Used 2021 Kia K5 Sedan Consumer Reviews
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Transmission leak.
Karla I, 03/10/2021
2021 Kia K5 GT 4dr Sedan (2.5L 4cyl Turbo 8AM)
4 of 21 people found this review helpful
It’s a very nice car inside and out. Went in for first oil change at 2,850 miles. Shop called me telling me, they found a transmission fluid.
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Kia is the way
Gabriel Ramirez, 11/18/2020
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
3 of 16 people found this review helpful
Great all around
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Sporty and Practical
Michael_Evans1, 01/31/2021
2021 Kia K5 GT-Line 4dr Sedan AWD (1.6L 4cyl Turbo 8A)
1 of 5 people found this review helpful
This is a beautiful car. It get great fuel mileage and has the get up and go when you need it.
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Peppy and sporty!
Ken, 08/30/2020
2021 Kia K5 GT 4dr Sedan (2.5L 4cyl Turbo 8AM)
3 of 29 people found this review helpful
Nice looking...Turbo GT with 38 miles per gallon!
Great car look good and sporty the seat.re suppor
Peter L Jackson, 11/18/2020
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
1 of 16 people found this review helpful
Be prepared to make a deal with the highest confidence and information available.
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Innovative
tokematt, 01/03/2021
2021 Kia K5 GT 4dr Sedan (2.5L 4cyl Turbo 8AM)
1 of 16 people found this review helpful
Sporty
2021 kia k5 1.6t
Cobra 1978, 01/01/2022
2021 Kia K5 LX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
This review is for kia k5 1.6 t 2021.is big inside .slow acceleration. Engine tapping noise when accelerating. Suspension is very good. Press button on steering whell and he keep you in the lanes. Seats is comfortable. Fuel economy is very good esspecialy in the summer. 30 city ober 40 hwy
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Outstanding vehicle
Richard ‘Flash’ Hash, 03/16/2022
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
This vehicle drives out nicely, handles superbly and will surprise you with the EXCELLENT gas mileage especially on long road trips.
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Best bang for the buck by far
Steve, 04/19/2022
updated 04/22/2024
2021 Kia K5 GT 4dr Sedan (2.5L 4cyl Turbo 8AM)
0 of 0 people found this review helpful
Looks great drives amazing. There's plenty of power in the GT to make a grown man smile everytime you hit the gas. The GT is a completely different car than the other K5 models its worth the price to add the GT1 package, the Dual clutch transmission it fast and performs well (most of the time) it's a little slow engaging from a stop at times. Snow driving is dangerously poor with the factory installed Pirelli p-zeros. Expect to buy new tires in under 10k miles.
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Decent bang for your buck
Mr. Reed, 06/10/2022
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
I traded in my 2020 Challenger RT 6-speed manual to get this for my wife. I miss my RT, but this a much better multi-purpose family vehicle. It's not the fastest, but it's not a slug either. We didn't by it for speed. It's comfortable with tons of bells and whistles. The infotainment was buggy initially, but some software updates fixed that. We expected so little issues like that since this is an all new vehicle/year. I only have one con so far. 1- The car has 20,000 miles on it and still smells like anti-freeze. I've seen tons of similar complaints and am hoping that the issue is just a bad coolant reservoir that the dealer will find and replace at my appointment next week
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Amazing car, that offers an awful lot for $30,000
Michael Boldt, 10/14/2022
2021 Kia K5 GT-Line 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
In my opinion the only trim level to buy in the K5 is the GT line. It offers and 1.6 L four-cylinder turbo charged GTI engine that will most definitely wow are you Kia has really stepped up their game every year as they said they would The K5 GT line turbo only puts out 180 hp but it is so turkey that it feels like it’s putting out about 260 horse I kid you not in the cabin is quite quiet. The looks are amazing this is a very good looking automobile from any angle you look at it . Oh let me not forget to mention the Electric panoramic moonroof, Then there is the whole list of standard features from the K5 such as lane keep assist Blindspot warning and Blindspot lane keep assist, pedestrian warning and assist. collision warning, and mitigation system.. and guess what it works I’ve had my K53 weeks and I’ve been cut off twice and had the full hit the brakes on me after cutting me off all the warning engaged immediately as did the crash medication system it actually beat me to the brake pedal and engaged. I truly don’t think there’s a car in its class that can stand with it due to its luxe, performance, and value for the money. This is truly an awesome car
