Free used car buyer guide / NE / E-GMP / 2022-2025
Hyundai Ioniq 5 common problems and best years
By BYBA Research - how we score cars
Updated 2026-06-12
BYBA Buy Score
7.7/10
1 walk-away risk, 7 minor faults documented for this generation, weighted by severity and repair cost. Biggest factor: iccu failure and 12v discharge. Score methodology.
The Ioniq 5 is still one of the strongest used EV buys because the basic E-GMP battery, charging speed and cabin packaging are excellent, but a cheap 2022-2024 car can hide a very expensive low-voltage charging fault. The traps to name before viewing are ICCU failure and repeat 12V collapse, Level 2 charge-port overheating at 40-48 A, early shift-by-wire rollaway software, brake-light/i-Pedal logic that needed the 9A1 VCU update, and heat-pump or coolant-service neglect on high-mileage cars. The safest target is a 2024 or 2025 AWD or RWD car with Campaign 272/025G, Service Campaign 9B5 and VCU 9A1 shown on the dealer history, plus no repeated 12V replacements. Owners should treat any 12V warning, interrupted AC charging or "check electric vehicle system" message as a reason to scan the car now, not after the next failed start.
Faults covered
8
Highest risk
ICCU failure and 12V
Best years
2024-2025
Best buys
- 2024-2025 cars with ICCU Campaign 272/025G completed after the November 2024 expansion.
- RWD 77.4 kWh cars on home Level 2 charging, no tow history, no 12V replacement pattern.
- AWD Limited/Ultimate only when heat pump, V2L and charge-port tests all work during the viewing.
Inspect hard
- Any 2022-2024 car: verify ICCU inspection, fuse result, and software version by VIN.
- AC charge inlet after 20-30 minutes at 40 A or 48 A; throttling to low current is a price issue.
- 12V battery age and state of health; a fresh 12V can hide an unresolved ICCU.
Avoid
- Cars with repeated 12V batteries and no ICCU replacement approval.
- Any seller who says the charge-port overheating is only the wallbox without proving it on another EVSE.
- Open Campaign 228 rollaway or 9A1 brake-light/EPB logic on a 2022 car.
Next checks
Before you contact the seller
Check the car's history first. Then bring the right tools if it still looks worth viewing.
Primary next step
Check history, title, and recall status
The faults above matter more if the car also has accident history, finance flags, missing service records, or open safety recalls.
Viewing kit
Bring the right tools
Four cheap tools catch most of the faults on this page at a Hyundai Ioniq 5 viewing.
Printable workflow
Take the inspection pack
The PDF is the ordered checklist for the viewing: documents, walk-around, test drive, and scan.
Open PDF optionSome links here are partner links. If you buy through one, BYBA earns a commission. The price you pay does not change. How we make money.
Engines and trims
Which Hyundai Ioniq 5 should you buy?
On most used cars, the engine and trim choice changes the risk more than the mileage does. Narrow this down before you start viewing cars.
58 kWh Standard Range
2022-2024 in selected markets
GOOD URBAN BUY
The small pack has less range but the same 800 V architecture and a lower purchase price. It is a sensible commuter pack if the car will live on home AC charging. It is not the pack for cold motorway use, because winter range and charging-stop planning become the ownership story.
72.6 kWh Long Range
2022 early global production
ACCEPTABLE WITH HISTORY
Early European and Korean cars used the smaller long-range pack before the 77.4 kWh pack became common. The pack itself is not the headline risk; the car around it is early-build E-GMP, so software campaigns and charge-port behavior matter more than nominal capacity.
77.4 kWh Long Range RWD
2022-2025
BEST BALANCE
RWD Long Range gives the best mix of range, efficiency and mechanical simplicity. It avoids the front drive motor and front reduction gear of AWD cars while keeping the high-speed DC charging that makes the Ioniq 5 special. A clean RWD with updated ICCU software is the safest private-buyer configuration.
