KiaOptima Hybrid2014Overview/kia/optima-hybrid/2014/base/

2014 Kia Optima Hybrid

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2014 Optima Hybrid.

Body PASSENGER CARTransmission Automatic (AM6)

The 2014 Kia Optima Hybrid is a passenger car that pairs its electrified powertrain with an automatic (AM6) transmission and requires 5.3 quarts of 5W-20 or 5W-30 API oil for servicing. This mechanical combination delivers an EPA-estimated 37 mpg combined (35 city / 38 highway), providing efficient daily transportation. When situated within the model's 2011–2020 reliability arc—which saw complaints fluctuate from a single issue in 2020 to a massive 202 in 2019—the 2014 model's 31 owner complaints and zero recalls indicate a relatively stable year. However, because the engine remains the top complaint area, this model year represents a reliable but not flawless midpoint in the Optima Hybrid's history.

Model year20182017201620152014201320122011

Quick specs

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

Engine oil capacity5.3 qtOEM · verified
Engine oil type5W-20 / 5W-30 APIOEM · verified
Lug nut torque65-80 ft-lbsOEM · verified
EPA fuel economy35/38/37 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 48 · 760 CCA battery. 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 48 · 760 CCAOEM · verified
Tail / brake / turnOFFOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (AM6)

Dimensions & weight NHTSA vPIC

Overall length190.6 in
Overall width72 in
Overall height57.1 in
Wheelbase110.2 in
Curb weight3560 lb
Track (front / rear)62.2 / 62.2 in
Weight distribution (front / rear)60/40

Ratings & economy EPA / vPIC

EPA city / highway / combined35 / 38 / 37 mpg
DrivetrainFront-Wheel Drive
Passenger volume102 cu ft
Cargo volume11 cu ft
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

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

This engine holds 5.3 qt of 5W-20 / 5W-30 API engine oil, DOT 3 · DOT 4 brake fluid. Torque lug nuts to 65-80 ft-lbs. The firing order is 1-3-4-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity8.2
Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity7.5
Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity7.7
Brake FluidDOT 3 · DOT 4
Engine CoolantETHYLENE GLYCOL

Engine torques

Crankshaft Pulley and/or Damper Bolts123-130 ft-lbs
Crankshaft Pulley and/or Damper Bolts123-130 ft-lbs
Engine Flywheel Bolts87-94 ft-lbs
Engine Flywheel Bolts87-94 ft-lbs
Engine Flywheel Bolts87-94 ft-lbs
Intake Manifold to Engine Bolts14-17 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22-25 ft-lbs
Intake Manifold to Engine Bolts14-17 ft-lbs

Chassis torques

Lug Nuts65-80 ft-lbs
Front Wheel Hub159-188 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Ignition Coil Primary Resistance.56-..68 ohms
Ignition Coil Secondary Resistance5950-8050 ohms
Ignition Coil Primary Resistance.59-.68 ohms
Ignition Coil Secondary Resistance5950-8050 ohms
Ignition Timing6, Not adjustable degrees
Ignition Timing Acceptable Variance10 degrees
Ignition Timing Reference RPMIdle rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.15-1.27 lbs
Oil GroupPAG
Oil Type46
Oil Capacity3.04-3.72 oz
Standard BCI Group Number48
Standard BCI Cranking Performance760 cca
Standard BCI Group NumberH6R

Service checks

Regulated Fuel System Pressure (With Vacuum)70.0-75.0 psi
Injector Primary Resistance1.25 @ 68 degreesF ohms
Injector Primary Resistance1.18-1.31 @ 68 degreesF ohms
Engine Compression135-156 PSI. 15 Maximum variation PSI
Engine Compression171-192 PSI. 15 Maximum variation PSI
Engine Compression128-149 PSI. 14 Maximum variation PSI

Brakes

Brake ApplicationWITH FN3 (16 inch) CALIPER PR NOS. 1LH/1ZG
Torque Caliper to Bracket16-23 ft-lbs
Torque to Knuckle58-72 ft-lbs
Torque Caliper to Bracket16-23 ft-lbs
Torque to Knuckle47-54 ft-lbs
Minimum Pad Thickness0.079 in
Minimum Shoe Thickness0.039 in
Brake ApplicationWITH FN3 (16 inch) CALIPER PR NOS. 1LH/1ZG

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
113-16 ft. lbs., Step 2: 9013–16 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
113-16 ft. lbs., Step 2: 9013–16 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
113-16 ft. lbs, Step 2: 9013–16 ft. lbs
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head bolts. Apply Loctite 5900H or equivalent on the front edge of the cylinder head gasket. Both the upside and the down side. Assembly of the cylinder head must be completed within five minutes of applying the liquid gasket compound.

