Is the 2018 Hyundai IONIQ HYBRID reliable?

The 2018 Hyundai IONIQ HYBRID has 18 complaints filed with NHTSA (0.6x the segment average). Our reliability verdict: excellent. Most common issue: OTHER problems.

What are common problems with the 2018 Hyundai IONIQ HYBRID?

Top problems: OTHER (3 complaints, avg repair $500); ELECTRICAL (3 complaints, avg repair $500); ENGINE (3 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2018 Hyundai IONIQ HYBRID?

Yes, there are 2 recall(s): HYBRID PROPULSION SYSTEM: INVERTER, HYBRID PROPULSION SYSTEM: INVERTER. Contact any Hyundai dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to insure a 2018 Hyundai IONIQ HYBRID?

Estimated US average full-coverage insurance for the 2018 Hyundai IONIQ HYBRID is approximately $1,607/year (sedan-midsize class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2018 Hyundai IONIQ HYBRID

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2018 Hyundai IONIQ HYBRID has 18 owner complaints filed with NHTSA — that's 0.6x the segment average of 32. The most common issue is other problems (17% of all complaints), specifically: clicking noise coming from the bottom of the engine every time the brake pedal is depressed. sometimes the clicking noise will continue after the car has been parked and locked. the first time the clicking started, i parked my car and a warning "check brake system" appeared briefly in my dashboard. There are 2 recalls issued for this model year.

1 crash report

Total Complaints

Recalls Issued

—/5

Safety Stars

0.6x

vs Segment Avg

Known Problems(top 5 of 8)

OTHER

3 complaints

17%

• CLICKING NOISE COMING FROM THE BOTTOM OF THE ENGINE EVERY TIME THE BRAKE PEDAL IS DEPRESSED. SOMETIMES THE CLICKING NOISE WILL CONTINUE AFTER THE CAR HAS BEEN PARKED AND LOCKED. THE FIRST TIME THE CLICKING STARTED, I PARKED MY CAR AND A WARNING "CHECK BRAKE SYSTEM" APPEARED BRIEFLY IN MY DASHBOARD
• MANY ISSUES: 1. GETS STUCK IN PARK. 2. BACK UP CAMERA FUZZY EVEN AFTER CLEANED. 3. APPLE CAR PLAY DROPS OUT. AND OR SWITCHES FROM TO CURRENT PHONE CALL. 4. TIRE PRESSURE SYSTEM IS MESSED UP. THE TIRES SYSTEM DOESN'T TELL YOU WHEN THE TIRES ARE BELOW 30LBS. THESE ARE JUST A FEW ISSUES.
• VEHICLE BATTERY IS DEPLETED AND NEEDS SERVICING OR REPLACEMENT.

Typical onset: 50K miles Est. repair: $500

“CLICKING NOISE COMING FROM THE BOTTOM OF THE ENGINE EVERY TIME THE BRAKE PEDAL IS DEPRESSED. SOMETIMES THE CLICKING NOISE WILL CONTINUE AFTER THE CAR HAS BEEN PARKED AND LOCKED. THE FIRST TIME THE CLICKING STARTED, I PARKED MY CAR AND A WARNING "CHECK BRAKE SYSTEM" APPEARED BRIEFLY IN MY DASHBOARD”

— NHTSA complaint filing

When Problems Appear on the 2018 Hyundai IONIQ HYBRID

Based on 11 owner complaints that included an odometer reading. Median mileage at time of complaint: 3K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (2)

HYBRID PROPULSION SYSTEM: INVERTER05/10/2018

Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Hyundai Ioniq Hybrid and 2018 Ioniq Plug-In Hybrid vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.

Risk: The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.

Fix: Hyundai will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced. These repairs will be performed free of charge. The recall began February 28, 2019. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 178.

Estimated Insurance Cost for 2018 Hyundai IONIQ HYBRID

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,607

Full coverage / month

$134

Liability only / year

$611

vs US avg

-4%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-midsize)0.96x

× theft risk1.00x

× safety rating1.00x

× vehicle age1.00x

= Full coverage estimate$1607

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Hyundai IONIQ HYBRID Service Intervals

Oil change

8K mi / 12 mo

Tire rotation

8K mi

Brake fluid

24 months

Transmission fluid

60K mi

Engine coolant

60K mi

Spark plugs

90K mi

Cabin air filter

15K mi

Engine air filter

30K mi

Differential (AWD/4WD)

60K mi

Turbo engines (1.6T, 2.0T) need premium fuel and more frequent oil (some owners service at 5,000 miles).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Hyundai New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

5 yr / 60K mi

Powertrain

10 yr / 100K mi

Hybrid/EV battery

10 yr / 100K mi

Corrosion (rust perforation)

7 yr / unlimited mi

Roadside assistance

5 yr / unlimited mi

10 years/100K powertrain warranty is transferable only to first purchaser after initial owner

These are the terms for a new Hyundai. If you're buying a used 2018 IONIQ HYBRID, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Hyundai dealer for VIN-specific remaining warranty.

Estimated Repair Costs

OTHER(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

ENGINE(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 18 owner complaints for this specific year, here's what to check or ask about:

☐
OTHER: CLICKING NOISE COMING FROM THE BOTTOM OF THE ENGINE EVERY TIME THE BRAKE PEDAL IS DEPRESSED. SOMETIMES THE CLICKING NOISE WILL CONTINUE AFTER THE CAR HAS BEEN PARKED AND LOCKED. THE FIRST TIME THE CLICKING STARTED, I PARKED MY CAR AND A WARNING "CHECK BRAKE SYSTEM" APPEARED BRIEFLY IN MY DASHBOARD
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: MANY ISSUES: 1. GETS STUCK IN PARK. 2. BACK UP CAMERA FUZZY EVEN AFTER CLEANED. 3. APPLE CAR PLAY DROPS OUT. AND OR SWITCHES FROM TO CURRENT PHONE CALL. 4. TIRE PRESSURE SYSTEM IS MESSED UP. THE TIRES SYSTEM DOESN'T TELL YOU WHEN THE TIRES ARE BELOW 30LBS. THESE ARE JUST A FEW ISSUES.
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: IT BEGAN SHORTLY AFTER I PURCHASED THE CAR IN FEB 2018 WITH THE A/C WORKING ONLY INTERMITTENTLY AND THE SETTINGS ON THE CLUSTER HAVING THE SAME PROBLEM, AND THIS ELECTRICAL PROBLEM ESCALATED INTO A SAFETY ISSUE WHEN ON DEC 6 THE RKE FAILED (BATTERY ON FOB STRONG) AND A RE-START ON CAR DID NOT WORK,
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: THE CAR SHIFTS FROM DRIVE MODE INTO SPORT MODE BY ITSELF WITHOUT THE DRIVER MANUALLY MOVING THE GEAR SHIFT FROM DRIVE TO SPORT. THIS HAPPENS RANDOMLY, BUT ALWAYS WHEN THE CAR IS IN MOTION AND ALWAYS IN A LOW GEAR( USUALLY FIRST GEAR ). IT HAS HAPPENED BOTH WHEN MAKING A TURN AND GOING STRAIGHT AHEA
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 2 recalls have been completed — free at any Hyundai dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)