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Watchdog Group Investigating Claims Hyundai Electric Vehicle Losing Acceleration While Driving

Watchdog Group Investigating Claims Hyundai Electric Vehicle Losing Acceleration While Driving

“A preliminary review indicates too much current within the unit can damage transistors, resulting in the inability to recharge the 12V battery.”


The National Highway Traffic Safety Administration (NHTSA) opened an investigation into 40,000 Hyundai Ioniq 5 electric vehicles, the 2022 model, after owners complained of losing acceleration while driving.

What is the possible cause? Too much electricity. From Reuters:

The agency said many consumers reported a loud popping noise followed by a warning displayed on their dashboard, and immediately experienced a loss of power that ranged from a reduction in acceleration to a complete loss.

NHTSA said it learned from Hyundai the failure is related to the Integrated Charging Control Unit (ICCU) responsible for powering both the main electric vehicle and low-voltage 12-volt batteries.

A preliminary review indicates too much current within the unit can damage transistors, resulting in the inability to recharge the 12V battery, NHTSA said.

Thank goodness no one reported crashes or injuries:

One complaint reported a driver traveling 75 miles (120 km) per hour on a highway using advanced highway assist and “the car became completely unresponsive.” The driver added that there was a semi-trailer truck behind him “and one to my right in the slow lane. The car stopped accelerating, and I was unable to resume driving. I was forced to coast to a stop on the side of the highway.”

According to another complaint in February, a driver on a highway in Santa Maria, California, heard a loud pop coming from my car and “within a few seconds my car lost speed rapidly, from 55 mph to 25 then a second later 22 mph.”

I had this problem once in my 2019 Toyota 4Runner, which is not electric. I cannot remember what caused it and am too tired to look it up. I just remember the dealership said it’s rare for it to happen on its own. Usually, it’s caused by an animal, like a squirrel chewing on the wire.


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The Gentle Grizzly | June 20, 2023 at 11:47 am

I’m a bit curious. (“You most certainly are, Bear…!”

Why is an automobile-related article coming up on LI? Are you joining the “let’s bash electric cars like every other conservative site” bandwagon?

Use the “Return” function one day and the control is assumed by AI and as the door locks engage with a resounding clunk the passenger restraint device cinches tight and the destination is set for the closest automated crusher/shredder that feeds the steel mill.

    scooterjay in reply to scooterjay. | June 20, 2023 at 11:55 am

    The truth behind AI is Human action blamed on hypothetical choice which the skeptic views as pinning the tail on the elephant instead of a donkey.

2smartforlibs | June 20, 2023 at 12:16 pm

I was guessing it lost acceleration when you learned how much damage these EVs really do.

E Howard Hunt | June 20, 2023 at 12:34 pm

This Ion car is very stupid. It says right on it that it only has an IQ of 5.

They don’t call them “High and Dry” for nothing.

not_a_lawyer | June 21, 2023 at 1:33 am

I have nothing against EVs in principle. Toys for the well-to-do. Stop with the government rebates and subsidies.

If people believe that EVs are ‘green’ ask them where the electricity that powers them comes from.

The electricity that powers EVs come from fossil fuel power plants. EVs are much heavier than ICE vehicles due to the weight of the batteries. The heavier the vehicle, the more power required to drive them.

The thermodynamic process that goes into the generation of electricity requires a great deal more burning of fossil fuels to power EVs than is required to power ICEs with their own fossil fuel power source.

The only way that a widespread adoption of EVs as a source of locomotion over ICEs without CO2 is the widespread adoption of nuclear power generation. There is simply no way that solar and wind can provide the requisite amount of energy that is required to drive an advanced economy replete with mandatory EVs.

Are any utilities breaking ground to build a new nuclear power plant near you? No? It takes five years to construct one of these power plants, and that is after all of the government regulation paperwork has been approved and the environmentalist’s lawsuits have been adjudicated.

But they tell us that CO2 is an ‘existential threat’. If that were true, the government would be approving the construction of nuclear power plants far and wide, and providing legal immunity to defend against environmentalist’s absurd concerns, and approving of government-backed loans to the utilities.

Is this happening? No it is not. One can only conclude that there is no CO2 crisis, that the threat is not ‘existential’.

I’ve been on this planet for almost sixty years, in mostly similar areas climatologically. It seems pretty much the same now as it was when I was a young child. There is no ‘warming’. If there is ‘warming’ then it is infinitesimal. There is no crisis. If there were a crisis, you would feel it.