Performance plus luxury makes Kia K5 GT a great va
Dan Carazo, 12/24/2022
2021 Kia K5 GT 4dr Sedan (2.5L 4cyl Turbo 8AM)
0 of 0 people found this review helpful
I waited over 6 months for the new K5 GT to arrive on Long Island. And it was worth the wait. My GT is the finest car I've owned. My heavy foot loves the 290 horses. But I wanted more luxury comforts and Kia's design team included creature comforts and tech features found in cars costing $10,000 more from other automakers. I test drove many sporty sedans before checking out Kia's replacement for the 2012 Optima I owned. But when I visited dealers none had the K5 GT which I had read about. Initially I drove the 2021 K5 GT-Line. Nice ride. Nicely designed interior. Good driver seat and visibility. But where was the 290-HP turbo powerplant? There wasn't a single GT available on Long Island. 6 months later, one of the Kia dealers I had visited sent me a text with a photo of a automobile carrier trailer truck... Loaded on that truck was one new Kia5 GT! The salesman asked if I was still interested. I was in his driveway early the next morning. There was my ideal ride! In Wolf Gray. All 290-HP with moonroof, heated and cooled power front seats, a ton of safety sensor bells and whistles, great handling, a controlled and quiet ride. And the acceleration! This car is front wheel drive and the power can propel you 0 to 70 in a few seconds. Comes in handy on my trips between New York and my family in North Carolina. I really appreciate the GT's ability to sprint past trucks or merge on to highways effortlessly. And even on long trips this Kia rocket is super comfortable and the navigation system along with connectivity with my Android phone make it a snap to get where I need to go, and make or receive hands-free phone calls. The icing on the cake is Kia's value proposition. My K5 GT saved me $10K to $12K compared to the Genesis G70, my 2nd choice, or the Alfa Romeo, or the BMW I checked out. I had been impressed with my 2012 Kia Optima Turbo. It was a good car. The K5 GT is an exceptional vehicle. And thus far I have had zero problems or complaints, needing only oil changes and tire rotations.
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Excellent car
Enis E, 12/29/2022
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Stylish, loaded with features. Quiet ride with an amazingly higher than Kia listed highway mileage: 40mph Lots of interior space. Large trunk.
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SPORTY AND ROOMY
Den Bure, 02/08/2023
2021 Kia K5 LXS 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
I like the service, the sporty appearance and the value for the price. It has served me well. I would get the 2023 but they cut down on the models and increased the price. Thus, one can only the GT line I think.
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Better than we would have thought
Mm, 03/22/2023
2021 Kia K5 LX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
We bought a 2021 k5 lx (base) model in june of 2021. We are now around 23000 miles with no issues at all. It really has been a great car for us. We have been abpe to fit 2 car seats and a booster at the same time in the back when needed. The gas milage is great and when the weather and traffic are just right, i get over 50 mpgs on my 30 mile commute. The little turbo-charged engine has plenty of get up and is rather peppy when needing to speed up or merge into traffic. The cabin has a great asthetic feel although the materials are mostly hard plastic. (Didnt expect much from a base model) The 2021 has wireless android auto which is great, especially because the dealer told us it was by wired connection only. I have driven on many long distance trips, and this car rides smooth and straight and at over 90mph.
Badass
Slim, 05/20/2023
2021 Kia K5 GT-Line 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Love the way it drives the inside is spacious
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Luxury and sporty car with modern young styling
K5 gt line enthusiastic fan, 06/02/2023
updated 06/09/2025
2021 Kia K5 GT-Line 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Great ride and handling and super appearance package in and out . Love my car This car sits almost as low as a Corvette.So its hug the streets at a low level for great cornering.
