Why does my Kia Soul hesitate or slip?
Likely causes, ranked
- IVT belt slippingDealer
- Software needing an updateDealer
- Old fluidShop
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
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Short answer: Some 2020–2023 Souls have IVT hesitation, slipping or surging. Ask the dealer to check for software updates and inspect the IVT under warranty. Keep every repair order.
Symptom: Weak acceleration, rpm flaring without much speed, or a surge at low speed.
What to check first
- Ask a Kia dealer whether any IVT software campaigns are open on your VIN.
- Write down when it hesitates, slips or surges.
- Get transmission codes read.
- Check your powertrain warranty dates.
Likely causes
- IVT belt slipping. Kia's IVT (Intelligent Variable Transmission) is a belt-type CVT. Owners report slipping, surging and failures, sometimes at low mileage.
- Software needing an update. Kia has issued software updates and inspection procedures for some IVT problems. Ask whether any are open on your VIN.
- Old fluid. Fluid won't fix damage, but check the service history.
What it usually costs
Warranty work is covered. These threads didn't post out-of-warranty prices.
Is it safe to keep driving?
Slipping or surging can be risky in traffic. Get it checked soon.
DIY or shop?
Not DIY. Software and IVT work are dealer jobs.
Recalls, bulletins and complaints in plain words
- Related recalls: NHTSA lists these recalls touching this area of the Kia Soul: 23V531000 (2023-2023 model years, power train:automatic transmission:fluid/lubricant:pump). Check your VIN at nhtsa.gov/recalls. If your car is part of this recall, the dealer fixes it for free.
- Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
- NHTSA complaints: 120 keyword-matched complaints for Kia Soul 2020–2023 (of 785 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-08; keywords: IVT, CVT, transmission, hesitation, jerk, slip, surge). This counts complaints that mention these words. It is not a defect finding.
What owners report
- In CVT problems? on Reddit r/KiaSoulClub, Soul owners discussed CVT (IVT) problems on newer Souls.
- In Worried about this IVT Transmission in the 2020 Soul on Reddit r/kia, a 2020 Soul owner asked whether the IVT is reliable.
- In 2020 Kia Soul GT Transmission problem on Kia Soul Forums, a 2020 Soul owner posted about a transmission problem.
- In Tracking IVT and ISG Failures - need opinions on Kia Soul Forums, owners tried to track IVT failures across newer Souls.
Quick tip
Get the complaint on record while you're in warranty.
Vehicle focus: Kia Soul third generation (2020–2023) with the 2.0L engine and IVT. The 1.6T GT-Line uses a dual-clutch transmission.
Safety / mechanic note
Losing power in traffic is dangerous. Verify with a mechanic.
Recalls & service bulletins
No recalls or service bulletins are listed for this page yet.
NHTSA complaints: 120 keyword-matched complaints for Kia Soul 2020–2023 (of 785 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-08; keywords: IVT, CVT, transmission, hesitation, jerk, slip, surge).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.