HyundaiAccent2018Overview/hyundai/accent/2018/base/

2018 Hyundai Accent

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 Accent.

Body PASSENGER CARTransmission Automatic (S6)

The 2018 Hyundai Accent is a front-wheel-drive passenger car equipped with a six-speed automatic transmission, delivering an EPA-estimated 28 mpg city and 38 mpg highway. While the engine is the most frequently noted area in owner feedback, the model year accumulated just 19 total complaints and one recall, placing it near the lower end of the Accent’s historical complaint range. This modest tally suggests a relatively trouble-free ownership experience for the 2018 model.

Model year202220212020201920182017201620152014

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Lug nut torque79-94 ft-lbsOEM · verified
EPA fuel economy28/38/32 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 47 · 60 O.E. AmpHrs CCA battery, OE oil filter 2630035505. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 47 · 60 O.E. AmpHrs CCAOEM · verified
Tail / brake / turnLAMPOEM · verified
Tire sizeP185/65R15OEM · verified
Wheel / rim5.5; Optional: 6.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter2630035505
Fuel filter31112B1000
Battery37110F9620

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S6)

Dimensions & weight NHTSA vPIC

Overall length172.8 in
Overall width66.9 in
Overall height56.3 in
Wheelbase101.6 in
Curb weight2685 lb
Track (front / rear)59.4 / 60.2 in
Weight distribution (front / rear)61/39

Ratings & economy EPA / vPIC

EPA city / highway / combined28 / 38 / 32 mpg
DrivetrainFront-Wheel Drive
Passenger volume90 cu ft
Cargo volume14 cu ft
Recommended fuelRegular Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the Accent of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

7.5–9.3 sec0–60 mph (tested)quickest 7.50 sec — 2018 SE Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
2018SE Sedan 1.6L I-47.50 sec16.00 sec130 hpFWD
2018Limited Sedan 1.6L I-48.90 sec16.80 sec130 hpFWD
2018Limited Sedan 1.6L I-49.30 sec17.00 sec130 hpFWD
2019Limited Sedan 1.6L I-49.60 sec17.20 sec130 hpFWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

Torque lug nuts to 79-94 ft-lbs. The firing order is 1-3-4-2.

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)5.8-8.7 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)5.8-8.7 ft-lbs
Camshaft Sprocket and/or Gear Bolt(s)47.0 - 54.2 ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)21.7-28.9 ft-lbs
Oxygen (O2S) Sensor Bolt(s)28.9-36.2 ft-lbs
Knock Sense (KS) Bolt(s)13.7-18.1 ft-lbs
Engine Flywheel Bolts53.0-56.0 ft-lbs
Oil Pan to Block Bolts7.2-8.7 ft-lbs

Chassis torques

Lug Nuts79-94 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Curb Idle Speed (No Load)630 rpm
Curb Idle Speed Variance (No Load)100 rpm
Curb Idle Speed (Secondary Under Load)700 rpm
Curb Idle Speed Variance (Secondary Under Load)100 rpm
Spark Plug ManufacturerHyundai
Spark Plug Gap.028 - .031 in
Spark Plug Torque11 - 18 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity.87-.98 lbs.
Oil GroupPAG
Oil Type46
Oil Capacity3.88-4.58 oz.
Standard BCI Group Number47
Standard BCI Cranking Performance60 O.E. AmpHrs cca

Service checks

Fuel Pump Pressure Minimum62.3 psi
Fuel Pump Pressure Maximum68.1 psi
Regulated Fuel System Pressure (With Vacuum)62.3-68.1 @ Idle psi
RPM62.3-68.1 @ Idle rpm

Brakes

Brake Caliper Bolt to Carrier Torque16-23
Brake Caliper Carrier to Hub Bolt TorqueFront: 58-; Rear: 36-
Vented Rotor Minimum Thickness for ReplacementFront: 787; Rear: .331
Variation from Parallelism Thickness Variation.0002
Maximum Rotor Runout.0016