77.4 kWh Long Range AWD
2022-2025
BUY AFTER SYSTEM TESTS
AWD is quick and useful in winter markets, but it adds a front motor, inverter and more heat-pump dependency. Buy it for traction, not just acceleration, and spend the inspection time on coolant behavior, front-axle noise and winter HVAC output.
84 kWh N / late update pack
2025 Ioniq 5 N and later refreshed cars
SPECIALIST BUY
The N is a different ownership case: bigger pack, track software, higher brake and tyre load, and a left-foot-braking software recall on early cars. It can be brilliant, but do not value it using normal Ioniq 5 commuter logic.
Year notes
Year-by-year buyer advice
Use this to narrow the search before you spend time travelling to view a car.
2022
Launch year in most markets. 58 kWh, 72.6 kWh and 77.4 kWh combinations depending on region; early E-GMP software and the first shift-by-wire rollaway recall population.
Buyer: Buy a 2022 only with completed Campaign 228, ICCU recall paperwork, and VCU 9A1. Early cars are good value, but missing software history should be priced like a fault.
Owner: Do not ignore small low-voltage symptoms. A 2022 that has not had the later ICCU recall should be booked in even if it had the earlier service campaign.
2023
77.4 kWh pack becomes the normal Long Range specification in more markets; battery preconditioning and infotainment updates improve road-trip use.
Buyer: A 2023 is often the best depreciation play, but check whether battery preconditioning is actually enabled and whether AC charging derates at home-current levels.
Owner: Keep the VCMS and VCU campaigns current. If you rely on scheduled overnight charging, confirm the car completes a full session after updates.
2024
ICCU recall expansion and AC-charge software campaigns dominate the service story. Minor equipment changes vary by market.
Buyer: Do not assume a late registration avoids ICCU work. VIN-check the campaign status and look for a recall date after the late-2024 expansion.
Owner: If the dealer only updated software, monitor 12V voltage for the next month. A weak 12V can fail after the root cause is repaired.
2025
Refreshed trims and Ioniq 5 N broaden the range; some markets move to larger pack and NACS/port updates outside the original launch package.
Buyer: The safest normal purchase is a non-N 2025 with no early service drama. Treat the N as a performance EV that needs brake, tyre and software history.
Owner: Keep records from the first dealer visit. Early refreshed cars often collect software campaigns; clean paperwork protects resale.
Common problems
Faults to check before buying
What fails, what it looks like, what it costs, and the quick checks you can do at the viewing - ranked by how badly each one can hurt you.
Fault 1
ICCU failure and 12V discharge
Affects
2022-2024 Ioniq 5 most directly; always VIN-check 2025 cars for related E-GMP campaigns.
Symptoms
12V dead after parking, repeated jump starts, warning chime followed by reduced power, charging-system warnings, dealer replacing the 12V more than once.
Typical repair cost
Recall repair free if covered; out-of-warranty ICCU/fuse work can exceed EUR 1,500-3,000.
Codes / scan clues
Dealer GDS codes vary; look for ICCU, LDC, low-voltage and P1A-series high-voltage charging faults.
Root cause: The ICCU can be damaged by electrical and thermal stress, then stop charging the 12V battery correctly. The low-voltage system dies before the traction battery is empty.
Quick check
- VIN-check Campaign 272/025G and ask whether the ICCU was physically replaced.
- Read the 12V battery date; a very new battery is evidence, not reassurance.
- Scan before and after a 20-minute drive for low-voltage or ICCU history codes.
- Ask for tow, no-start and battery invoices from the Hyundai app/service file.
Buyer note
Walk away from repeat 12V failures unless the ICCU and fuse were replaced under recall and the car has since completed several normal charge cycles.
Owner note
After recall work, replace any 12V battery that has been deeply discharged multiple times. A damaged auxiliary battery can make a repaired ICCU look bad.
