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Hyundai · Known Issues

2014 Hyundai Equus Problems: 4 Known Issues

2014 model year · 250+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 250+ owner reports, the 2014 Hyundai Equus has 4 documented known issues, with 2 rated critical. The most serious are Rear Air Suspension Strut Leak and Compressor Failure ($800-$3,000 repair) and Electronic Parking Brake Actuator Failure ($400-$1,200 repair). Across all issues with published estimates, repair costs range from $100 to $3,000. DIY maintenance guides at au7o.io.

In This Article

  • Equus Suspension1
  • Equus Brakes1
  • Equus Engine1
  • Equus Electrical1
  • Recalls2
  • FAQ
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In This Article

  • Suspension1
  • Brakes1
  • Engine1
  • Electrical1
  • Recalls2
  • FAQ

All 4 Known Issues

Filter:
ALL YEARS201620152014201320122011
Community reported
95 owners

On the 2011-2016 Hyundai Equus, the Hyundai Equus flagship sedan uses rear air suspension for luxury ride quality. The air struts develop leaks at the rubber air bladder, particularly at the crimp ring seals, typically after 5-7 years regardless of mileage. The air compressor runs excessively to compensate for leaking struts, leading to compressor overheating and premature failure. The vehicle sags at the rear when parked overnight as air slowly escapes.

This issue also affects: Genesis G70, Kia K900, Kia Rio

Common Symptoms

  • Vehicle rear end sags after sitting overnight
  • Air compressor running constantly (humming from trunk)
  • Suspension warning light on dashboard
  • Bouncy or floaty rear end ride quality
  • Rear of vehicle lower than front when parked

How to Fix

Replace both rear air struts together — Arnott A-2951 or Suncore 150G-75-R are quality aftermarket options at 50% less than OEM. Replace the compressor if it is running constantly or making excessive noise. A conversion to passive coil spring struts is possible using Strutmasters or Arnott coil-over conversion kits, though this changes the ride character. The compressor relay should be checked first as a $20 relay failure can mimic compressor failure.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Suncore 380H-15-R-PAIR rear air-spring pair
    OEMSuncore 380H-15-R-PAIR

    matched left/right rear air-spring replacement after leak testing proves one or both rear springs leak Fitment/availability: 2011-2016 Hyundai Equus with factory electronic air suspension. Pair contains left 380H-15-RL and right 380H-15-…

    Suncore Industries

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipCheck the compressor relay first ($20 part) before replacing the $500+ compressor — a stuck relay is the cause in about 25% of cases
  • WarningReplace BOTH rear air struts together even if only one is leaking — the other is the same age and will fail within months
Typical repair cost:$800 - $3,000

Research This Issue

Based on 95 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Low Confidence95 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
Community reported
75 owners

On the 2011-2016 Hyundai Equus, the Equus uses an electronic parking brake (EPB) system with electric motor actuators on the rear calipers. The actuator motors can fail from corrosion or internal gear wear, leaving the parking brake stuck engaged or unable to apply. When the actuator fails in the applied position, the rear brakes drag, overheating the pads and rotors. The EPB system also requires a special scan tool to retract the calipers during brake pad replacement — standard caliper compression will damage the actuator.

This issue also affects: Kia Forte

Common Symptoms

  • Parking brake warning light stays on
  • EPB malfunction warning on dashboard
  • Rear brakes dragging (hot wheels, burning smell)
  • Parking brake does not hold on hills
  • Grinding noise from EPB motor when applying/releasing

How to Fix

Replace the failed EPB actuator motor (integrated into the rear caliper assembly on some years). A Hyundai-specific scan tool or GDS is required to cycle the EPB actuator during brake pad replacement. Some aftermarket scan tools (Autel MaxiSys, Launch X431) support Hyundai EPB functions. Never attempt to manually force the EPB piston back — use the scan tool retract function only.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Hyundai 59700-3M900 electronic parking-brake actuator/module
    OEMHyundai 59700-3M900

    central EPB actuator/module replacement after EPB scan data and circuit/cable testing confirm internal actuator failure Fitment/availability: 2011-2013 Hyundai Equus, DOHC MPI/GDI sedan, as cataloged. Confirm VIN and original module numb…

