The 2017 Elantra is a mixed bag—the naturally-aspirated 2.0L is relatively trouble-free, but the dual-clutch transmission models and the 1.6L turbo have earned a reputation for catastrophic engine failures and transmission headaches that can total an otherwise decent commuter car.
Catastrophic Engine Failure (1.6L Turbo)
Occasional · high severity
Typical onset: 60,000-100,000 mi
Symptoms: Metallic knocking or ticking from engine bay, especially on cold starts, Metal shavings in oil during changes, Sudden loss of power, check engine light, oil pressure warning, Seized engine with no warning after oil starvation
Fix: Theta II engine family rod bearing defect leads to spun bearings, scored crankshaft, and grenaded motors. TSB exists but most failures happen outside powertrain warranty. Typical fix is replacement short block or used engine swap (8-14 labor hours). Hyundai extended warranty to 10yr/100k for some VINs but not all—check recall lookup first.
Estimated cost: $5,500-8,500
Dual-Clutch Transmission Judder and Failure (DCT models)
Common · high severity
Typical onset: 40,000-80,000 mi
Symptoms: Shuddering or jerking during low-speed acceleration or in stop-and-go traffic, Hesitation when pulling away from a stop, Transmission slipping between gears or refusing to engage, Burning smell from transmission area
Fix: The 7-speed dual-clutch has a pattern of clutch pack wear and mechatronic unit failures. Hyundai issued multiple TSBs and extended DCT warranty to 10yr/100k, but adaptive learn procedures rarely hold. Clutch replacement runs 6-9 hours; mechatronic unit another 4-6. Many shops won't touch DCT internals—expect dealer pricing or used transmission swap.
Estimated cost: $3,200-5,800
Brake Booster Recall and Power Brake Loss
Occasional · high severity
Symptoms: Hard brake pedal requiring excessive force to stop, Brake warning light illuminated, Hissing sound from brake booster area, Extended stopping distances
Fix: NHTSA recall 20V-584 covers brake vacuum pump failure on certain VINs. If your VIN isn't covered but symptoms match, replacement brake booster and vacuum pump run 3-4 labor hours. Check recall status before paying out of pocket—Hyundai has been expanding coverage on these. This is a safety-critical failure; don't drive if pedal goes hard.
Estimated cost: $800-1,400
Electric Power Steering Motor Failure
Occasional · high severity
Typical onset: 70,000-110,000 mi
Symptoms: Sudden loss of power steering assist, especially at highway speeds, EPS warning light on dash, Steering feels heavy or requires excessive effort, Clicking or whining noise from steering column
Fix: NHTSA recall 20V-336 addresses some EPS failures, but many units fail outside recall scope. Steering motor and control module replacement requires column removal (3-5 hours). Hyundai extended EPS warranty to 15yr/unlimited miles on some VINs—verify before repair. Absolute safety issue when it fails at speed; can cause loss of vehicle control.
Estimated cost: $900-1,600
Transmission Oil Cooler Line Leaks
Common · medium severity
Typical onset: 50,000-90,000 mi
Symptoms: Red transmission fluid puddles under vehicle, Transmission overheating warning on long drives or in traffic, Burnt transmission fluid smell, Low fluid level on dipstick (if equipped)
Fix: Cooler line fittings at radiator corrode or crack, especially in salt-belt states. Lines run along subframe and are exposed to road debris. Replacement involves new lines, fittings, and fresh fluid/filter service (2-3 hours). Catch it early before running the trans dry—low fluid kills the dual-clutch fast.
Estimated cost: $400-750
Premature Engine Mount Failure (All Engines)
Common · low severity
Typical onset: 60,000-100,000 mi
Symptoms: Excessive vibration at idle, especially with A/C on, Clunking when shifting from Park to Drive or Reverse, Engine rocking visible under hood during acceleration, Increased cabin noise and harshness
Fix: Torque mount and passenger-side mount deteriorate faster than expected. Fluid-filled mounts leak and collapse. Replacing all three mounts (upper torque, left, right) takes 2-3 hours. Use OEM or quality aftermarket (Westar, DEA)—cheap mounts fail in under a year. Not urgent but improves drivability significantly.
Estimated cost: $350-650
Owner tips
If buying a 1.6L turbo, insist on complete oil change records and listen for ANY engine knock—walk away if present; these engines fail suddenly and without mercy
DCT models: have trans fluid changed every 30k regardless of 'lifetime fill' claims; fresh fluid buys time but won't prevent eventual failure
Check your VIN against Hyundai's recall lookup and extended warranty programs—engine and DCT coverage has been quietly expanded multiple times
Avoid extended idle time and short trips on turbo engines; the Theta II needs full operating temp and oil flow to survive
The 2.0L naturally-aspirated with conventional automatic is the most reliable combo—boring, but it actually lasts
Buy only if it's a 2.0L with conventional auto and full service records; avoid the 1.6L turbo and DCT like the plague unless you enjoy surprise $6,000 repair bills.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: Standard engine compartment location
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Every control module on the 2017 Hyundai Elantra — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Motor Driven Power Steering Control Unit (MDPS)2.0 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Steering column, integrated with electric assist motor below instrument panel
Telematics Control Unit / Blue Link Module (TCU)1.2 hr R&Rdealer / factory tool +0.5 hrLimited and Sport trims with Blue Link subscription▸ programming details
📍 Behind headliner, above rearview mirror
🔧 Hyundai GDS
⚠️ Requires dealer activation and subscription setup. VIN registration required.