124.0-27.0 ft. lbs.24–27 ft. lbs
290 degrees-95 degrees90 degrees
390 degrees-95 degrees90 degrees
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head bolts. Apply Loctite 5900H or equivalent on the front edge of the cylinder head gasket. Both the upside and the down side. Assembly of the cylinder head must be completed within five minutes of applying the liquid gasket compound.

124.0-27.0 ft. lbs.24–27 ft. lbs
290 degrees-95 degrees90 degrees
390 degrees-95 degrees90 degrees
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head bolts. Apply Loctite 5900H or equivalent on the front edge of the cylinder head gasket. Both the upside and the down side. Assembly of the cylinder head must be completed within five minutes of applying the liquid gasket compound.

124.0-27.0 ft. lbs.24–27 ft. lbs
290 degrees-95 degrees90 degrees
390 degrees-95 degrees90 degrees
Main Bearings — tightening sequence 1 stages
111 ft. lbs., Step 2: 20-23 ft. lbs., Step 3: 120-12511 ft. lbs
Main Bearings — tightening sequence 1 stages
111 ft. lbs., Step 2: 20-23 ft. lbs., Step 3: 120-12511 ft. lbs
Main Bearings — tightening sequence 1 stages
111 ft. lbs., Step 2: 20-23 ft. lbs., Step 3: 120-12511 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 3,000 mi; spark plugs at 105,000 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.

At 3,000 miEngine Oil (drain & refill) · Engine Oil Filter (replace)
Every 5,000 miEngine Oil (drain & refill) · Engine Oil Filter (replace)
Every 7,500 miAccessory Drive Belt (inspect) · Engine Air Filter Element (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate) · Vacuum Line (inspect)
Every 15,000 miAccessory Drive Belt (inspect) · Air Conditioning System (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect)
Every 30,000 miBrake Hydraulic System (inspect fluid level) · Engine Coolant System (drain, flush & refill) · Fuel Evaporative Canister Filter (inspect) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Filter (inspect) · Fuel Line (inspect)
At 60,000 miAccessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)
Every 60,000 miDrive Belt (replace) · Engine Valves (inspect valve lash)
At 105,000 miSpark Plugs (replace)
At 120,000 miHybrid Inverter (drain, flush & refill coolant)

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 2014 Kia Optima Hybrid sits in a relatively favorable position within the generation's complaint and recall arc. After a high of 107 complaints in 2012 and 51 in 2013, the 2014 model year recorded only 31 complaints—a clear downward trend—and it is the first year in the generation with zero recalls. However, the 2014 model also has the highest number of technical service bulletins (162) in the entire record, indicating that while no safety recalls were issued, the vehicle accumulated many known service advisories. Complaints then dropped further to 12 in 2015 and 4 in 2016 before a dramatic spike to 202 in 2019, which suggests that the 2014 model year falls in a relatively low-complaint, zero-recall window but precedes a later surge in reported issues. The top complaint areas for 2014 are engine (8), electrical system (3), and steering (3), with 5 crash and 1 fire complaint on file. Given the absence of recalls and moderate complaint count, the 2014 Optima Hybrid is a reasonable buy if you can verify that the high TSB volume has been addressed through prior service, but the later 2019 spike warns of potential long-term reliability concerns that the data does not explain.

0
Open recalls
NHTSA campaigns
162
Service bulletins
Manufacturer communications
6
ODI investigations
Office of Defects Investigation
31
Owner complaints
5 involved a crash · 1 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★★
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 31 complaints on record, top 8 components.

Engine8
Electrical System3
Steering3
Electrical System,Engine2
Electrical System,Unknown Or Other,Engine2
Unknown Or Other2
Vehicle Speed Control,Engine,Fuel/Propulsion System2
Power Train,Electrical System,Fuel/Propulsion System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 162 bulletins on record with NHTSA.

BulletinDateComponentSummary
PI2104_OWNR_5012026-03-18Electrical SystemPRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2104 FLIGHT 501) - This document is…
PS7972025-12-09Back Over PreventionPITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop…
PI2104_OWNR_4012025-07-15Electrical SystemPRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2104) - This document is the owner…
TSB_TRA046_R52025-04-17Power TrainTECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been…
SC269_OWNR_3012025-03-25Electrical SystemVOLUNTARY SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC269) - This document is the owner…

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 Optima Hybrid. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
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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

How much oil does the 2014 Optima Hybrid take?

5.3 qt of 5W-20 OR 5W-30 API, per the factory manual.

Does the 2014 Optima Hybrid have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Optima Hybrid get?

EPA figures are 35 city / 38 highway / 37 combined mpg.