This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
full bulletin at NHTSA ↗2018 Hyundai Accent engine problems
severe 7 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
7
Recalls
0
Avg fix
$3,100
1fire
1injury
When does it fail?
Of the 7 engine complaints filed for the 2018 Hyundai Accent, here's the actual mileage breakdown — failures cluster heaviest at 125,000-150,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
full bulletin at NHTSA ↗This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps.
full bulletin at NHTSA ↗This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
full bulletin at NHTSA ↗If you are servicing an applicable vehicle with a Check Engine light on and one or more of the DTC listed below, follow the repair procedure and replace the oil pressure harness.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 7 most recent
I have to check my oil every other day. For some reason my car is sucking up all the oil and I don’t believe I should be putting oil in it every other day.
The contact owns a 2018 Hyundai Accent. The contact stated that while driving at an undisclosed speed, the vehicle stalled, with the check engine and the low oil warning lights illuminated. The vehicle was able to be restarted. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 144,801. The…
This car burns through gas at an unbelievable rate. I have read that this is a common problem and Hyundai needs to address the problem - and REPAIR it - for all affected owners. I have about 75,000 miles and the problem has been ongoing for over a year. I have to add oil every week and if I forget, it is all burned up within 2 weeks.
Accelerator pedal that is too sensitive. With the engine running and I start to accelerate from stationary, the accelerator pedal has an initial surge in power that was not intended by user input. This could cause the car to be out of the users control momentarily and could cause an accident if the driver does not allow for this issue. I have run some diagnostic tools on this vehicle and can…
Dealer: coconut creek auto mall 4960 north state rd, coconut creek, fl 33073. I --purchased a new 2018 Hyundai accent on march 15th, the car's motor after several hours started jerking when the car came to a stop, the revolution needled started spiking. The car started to shake. - I returned the march 15th car (1st car)back to the dealer, they gave me another (2nd) new Hyundai accent 2018. We…
Excessive oil consumption = engine failure + no warranty honorer
My 2018 Hyundai Accent had to recalls when purchased with a auto loan January 2021, In June 2021 the vehicle caught fire and exploded in the motion. Vehicle had been serviced for brake rear drums, 2 diagnostics before June. Fire department ruled fire as electrical.
Had engine trouble with your 2018 Hyundai Accent?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2018 Hyundai Accent?
It's a meaningful issue. 7 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Based on the 7 complaints filed, engine issues most often appear around 144,801 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Hyundai/Accent.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.