Fault 2
Level 2 charge-port overheating and AC charge throttling
Affects
2022-2024 cars used on 40 A or 48 A home EVSE; some 2025 cars should still be tested.
Symptoms
Charging stops overnight, app says charging interrupted, inlet gets hot, software derates to much lower current.
Typical repair cost
Software campaign is free; inlet/harness replacement can be EUR 500-1,200 if not covered.
Codes / scan clues
VCMS over-temperature and AC inlet temperature faults; often no dashboard DTC remains.
Root cause: Heat builds at the AC charge inlet or connector interface. Hyundai's software remedy keeps charging alive by reducing current, but that can turn a promised overnight charge into a slow session.
Quick check
- Run a 40 A or 48 A AC charge for at least 25 minutes if the seller has access.
- Check whether Service Campaign 9B5 or earlier VCMS AC charging update is recorded.
- Inspect inlet pins for heat discoloration, debris or loose fit.
- Compare EVSE logs with the car app; repeated stop-start cycles are the signature.
Buyer note
Do not accept 'bad wallbox' as the explanation unless the same EVSE charges another EV normally. Use throttling as a negotiation item.
Owner note
Set home charging to 32 A until the inlet and VCMS update are verified. Heat-damaged pins do not repair themselves.
Fault 3
Shift-by-wire parking pawl rollaway software
Affects
Certain 2022 Ioniq 5 vehicles in Recall 228 / NHTSA 22V-324.
Symptoms
No symptom until parked; risk is vehicle movement after Park selection if EPB is not applied.
Typical repair cost
EUR 0 under recall.
Codes / scan clues
SCU software campaign status, not usually a customer-visible DTC.
Root cause: A voltage fluctuation can interrupt the command from the Shifter Control Unit to the parking actuator, leaving Park less secure than the driver expects.
Quick check
- VIN-check NHTSA 22V-324 / Hyundai Campaign 228.
- Verify the EPB auto-applies and releases correctly during the viewing.
- On a slight incline, apply Park and EPB, then confirm no drivetrain clunk or creep.
Buyer note
An open rollaway recall on a 2022 is lazy ownership. Make the seller complete it before sale.
Owner note
Use the EPB every time even after the software update, especially on slopes.
Fault 4
Brake-light and i-Pedal VCU logic before Service Campaign 9A1
Affects
Certain 2022-2023 Ioniq 5 vehicles.
Symptoms
Brake lights not illuminating as expected during some regenerative deceleration, i-Pedal feel changes, EPB behavior not matching later manuals.
Typical repair cost
EUR 0 campaign update.
Codes / scan clues
None expected; this is software logic.
Root cause: Early VCU logic did not always match later expectations for brake-light activation during regen and i-Pedal operation.
Quick check
- Confirm TSB 23-01-067H-1 / Service Campaign 9A1 was applied.
- Have a helper follow the car at walking speed while you lift off in i-Pedal.
- Check EPB auto-engagement behavior after selecting Park.
Buyer note
The fix is simple, but a car missing 9A1 likely missed other E-GMP updates too. Inspect the whole campaign history.
Owner note
Ask for the owner manual supplement if you have a 2022. It explains the changed EPB behavior after the update.
Fault 5
Heat pump, coolant valve or cabin HVAC weakness
Affects
AWD and cold-climate cars with heat pump; symptoms most visible in winter.
Symptoms
Poor cabin heat, slow demist, heat-pump noise, coolant warning, large winter range penalty beyond normal.
Typical repair cost
EUR 200-500 for service/diagnosis; EUR 800-1,800 for pump/valve/heat-pump component work.
Codes / scan clues
HVAC and battery thermal-management codes visible in Hyundai GDS.
Root cause: The EV relies on thermal-management valves and pumps for battery and cabin conditioning. Sticking valves or weak pumps reduce heat delivery and can hurt fast-charge preconditioning.
Quick check
- Start from cold and demand maximum cabin heat; warm air should arrive consistently.