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K5 GT Line Review
Dr. T, 06/28/2023
2021 Kia K5 GT-Line 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Love the car! Great gas mileage up to 42 mpg highway. Sporty looking and stylish! 1.6l turbo has great pickup. Only complaint was SiriusXM was not built in. Didn’t realize that when I bought it and failed to ask. Other than that no issues. Has Apple Car Play and Android Auto.
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K5
Vic T, 08/20/2023
2021 Kia K5 GT-Line 4dr Sedan AWD (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Love it
Worst Financial Decision Ever Made.
Zachary Rodriguez, 08/27/2023
2021 Kia K5 LXS 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Got my 2021 Kia K5 LXS in December 2022 with 54k miles and only gave it one oil change before having to drive 2 states over before my vacation days ended. 1st problem I had along the way is that It has Car play Connectivity Issues. The 2nd problem happened later around 58k miles where the AC kept turning on and off as in not blowing anything at all, later around 59,100 miles AC stop completely and while taking it in to the Dealership they said I need a new engine harness. As I'm still typing this out I am still waiting on a new engine harness. Like Yeah the car is good on gas, storage and everything looks good, its the small little things where it makes the car not good. Like If I'm told that these K5s engine harness have a engine problem why would I wanna keep driving it. I am Honestly ready to hurry up and pay off this car as a 1st time car buying owner and go back to a Jeep Wrangler. It's like what the song said from Gives you Hell "Where's that shiny car, Did it ever get you far" What I mean by this is that I am ready to sell it. cause it is really a headache to have a 2 year old car with AC problems already. Simple maintenance as in Oil changes and brake changes are pretty easy if you know how to do that but if your a type of mechanic that knows how to repair a whole entire engine than of course your gunna know how to fix most or every car that you have.
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Love Love Love This Car!
Karen D, 09/17/2023
2021 Kia K5 LXS 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
I love the styling and how the headlights look like lightning bolts. I also LOVE all the safety features! My husband wanted me to have them and I was like "ehh" at first, but now that I have them, I don't want to be without them. Before this I had a KIA Optima for 14 years. Can't go wrong with KIA.
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The perfect blend of sporty and comfort!
Monique R, 01/08/2024
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
I LOVE THIS CAR. My favorite things about it are the sporty sleek design, the bucket inspired seating makes long car rides soo much more enjoyable, the gas mileage is good, and the handling on this thing is insane. A few things I think KIA could've done better is standard interior lighting, heated/cooled steering wheel, and the option of having the entire cabin be black instead of those beige fabric panels. Other than that I have literally no other complaints I love this car so much. It's sexier than most human people!
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Gas saver
Black widow , 02/26/2025
2021 Kia K5 LXS 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 0 people found this review helpful
Car is nice. I’ve had little problems with it since I got it such as the gas tank door wouldn’t open, interior lights wouldn’t come. It’s really good on gas. There is no aftermarket remote start for it, so make sure if you want that feature you get the model with it.
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Great car
W.T.Lambert, 10/22/2021
2021 Kia K5 EX 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 2 people found this review helpful
Excellent auto. In and out.
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Drivers side headlight problems
Tip, 02/24/2021
updated 09/08/2022
2021 Kia K5 GT-Line 4dr Sedan (1.6L 4cyl Turbo 8A)
0 of 3 people found this review helpful
Car is great, however; driver headlight veers off to left with a distinct V shape that is void of light and light isn't adjustable.Dealer is trying to resolve, but no luck yet
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Loved my K5
Big Tex , 06/27/2022
2021 Kia K5 GT-Line 4dr Sedan AWD (1.6L 4cyl Turbo 8A)
0 of 1 people found this review helpful
This is a very sporty car. Get pickup speed lots of safety features great styling