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Hey do you happen to know which dealership you took this car into? Have you gotten any resolution? I am having the exact same problem with my 2023 Kia Niro and I am scared to drive it. I am talking with the Kia service at corporate but they do not have any record of the issue ever being a problem for others.
 
This happened to me on the freeway about a year ago! I was going about 80 in the fast lane, suddenly no power. I too had to pull over to the side, shut off the car and then restarted the car. Did not have a problem after that. No one has answer. I have a 2023 Kia Niro Hev. I use 89 gas in my car from Costco.
Hey do you happen to know which dealership you took this car into? Have you gotten any resolution? I am having the exact same problem with my 2023 Kia Niro and I am scared to drive it. I am talking with the Kia service at corporate but they do not have any record of the issue ever being a problem for others.
 
Hey do you happen to know which dealership you took this car into? Have you gotten any resolution? I am having the exact same problem with my 2023 Kia Niro and I am scared to drive it. I am talking with the Kia service at corporate but they do not have any record of the issue ever being a problem for others.
Hey everyone.! I have a 2024 Kia Niro , it went completely dead on the road . No lights no nothing, checked every scenero, had to get towed to local dealer, luckily was able to get to shoulder but not completely, no emergency lights or anything. Has anyone have any idea?
Local dealer has NEVER heard of this, can’t seem to find any reason or information. Any ideas please share, oh all the oil changes, and service done by dealer ship,
Thank you in advance

UPDATE!!!!
They say we were running 80% water, 20% fuel. How in the **** does a HEV run over 200 miles the previous day and all of a sudden this happens. Same gas ⛽ n truck daily driver no issues.
No vehicle can run on 80% water, and why did water in tank drain both batteries? Makes no sense. Why wouldn’t a mechanic start with the basic checks then all of sudden oh let’s check fluids!!
They are saying our gas and water no WARRANTY! After two weeks.
 
UPDATE!!!!
They say we were running 80% water, 20% fuel. How in the **** does a HEV run over 200 miles the previous day and all of a sudden this happens. Same gas ⛽ n truck daily driver no issues.
No vehicle can run on 80% water, and why did water in tank drain both batteries? Makes no sense. Why wouldn’t a mechanic start with the basic checks then all of sudden oh let’s check fluids!!
They are saying our gas and water no WARRANTY! After two weeks.
Do you have a garage, or does the car live outside? If you can, extract some fuel from the gas tank, and send it off for testing. Can you go to the station and pump where it was last filled? If so, bring a gas can and put a gallon of "gas" in it. When you get home, shake thoroughly, and pour some fuel into a glass container, then wait to see if anything settles out.

I'm extremely skeptical that this dealer is telling you the truth. More likely, they are trying to avoid a warranty repair. If you have had all maintenance done by the dealer, and have kept the receipts, it's hard to see how they could claim owner negligence. Neglecting to watch the level in the engine coolant reservoir, or failing to check engine oil level might fall in that category. But, short of being immersed in several feet of water for a prolonged amount of time, I can think of no scenario where the gas tank is filled with 80% water and 20% gasoline.

Time to escalate with KIA corporate.
 
UPDATE!!!!
They say we were running 80% water, 20% fuel. How in the **** does a HEV run over 200 miles the previous day and all of a sudden this happens. Same gas ⛽ n truck daily driver no issues.
No vehicle can run on 80% water, and why did water in tank drain both batteries? Makes no sense. Why wouldn’t a mechanic start with the basic checks then all of sudden oh let’s check fluids!!
They are saying our gas and water no WARRANTY! After two weeks.
I agree that no car will run on 80% and that would have nothing to do with both batteries being dead.
Time to try a different dealer.
 
Traded in my 2016 Kia optima hybrid because it would suddenly lose power on freeway. We would get a ‘warning hybrid system failure’ light on dash. But despite multiple dealership visits and even taking a picture of the dash warning, they could never figure it out. So, for that reason, we traded that car in for a new 2023 Kia niro and it’s doing the same thing! No dash warning though. Typically it happens while going freeway speed, and then it suddenly losses power and the gas pedal makes zero difference. For a while we thought maybe it was a glitch from cruise control perhaps switching off. Today, I nearly got hit by two semi’s when I lost power in the passing lane but was able to pull over, shut off engine, then restarted and continued on trip (but stayed in the slow lane). Of course, it’s a weekend, so appreciate any thoughts!
Cindi
When I had mine, the 'dealer (where I bought it)' replace the transmission under warranty... ran fine after that... first dealer replaced a module... did not fix it...
 