    HyundaiPartsDeal
  • Genuine Hyundai 59700-3N600 electronic parking-brake actuator/module
    OEMHyundai 59700-3N600

    later central EPB actuator/module replacement after EPB scan data and circuit/cable testing confirm internal actuator failure Fitment/availability: 2014-2015 Hyundai Equus DOHC GDI sedan per the retailer catalog. Confirm VIN and original…

    HyundaiPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipA scan tool with Hyundai EPB function is REQUIRED for routine brake pad replacement — the rear calipers cannot be compressed mechanically without damaging the actuator
  • WarningNever use a C-clamp to compress the rear brake caliper piston — this will strip the EPB actuator gears and require a $600+ caliper replacement
Typical repair cost:$400 - $1,200

Research This Issue

Based on 75 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Low Confidence75 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
Community reported
80 owners

On the 2011-2016 Hyundai Equus 5.0L Tau V8, the 5.0L Tau GDI V8 in the Equus develops a timing chain rattle on cold start that lasts 1-5 seconds before oil pressure builds and the hydraulic tensioners take up chain slack. The issue is caused by the hydraulic chain tensioners bleeding down oil overnight, allowing chain slack at startup. While the rattle typically goes away quickly, prolonged operation with rattling chains can cause chain guide wear and eventual timing chain stretch. Extended oil change intervals (beyond 5,000 miles) exacerbate the issue.

This issue also affects: Hyundai Accent, Hyundai Azera, Hyundai Elantra

Common Symptoms

  • Rattling or clattering noise for 1-5 seconds on cold start
  • Noise comes from front of engine (timing cover area)
  • Noise disappears after engine warms up
  • Rattle worsens in cold weather
  • Check engine light with cam/crank correlation codes (advanced wear)

How to Fix

Change oil every 5,000 miles (not 7,500 as recommended in some manuals) with 5W-30 synthetic that maintains viscosity at cold temperatures. If the rattle persists beyond 3-5 seconds, replace the primary timing chain tensioners with updated Hyundai parts. The Tau V8 uses four timing chains (two primary, two secondary) — inspect all tensioners and guides during replacement. Some owners install one-way check valve oil drain back fittings to prevent tensioner bleed-down.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Hyundai 24410-3F401 timing-chain tensioner assembly
    OEMHyundai 24410-3F401

    Confirm VIN, engine and side with the diagra

    HyundaiPartsDeal
  • Genuine Hyundai 24410-3F411 timing-chain tensioner assembly
    OEMHyundai 24410-3F411

    Confirm VIN, engine and side with the

    HyundaiPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipUse a quality 5W-30 full synthetic oil (Mobil 1, Pennzoil Ultra Platinum) and change every 5,000 miles — good oil prevents tensioner bleed-down and chain wear
  • TipIf cold start rattle lasts more than 5 seconds, have the tensioners inspected immediately — prolonged rattle causes chain guide wear that turns a $1,000 repair into a $3,000 one
  • WarningDo not extend oil change intervals beyond 5,000 miles on the Tau V8 — the GDI system dilutes oil with fuel, reducing its ability to maintain hydraulic tensioner pressure
Typical repair cost:$100 - $2,500

Research This Issue

Based on 80 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Low Confidence80 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026

On the 2011-2016 Hyundai Equus, multi-way power seat motors fail, particularly on the driver side. The seat memory positions stop storing correctly or the seat moves to incorrect positions. Individual motors (recline, lumbar, tilt) fail independently.

Common Symptoms

  • Seat won't move in one direction
  • Memory positions incorrect
  • Clicking sound from seat
  • Seat moves intermittently
  • Seat stuck in position

How to Fix

Diagnose which seat motor has failed using seat module scan data. Replace individual seat motor or entire seat track assembly. Recalibrate seat memory module after motor replacement. Check seat wiring harness under seat for chafing.

