drive available on 1.6 liter turbo trims
Body style: 4 door sedan

What changed:

Heated front seats standard on GT line
Last year of the 1.6 liter turbo
Last year before the 2025 refresh

What to inspect: Open recalls by VIN; Exact engine and transmission resolution by VIN; Turbo engine cold start and boost behavior; Oil change records and oil level; 8 speed automatic shift quality; Dual clutch low speed engagement if GT; Tires and brakes on GT; AWD operation and matching tires if AWD; Driver assistance sensors and cameras; Infotainment and smartphone connection; Suspension and tires; Maintenance history.

2023 Kia K5

For 2023 Kia dropped the base LX, so the LXS became the entry K5. Powertrains carry over: the 180-hp 1.6L turbo with an 8-speed automatic (about 27/37 mpg FWD, 25/33 mpg AWD) and the 290-hp 2.5L turbo GT with an 8-speed dual-clutch. Some early-built 2023 GTs are included in the dual-clutch oil-pump recall, so check the VIN.

Engines: 1.6 liter turbo I4 180 hp 195 lb ft; 2.5 liter turbo I4 290 hp 311 lb ft GT
Transmissions: 8 speed automatic 1.6 liter turbo; 8 speed wet dual clutch GT only
Drivetrain: Front wheel drive; All wheel drive available on 1.6 liter turbo trims
Body style: 4 door sedan

What changed:

Base lx trim dropped
Lxs becomes the entry trim
Minor equipment changes on upper trims

What to inspect: Open recalls by VIN; Exact engine and transmission resolution by VIN; Turbo engine cold start and boost behavior; Oil change records and oil level; 8 speed automatic shift quality; GT dual clutch oil pump recall completion if GT; Dual clutch low speed engagement if GT; Tires and brakes on GT; AWD operation and matching tires if AWD; Driver assistance sensors and cameras; Infotainment and smartphone connection; Suspension and tires; Maintenance history.

2022 Kia K5

The 2022 K5 carries over the 2021 car: a 180-hp 1.6L turbo four with an 8-speed automatic on mainstream trims (about 29/38 mpg on the LX, 27/37 on other FWD trims) and available AWD, plus the 290-hp 2.5L turbo GT with an 8-speed dual-clutch. GTs built through August 2022 fall within a dual-clutch oil-pump recall, and turn-key cars qualify for Kia's anti-theft software upgrade.

Engines: 1.6 liter turbo I4 180 hp 195 lb ft; 2.5 liter turbo I4 290 hp 311 lb ft GT
Transmissions: 8 speed automatic 1.6 liter turbo; 8 speed wet dual clutch GT only
Drivetrain: Front wheel drive; All wheel drive available on 1.6 liter turbo trims
Body style: 4 door sedan

What changed:

Largely carryover from 2021
Same 1.6 liter turbo and GT powertrains

What to inspect: Open recalls by VIN; Exact engine and transmission resolution by VIN; Turbo engine cold start and boost behavior; Oil change records and oil level; 8 speed automatic shift quality; GT dual clutch oil pump recall completion if GT; Dual clutch low speed engagement if GT; Tires and brakes on GT; Anti theft software upgrade if turn key ignition; AWD operation and matching tires if AWD; Driver assistance sensors and cameras; Infotainment and smartphone connection; Suspension and tires; Maintenance history.

2021 Kia K5

The 2021 K5 replaced the Optima with sleek fastback styling and a new platform. Most trims (LX, LXS, GT-Line, EX) use a 180-hp 1.6L turbo four with an 8-speed automatic, rated about 29/38 mpg city/highway on the LX and 27/37 on other FWD trims; all-wheel drive is available on some 1.6T trims (about 26/34 mpg). The GT has a 290-hp 2.5L turbo with an 8-speed dual-clutch. Check GT recall work by VIN.