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 2 stages
113.0-16.0 ft. lbs.13–16 ft. lbs
290.0
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
134-38 ft. lbs., Step 2: 38-4234–38 ft. lbs
Main Bearings — tightening sequence 2 stages
113.0-16.0 ft. lbs.13–16 ft. lbs
290.0
Engine Valve Cover Bolts — tightening sequence 1 stages
12.9-4.3 ft. lbs., Step 2: 5.8-7.22.9–4.3 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 97,500 mi; coolant every 30,000 mi. The big-interval services (every 30,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miAir Conditioning System (inspect) · Battery (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Hydraulic System (inspect fluid level) · Clutch Master Cylinder (inspect fluid level) · Fuel Evaporative Canister Filter (inspect) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Filter (inspect)
Every 22,500 miEngine Air Filter Element (replace)
Every 30,000 miEngine Coolant System (drain, flush & refill) · Fuel Line (inspect) · Transmission Assembly (inspect fluid level)
At 60,000 miAccessory Drive Belt (inspect)
Every 60,000 miEngine Valves (inspect valve lash)
Every 97,500 miSpark Plugs (replace)
At 120,000 miEngine Coolant System (drain, flush & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2018 Hyundai Accent presents a notably favorable federal record compared to the surrounding model years. Complaints fell sharply from 67 in 2017 to just 19 in 2018—matching the generation's low point—while recalls remained minimal at one and investigations stayed at zero. By contrast, 2020 and 2021 saw complaints rise again alongside a sharp increase to four recalls per year and one investigation, suggesting emerging issues in later production. The 2018 model's 82 TSBs reflects cumulative service bulletins rather than new problems, and the top complaint area of engine issues (7 of 19 complaints) lacks a clear pattern the data can confirm. Four fire-related complaints appear in the 2018 record, but without recall or investigation data tied to them, the data does not specify a root cause. Overall, 2018 sits at the favorable end of this generation's arc, with the lowest complaint volume and only one recall before the subsequent recall surge. A prospective buyer should verify that the single recall for this model year has been addressed, but based solely on the federal record, 2018 represents a relatively low-risk choice within this generation.

1
Open recalls
NHTSA campaigns
82
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
19
Owner complaints
0 involved a crash · 4 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★
Side★★★★★
Rollover★★★★

Owner complaints filed with NHTSA, by component

All 19 complaints on record, top 8 components.

Engine7
Unknown Or Other2
Structure2
Electrical System2
Service Brakes1
Suspension,Unknown Or Other1
Electrical System,Exterior Lighting1
Service Brakes,Engine,Fuel/Propulsion System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

21V619000Latches/Locks/Linkages:Trunk Lid:LatchReported 06/08/2021

Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Sonata, 2016-2018 Sonata Hybrid, 2018-2020 Accent, and 2016-2017 Azera vehicles. The trunk latch may become damaged, preventing the opening of the trunk… Remedy: Dealers will replace the trunk latch base, free of charge. Owner notification letters were mailed December 4, 2021. Owners may contact Hyundai customer service at 1-855-371-9460…

Technical service bulletins NHTSA · verified

Showing 5 of 82 bulletins on record with NHTSA.

BulletinDateComponentSummary
DTN DL2026-04-10Air BagsThe National Highway Traffic Safety Administration (NHTSA) has identified the presence of…
DTN DCS2026-04-10Air BagsThe National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety…
P33 OL2025-12-19Electrical SystemIn response to this trend, we engineered a software upgrade that addresses the social…
25-01-089H TSB2025-12-15Electrical SystemThis bulletin provides the service procedure for installation of a key cylinder…
25-01-089H DN2025-12-15Electrical SystemIn addition to the Anti-Theft software provided under Service Campaign 993 (TSB…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Accent. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

Does the 2018 Accent have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Accent get?

EPA figures are 28 city / 38 highway / 32 combined mpg.