Typical repair cost:$250 - $600

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence
NHTSA Recalls2 recalls

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

Hyundai Motor America (Hyundai) is recalling certain 2011-2015 Elantra, Genesis Coupe, Sonata Hybrid, 2012-2015 Accent, Azera, Veloster, 2013-2015 Elantra Coupe, Santa Fe, 2014-2015 Equus, 2010-2012 Veracruz, 2010-2013 Tucson, 2015 Tucson Fuel Cell, and 2013 Santa Fe Sport vehicles. The Anti-Lock Brake System (ABS) module may leak brake fluid internally and cause an electrical short, which can result in an engine compartment fire while parked or driving.

Campaign #23V65100022/09/2023

VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR

Hyundai Motor America (Hyundai) is recalling certain model year 2012 Genesis vehicles manufactured August 1, 2011, to April 30, 2012, and 2011-2013 Equus vehicles manufactured July 10, 2011, to June 12, 2012. The windshield wiper motor cover seal on the affected vehicles may degrade allowing corrosion on the wiper motor's circuit board. The corrosion can cause intermittent or total loss of wiper function.

Campaign #16V11700029/02/2016

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

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Other Hyundai Models

Hyundai Elantra42Hyundai Sonata31Hyundai Tucson23Hyundai Veloster22Hyundai Palisade19Hyundai Santa Cruz17

Frequently Asked Questions

What are the most common Hyundai Equus problems?

According to Au7o's analysis of 250+ owner reports, the 2014 Hyundai Equus has 4 documented issues. The most frequently reported are: Rear Air Suspension Strut Leak and Compressor Failure, Electronic Parking Brake Actuator Failure, 5.0L Tau V8 Timing Chain Tensioner Rattle on Cold Start. Of these, 2 are rated critical and should be addressed promptly.

Is the Hyundai Equus reliable?

The 2014 Hyundai Equus has 4 known issues documented across 250+ owner reports. 2 issues are rated critical: Rear Air Suspension Strut Leak and Compressor Failure and Electronic Parking Brake Actuator Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Hyundai Equus problems?

Repair costs for known Hyundai Equus issues range from $100 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Rear Air Suspension Strut Leak and Compressor Failure, typically costs $800-$3,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2011-2016 Hyundai Equus Rear Air Suspension Strut Leak and Compressor Failure?

The Hyundai Equus flagship sedan uses rear air suspension for luxury ride quality. The air struts develop leaks at the rubber air bladder, particularly at the crimp ring seals, typically after 5-7 years regardless of mileage. The air compressor runs excessively to compensate for… Repairs typically run $800-$3,000. Severity: high.

What is the 2011-2016 Hyundai Equus Electronic Parking Brake Actuator Failure?

The Equus uses an electronic parking brake (EPB) system with electric motor actuators on the rear calipers. The actuator motors can fail from corrosion or internal gear wear, leaving the parking brake stuck engaged or unable to apply. When the actuator fails in the applied positi… Repairs typically run $400-$1,200. Severity: high.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 250+ owner reports, NHTSA recalls, TSBs, and automotive forums.

What is the 2011-2016 Hyundai Equus 5.0L Tau V8 Timing Chain Tensioner Rattle on Cold Start?

The 5.0L Tau GDI V8 in the Equus develops a timing chain rattle on cold start that lasts 1-5 seconds before oil pressure builds and the hydraulic tensioners take up chain slack. The issue is caused by the hydraulic chain tensioners bleeding down oil overnight, allowing chain slac… Repairs typically run $100-$2,500. Severity: medium.

What is the 2011-2016 Hyundai Equus Power Seat Motor and Memory Position Failure?

Multi-way power seat motors fail, particularly on the driver side. The seat memory positions stop storing correctly or the seat moves to incorrect positions. Individual motors (recline, lumbar, tilt) fail independently. Repairs typically run $250-$600. Severity: medium.