Engines: 1.6 liter turbo I4 180 hp 195 lb ft; 2.5 liter turbo I4 290 hp 311 lb ft GT
Transmissions: 8 speed automatic 1.6 liter turbo; 8 speed wet dual clutch GT only
Drivetrain: Front wheel drive; All wheel drive available on 1.6 liter turbo trims
Body style: 4 door sedan

What changed:

New nameplate replacing the optima
Fastback style sedan on a new platform
1.6 liter turbo with 8 speed automatic replaces the optima engines
First all wheel drive on kia midsize sedan
GT trim with 290 hp 2.5 liter turbo and dual clutch

What to inspect: Open recalls by VIN; Exact engine and transmission resolution by VIN; Turbo engine cold start and boost behavior; Oil change records and oil level; 8 speed automatic shift quality; GT dual clutch oil pump recall completion if GT; Dual clutch low speed engagement if GT; Tires and brakes on GT; Anti theft software upgrade if turn key ignition; AWD operation and matching tires if AWD; Driver assistance sensors and cameras; Infotainment and smartphone connection; Suspension and tires; Maintenance history.

Known issues and what to check

GT Dual-Clutch Transmission Electric Oil Pump Recall (2021–2023)
Kia recalled certain 2021-2023 K5 GT models with the 2.5L turbo and 8-speed dual-clutch transmission built from November 16, 2020 through August 12, 2022 (NHTSA recall 22V-760, about 69,000 cars). The transmission's electric oil pump could fail; the car may warn the driver, run normally for 20-30 seconds, and then lose drive power. The remedy is a dealer inspection, a software update and transmission replacement if needed.
What to do: On a 2021-2023 K5 GT, confirm the recall was completed before buying.
Anti-Theft Software Upgrade (Turn-Key Ignition Models) (2021–2022)
Kia offered a free anti-theft software upgrade for 2021-2022 K5 models with a traditional turn-key ignition (no push-button start) after a wave of thefts targeting cars without an engine immobilizer. The update extends the alarm and requires the key fob to unlock the car before it can be started. Eligibility depends on the vehicle's ignition type and VIN.
What to do: If the car has a turn-key ignition, confirm the free anti-theft software upgrade was done (a Kia dealer can install it) and check your insurer's requirements.
GT 8-Speed Wet Dual-Clutch Operation (2021–2026)
The K5 GT uses an 8-speed wet dual-clutch transmission instead of the conventional automatic in other K5s. Dual-clutch gearboxes can feel different at very low speeds (slight hesitation or clutch-like engagement), so test stop-and-go driving and parking maneuvers on a GT.
What to do: Drive a K5 GT in stop-and-go conditions before buying, and confirm all recall work.
1.6L Turbo Maintenance and Oil Level (2021–2024)
The 2021-2024 K5's 180-hp 1.6L turbo is a small, direct-injected turbo engine. Like other turbo engines it benefits from on-time oil changes with the correct oil, and owners should watch the oil level between changes.
What to do: Favor cars with documented, on-time oil changes.
All-Wheel-Drive System and Tire Matching (2021–2026)
AWD K5s (1.6T trims for 2021-2024, the 2.5L GT-Line from 2025) need four matching tires; mismatched tread depth can strain the AWD coupling.
What to do: On an AWD K5, check that all four tires match.
2025 Powertrain Change: 1.6 Turbo vs. 2.5 Non-Turbo (2021–2026)
The K5 changed engines for 2025. 2021-2024 mainstream trims use a 180-hp 1.6L turbo; 2025-2026 mainstream trims use a 191-hp 2.5L without a turbo. Every GT uses the 290-hp 2.5L turbo with a dual-clutch. Listings sometimes mix these up, so confirm the engine by VIN.
What to do: Confirm the year, trim, engine and drivetrain before comparing prices.

Recalls

Recall applicability varies by model year, production date, engine, transmission, equipment, and VIN. Check the VIN for current open recalls, service campaigns, and completed remedies. For 2021-2023 K5 GT models, confirm the dual-clutch oil-pump recall (22V-760); for 2021-2022 turn-key models, confirm the anti-theft software upgrade.

Similar vehicles to consider

Questions this guide answers

Is the Kia K5 the same as the Optima?
What engine does this K5 have?
What changed on the 2025 K5?
What is the difference between the K5 GT-Line and the K5 GT?
Does the K5 come with all-wheel drive?
Has the K5 GT dual-clutch recall been done on this car?
Does this K5 need the anti-theft software upgrade?
What fuel economy does the K5 get?
What should I inspect on a used K5?
What similar vehicles should I consider?