Launched back in 2016, the Kia Niro is currently one of the only models to offer three electrified powertrains: a conventional hybrid, a plug-in hybrid, and a fully electric, battery driven version. In general, the model has managed to avoid serious issues along its development journey, coming fifth out of 39 cars in its class in a recent What Car? Reliability Survey. That being said, the compact SUV has its weaknesses, particularly the hybrid model.
If you own a Kia Niro hybrid or e-Niro, or you’re looking to buy one, check out our guide to spotting common problems and learn how to resolve them. You can find a wide range of accessories and spare parts for the Kia Niro online.
Common problems with the Kia Niro
Braking problems
There have been some complaints concerning the braking systems on Kia Niro 2017, 2018 and 2019 models. Some drivers reported a sudden and complete loss of braking power and a soft brake pedal. In many cases, the issue is caused by loose brake lines or air in the lines, preventing the fluid from generating enough pressure to engage the brakes. Bleeding the brakes or tightening or replacing faulty parts usually does the trick.
Powertrain/transmission problems (2017-2019 Kia Niro)
There have also been reports of poor acceleration and the car lurching forward when shifting gears. This type of transmission problem is more prevalent in 2017-2019 models and the 2019 Kia Niro plug-in hybrid. This has often been the result of poor tuning rather than defective parts. While most hybrids use an eCVt or CVT transmission, these models employ a six-speed dual clutch transmission, which has different requirements.
Charging problems
As mentioned before, these electric vehicles (EVs) score high in terms of reliability and the battery is fairly low maintenance. However, some hybrid (HEV) users have reported an occasional warning notification that says “check hybrid system” and prevents the car from charging. If there is no determinable cause, the issue can sometimes be fixed by releasing the trigger mechanism under the bonnet. It is best to get it inspected first to make sure there aren’t any hidden problems.
If you’re having problems with charging your e-Niro, it could be due to an overheated or overcharged battery. It is generally recommended to maintain a battery charge of between 30 and 80 percent. You should also check the charging port and charger adapter in your car for damage.
Power relay issues
The power relay was identified as the main weak spot for 2016-2018 models. The manufacturer had to issue a recall in 2019 due to bad connections between the electrical contacts in the main relay. This issue can cause short circuits and even prevent the car from starting. It would cause the contacts to overheat, as well as the rear passenger seats directly above the assembly, posing a fire risk. If you are unsure whether your vehicle was affected, you can contact your local dealer.
Oil leaks
The model’s second recall was in 2018 concerning the clutch actuator on vehicles produced between January and December 2017. The manufacturer found a problem with the inner seal on the hybrid clutch actuator, which allowed oil to leak out of the hydraulic system. This meant that oil could leak onto the actuator’s power electrode, resulting in a short circuit and potentially leading to a fire.
If you spot an oil leak, it goes without saying that you should get your car fixed as soon as possible to avoid accidents and thermal damage. Make sure to check out the model specific oil recommendations before topping up with new Kia Niro engine oil.
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