2023 Hyundai Ioniq 5
Key Replacement - Save vs Dealer in Ventura County
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2023 Hyundai Ioniq 5
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2023 Hyundai Ioniq 5 Smart Key Replacement - Fast, Affordable & Professional
In Stevens Park, an Ioniq 5 owner learned what happens when the 12V battery gets ignored in an EV.
His smart key worked fine all week. Saturday morning, nothing. "Smart Key not detected" on the dash, doors wouldn't unlock with the handle touch sensors, had to use the hidden key blade like it was 1995. The main battery showed 73% charge, so he figured the fob died.
I checked the obvious first. CR2032 in his 95440-GI050 fob tested at 3.1V, practically new. The problem wasn't in his hand.
Under the hood, the 12V auxiliary battery told the real story: 11.8V. On these E-GMP cars, the smart key system pulls from that little 12V battery, not the big traction pack. Once it drops below 12.3V, the receivers get flaky.
Jump pack on the 12V terminals brought it back to life instantly. Smart key worked, door handles responded, everything normal. I stuck around while he ran the car for twenty minutes to let the DC-DC converter charge the 12V back up.
He'd been to the dealer for a recall last month. They never mentioned checking the 12V battery on an EV. Saved him whatever they would've charged for a new smart key he didn't need.
Save vs the Dealer on Your Hyundai Ioniq 5 Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
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“We had one broken key for our Honda Civic and one working key for our Lexus. Tim came out and cut three remote car keys at a great price. All keys worked perfectly. Professional, courteous, and highly recommended.”
“Tim was GREAT. I honestly swear he must have had my keys made before he even showed up. The entire process was insanely fast, from the initial phone call to having the keys in my hand. No one will beat the pricing, efficiency, or outstanding service.”
“This is the only locksmith anyone should ever call. I am still shocked at how fast he arrived and the price was hundreds less than other quotes I received. Honest, professional, and extremely efficient.”
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