- Set a DC fast charger as destination and confirm battery preconditioning icon/logic if fitted.
- Check coolant levels and service invoices for low-conductivity EV coolant work.
- Scan thermal-management modules, not only the powertrain module.
Buyer note
A cold Ioniq 5 that will not heat properly is not just uncomfortable; it can also fast-charge poorly in winter.
Owner note
Use the correct Hyundai EV coolant and service interval. Mixing ordinary coolant into the low-conductivity loop is expensive.
Fault 6
12V battery state masked by telematics and accessory drain
Affects
All years, worse on cars that sit, run many app wakeups, or already had ICCU trouble.
Symptoms
Dead car after a short park, app stops updating, door handles fail to present, dash wakes slowly.
Typical repair cost
EUR 150-300 for a quality AGM 12V battery; diagnosis extra.
Codes / scan clues
Low-voltage supply and module communication codes.
Root cause: The Ioniq 5 depends on a small auxiliary battery to wake modules and close contactors. Deep discharges from ICCU issues, app wakeups or sitting can permanently weaken it.
Quick check
- Read resting voltage after the car has slept.
- Check battery age, brand and warranty invoice.
- Look for communication codes across multiple modules.
- Ask whether the car has needed a jump start.
Buyer note
A fresh 12V is fine only if the seller can explain why it was replaced. Without that answer, assume it is covering a bigger problem.
Owner note
Avoid repeated remote wakeups when parked for days. If the car sits, check 12V voltage before it strands you.
Fault 7
ADAS sensor, camera and parking-sensor calibration faults
Affects
All years, especially cars with bumper repairs, windscreen replacement or winter road grime.
Symptoms
Forward safety disabled, lane assist unavailable, parking sensor warnings, adaptive cruise unavailable.
Typical repair cost
EUR 100-300 for calibration/checks; EUR 500-1,200 if a camera/radar or harness is damaged.
Codes / scan clues
FCA, SCC, LKA and parking-assist module codes.
Root cause: The car's driver-assistance stack relies on camera/radar alignment and clean sensor data. Small body repairs can leave the system out of calibration.
Quick check
- Check all camera views before the drive.
- Use adaptive cruise and lane centering on a marked road.
- Inspect bumper paint, radar covers and windscreen-camera area for repair signs.
- Scan ADAS modules separately.
Buyer note
ADAS warnings after a bumper repair are not cosmetic. Budget calibration before trusting the car.
Owner note
After windscreen or bumper work, insist on written calibration, not just a cleared warning.
Fault 8
Tyre wear, wheel alignment and AWD front-axle noise
Affects
Heavy AWD trims and cars run on mismatched or cheap tyres.
Symptoms
Inner-edge tyre wear, humming at speed, vibration, pulling under regen or acceleration.
Typical repair cost
EUR 150-250 alignment; EUR 700-1,200 tyres; more if a wheel bearing or drive unit is involved.
Codes / scan clues
Usually none unless wheel-speed sensors or AWD control faults are present.
Root cause: The Ioniq 5 is heavy, torquey and sensitive to tyre quality. AWD cars add front driveline load and expose poor alignment quickly.
Quick check
- Run a hand along inner tyre shoulders.
- Check tyre brand, size and load rating match across the axle.
- Drive at 80-110 km/h and listen for speed-linked hum.
- Accelerate and regen firmly once; note pull or vibration.
Buyer note
Uneven tyres are not just a consumable on an EV. They can hide alignment damage or front driveline noise.
Owner note
Rotate tyres on schedule and keep pressures correct. EV weight punishes lazy tyre maintenance.
Inspection pack
Printable checklist for the viewing
The free page helps you decide whether the car is worth seeing. The paid guide is the ordered, printable checklist you use at the car.
Documents
- Hyundai dealer campaign printout for 228, 9A1, 9B5 and 272/025G.