Supplemental Restraint System Control Module / Airbag Control Unit (SRS/ACU)1.0 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Center console tunnel, below center stack behind trim panel
🔧 Autel MaxiSys or Hyundai GDS
⚠️ Crash data clearing required. Battery disconnect 3+ minutes before removal.
Forward Camera Module (FCM)1.0 hr R&Rdealer / factory tool +0.5 hrLimited trim with Lane Departure Warning and Forward Collision Warning▸ programming details
📍 Behind windshield, integrated with rearview mirror base
🔧 Hyundai GDS
⚠️ Camera calibration required after replacement or windshield replacement. Static calibration procedure.
Driver Door Module (DDM)1.0 hr R&Raftermarket tool +0.2 hrLimited trim with power driver seat and memory▸ programming details
📍 Inside driver door, behind door panel
🔧 Autel MaxiSys or Hyundai GDS
⚠️ Controls power windows, mirrors, seat memory. Configuration sync recommended.
Engine Control Module / Powertrain Control Module (ECM/PCM)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
⚠️ Mileage programming required. VIN synchronization mandatory. 7-inch TFT display on Limited and Sport trims.
Audio Video Navigation Head Unit (AVN)0.6 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Center dash, double-DIN mounting location
🔧 Hyundai GDS
⚠️ 7-inch or 8-inch touchscreen with Apple CarPlay/Android Auto. Configuration sync recommended for full integration.
Tire Pressure Monitoring System Receiver (TPMS)0.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Behind center console, near parking brake assembly
🔧 TPMS relearn tool or Autel
⚠️ Sensor ID relearn required. Can be performed with TPMS tool or drive procedure.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Hyundai Motor America (Hyundai) is recalling certain 2017 Elantra vehicles. The affected vehicles may have a damaged Electronic Power Steering (MDPS) connector resulting in a loss of electric power steering assistance.
Consequence: Loss of power steering assist would require higher steering effort, especially at lower speeds, which may increase the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the EPS motor, free of charge. The recall is expected to begin April 28, 2017. Owners may contact Hyundai customer service at 1-800-243-7766. Hyundai's number for this recall 161.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC · 17V063000
2017-01-26
Hyundai Motor Company (Hyundai) is recalling certain 2017 Elantra vehicles. In the affected vehicles, the brake booster may fail, resulting in a loss of power brake assist.
Consequence: A loss of power brake assist can lengthen the distance needed to stop the vehicle, increasing the risk of a crash.
Remedy: Hyundai has notified owners, and dealers will replace the brake system booster assembly, free of charge. The recall began on February 6, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 157.
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE · 16V956000
2016-12-30
Hyundai Motor Company (Hyundai) is recalling certain model year 2017 Hyundai Elantra vehicles manufactured April 15, 2016, to September 13, 2016, and Sonata vehicles manufactured May 27, 2016 to September 16, 2016. In these vehicles, the end seal for the driver's frontal air bag inflator may not have been properly installed, possibly resulting in reduced inflation of the frontal air bag in the event of a crash.
Consequence: In the event of a crash, an air bag that does not inflate fully increases the risk of injury.
Remedy: Hyundai will notify owners, and dealers will replace the driver's frontal air bag module, free of charge. The recall began February 13, 2017. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 156.
AIR BAGS:FRONTAL · 16V232000
2016-04-21
Hyundai Motor Company (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 29, 2014 to February 11, 2016, 2017 Elantra vehicles manufactured January 12, 2016 to February 22, 2016, and one 2016 Sonata Hybrid vehicle manufactured October 15, 2015. In these vehicles, the driver's frontal air bag may be missing a chemical enhancer required for the second stage air bag deployment, resulting in the second stage not deploying in certain crashes. The primary stage will deploy as intended.
Consequence: An air bag that does not inflate increases the risk of injury.
Remedy: Hyundai will notify owners, and dealers will replace the driver's frontal air bag module, free of charge. The recall began on May 5,2016. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 144.
Wiper blades
Spans AD (2017-2020) and CN7 (2021-2024) generations; 2021+ uses 28/16 inches. Using 2017-2020 spec as more likely interpretation
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2017 Hyundai Elantra 2.0L I4 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.