Traded in my 2016 Kia optima hybrid because it would suddenly lose power on freeway. We would get a ‘warning hybrid system failure’ light on dash. But despite multiple dealership visits and even taking a picture of the dash warning, they could never figure it out. So, for that reason, we traded that car in for a new 2023 Kia niro and it’s doing the same thing! No dash warning though. Typically it happens while going freeway speed, and then it suddenly losses power and the gas pedal makes zero difference. For a while we thought maybe it was a glitch from cruise control perhaps switching off. Today, I nearly got hit by two semi’s when I lost power in the passing lane but was able to pull over, shut off engine, then restarted and continued on trip (but stayed in the slow lane). Of course, it’s a weekend, so appreciate any thoughts!
Cindi
The very same thing happened to me in my 2023 Kia Niro but at slow speed, trying to accelerate from stop or going up an incline. Car totally lost power. Took it in to dealer. They have had it for two weeks and are "consulting their tech person." What the heck! I am trading it in, reluctantly because of the cost, for a 2025 Kia Niro. Hope I am not making a big mistake. Love to hear about the experience of others with this. I have contacted a lemon law lawyer about it. I think it is a life-threatening issue that Kia absolutely needs to address yesterday!
 
For me it was about 2 days.... but then that was 10 or so years ago...
and it was my only vehicle... so it's not like I could just take it in and drive something else.. 8)

Could be different now... 8)
 
Did you get this resolved? My husband is having the same issue with his Kia Niro 2019 Plug in hybrid when it switches from electric to gas
This thread is about the second generation Niro, 2023 and newer. It there’s no thread about this in the first generation section, please create a thread in the problems and issues section. 😊
 
there seems to be a pattern with loose ground wires doing a number of different things. i had to deal with a stalling issue for a few months and a loose ground wire was the issue after multiple dealership visits and tows.

the service advisor when he fixed mine told me that they had another ground wire issue which would not let the car "turn over" but had infotainment and dash controls.

def would be something to have them look over, especially if they techs are struggling to come up with a solution.
 
loose ground wires doing a number of different things.
The terminology is electrically inaccurate. This is the negative circuit wire. We know that both wires of a circuit, positive and negative for a DC circuit, must be connected clean, dry, and tight. There is no actual ground; nothing connects to the earth like your home wiring does. A car's "ground" does bond the negative to the chassis, but that's still not an actual ground.

So, it is easy to understand why a loose ground wire messes up many things. It is a loose negative circuit wire, and things can't work with that.
 
For what its worth...I had a problem with my Ford Fiesta where it would drop out of cruise in the middle of driving. Turned out it was an improperly crimped lug at the end of a wire. It raised a check engine light but no codes when I got to the dealer. The 2nd time it happened I had them check the codes with the engine still running. Then the found it. Wire harness issues are very difficult to diagnose. Try doing it on a remote radar site on the north slope of Alaska/Canada.
 
@ alisa.strathearn (with apologies to atc 98092).
FWI my 2019 Niro PHEV dash lit up at about the 500 mile mark. At 1st it wouldn't start after I pull over, but after a short wait it was drivable. Final analysis was "bad ground".
 
Traded in my 2016 Kia optima hybrid because it would suddenly lose power on freeway. We would get a ‘warning hybrid system failure’ light on dash. But despite multiple dealership visits and even taking a picture of the dash warning, they could never figure it out. So, for that reason, we traded that car in for a new 2023 Kia niro and it’s doing the same thing! No dash warning though. Typically it happens while going freeway speed, and then it suddenly losses power and the gas pedal makes zero difference. For a while we thought maybe it was a glitch from cruise control perhaps switching off. Today, I nearly got hit by two semi’s when I lost power in the passing lane but was able to pull over, shut off engine, then restarted and continued on trip (but stayed in the slow lane). Of course, it’s a weekend, so appreciate any thoughts!
Cindi
I had a similar problem with a Ford Fiesta. Didn't find any error codes. What I did was take it in when it happened and didn't turn off the car. They then were able to catch the code. It was a connector what wasn't crimped properly so the wire would come loose intermittently. Didn't loose power totally but dropped out of cruise. Hopefully they can case it down, I know its scary.
 
21 - 36 of 36 Posts