- 12V battery invoices and any no-start/tow records.
- Home charging history, EVSE amperage and screenshots of interrupted sessions if relevant.
- Battery warranty status and accident/repair history.
Walk around
- Inspect AC charge inlet pins for heat marks and looseness.
- Check tyre inner shoulders and matching load ratings.
- Look for bumper or windscreen replacement that could require ADAS calibration.
- Check underbody panels for impact damage around battery edges.
In the car
- Verify no EV system, 12V, ADAS or parking brake warnings at wake-up.
- Cycle i-Pedal, regen levels, EPB and Auto Hold.
- Run heat and AC from cold, then check app/infotainment response.
Test drive
- Drive with i-Pedal and confirm brake-light behavior with a helper if practical.
- Use adaptive cruise and lane centering on clear markings.
- Listen for front-axle hum or vibration under acceleration and regen.
Scan tool
- Scan ICCU/LDC, VCMS, BMS, thermal management, ADAS and chassis modules.
- Save screenshots of campaign status and historical low-voltage codes.
- Check 12V voltage before and after the drive.
Bottom line
Buy: Choose a 2024-2025 RWD Long Range or a well-documented 2023 that has the late ICCU recall, AC charging update and VCU update completed. The car should complete a high-current AC charge test and show no repeat 12V story.
Avoid: Avoid any 2022-2024 Ioniq 5 with repeated 12V failures, unresolved ICCU status, open rollaway software recall, or AC charging that cannot hold the current you need for home use.
Quick answers
Hyundai Ioniq 5 buyer questions
The short versions of what this page answers in full.
What are the most common Hyundai Ioniq 5 2022-2025 problems?
The highest-impact documented faults are: ICCU failure and 12V discharge; Level 2 charge-port overheating and AC charge throttling; Shift-by-wire parking pawl rollaway software. This guide covers 8 faults in total, each with symptoms, typical repair costs, and checks you can do at a viewing.
Which Hyundai Ioniq 5 years are the best to buy?
2024-2025 stand out in this generation. Choose a 2024-2025 RWD Long Range or a well-documented 2023 that has the late ICCU recall, AC charging update and VCU update completed. The car should complete a high-current AC charge test and show no repeat 12V story.
Which Hyundai Ioniq 5 should I avoid?
Avoid any 2022-2024 Ioniq 5 with repeated 12V failures, unresolved ICCU status, open rollaway software recall, or AC charging that cannot hold the current you need for home use.
Is the Hyundai Ioniq 5 2022-2025 a reliable used buy?
BYBA scores it 7.7/10 (buy with checks). 1 walk-away risk, 7 minor faults documented for this generation, weighted by severity and repair cost. Biggest factor: iccu failure and 12v discharge.
Get updates when this guide changes
Recalls get added, repair costs shift, and new fault patterns show up in the data. Leave an email and we'll tell you when the Hyundai Ioniq 5 guide gets a meaningful revision. Nothing else, no selling your address.
Research basis
- static.nhtsa.gov: RCONL-24V868-8658.pdf
- static.nhtsa.gov: RMISC-24V868-6331.pdf
- static.nhtsa.gov: MC-11008013-0001.pdf
- static.nhtsa.gov: MC-10244987-0001.pdf
- static.nhtsa.gov: RCLRPT-22V324-8424.PDF
- autosafety.org: 2022-hyundai-ioniq-5
- carcomplaints.com: hyundai-level-2-charger-problems-lawsuit.shtml
- hfajustice.com: 2023.08.25-Bright-v.-Hyundai-COMPLAINT.pdf
- hyundai.com: ioniq5Oct2022-present.pdf
- Hyundai Recall 228 bulletin mirror
- Car-Recalls.eu parking brake summary
- Recharged 2022 Ioniq 5 reliability overview
- Reddit Ioniq 5 ICCU/12V thread
- NHTSA recall/TSB lookup for Ioniq 5