2015 Hyundai Sonata Transmission & Powertrain Problems
NHTSA lists 134 Transmission & Powertrain complaints for the 2015 Hyundai Sonata, 12% of all complaints filed for the year. Median mileage at failure was 50,000 miles. One related recall (14V784000) covers an incorrect left axle shaft on 1.6 liter models built in a specific window.
- Transmission & Powertrain complaints
- 134
- 12% of 1,144
- Crashes reported
- 1
- Fires reported
- 0
- Injuries reported
- 2
- Median mileage
- 50,000 mi
- Related recalls
- 1
Typical transmission symptoms owners report
- Vehicle hesitates or fails to accelerate when the accelerator is pressed, with the engine revving high while power at the wheels lags or drops out, then returns after the pedal is released and the transmission downshifts.
- At low speeds, roughly 5 to 10 mph, the vehicle jerks or shudders during deceleration as if struggling to change gears.
- A transmission temperature warning appears on the display, followed by the transmission failing to shift while rpm climbs and speed stays low.
- Check engine light comes on early in ownership and the car later loses acceleration response, with owners describing the car changing gears on its own.
- Transmission shifts roughly or hunts and stumbles between gears, sometimes downshifting multiple ranges on slight hills.
- Owners report the transmission overheating message appearing repeatedly along with stalling sensations during acceleration and vibration at highway speeds.
When 2015 Hyundai Sonata transmission complaints were filed
First complaint Jan 27, 2015, latest Sep 10, 2026.
Transmission & Powertrain recalls for the 2015 Hyundai Sonata
- NHTSA 14V784000Dec 9, 2014Transmission & Powertrain208 vehicles
Power train:axle assembly:axle shaft
Hyundai Motor America (Hyundai) is recalling certain 1.6 liter model year 2015 Sonata vehicles manufactured August 29, 2014, to October 28, 2014. The affected vehicles may have been assembled with an incorrect left axle shaft which may result in the shaft separating from the transaxle differential.
Risk: If the left axle shaft separates from the transaxle, the vehicle may stop moving, increasing the risk of a crash. Additionally, a separated axle shaft may allow the vehicle to roll away as the driver and other occupants exit the vehicle or anytime thereafter. A vehicle rollaway increases the risk of injury to exiting occupants and bystanders.
Remedy: Hyundai will notify owners, dealers will inspect and replace the axle shaft, as necessary, free of charge. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 126.
Transmission & Powertrain complaints by Sonata model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many transmission and powertrain complaints does NHTSA have for the 2015 Hyundai Sonata?
- NHTSA lists 134 complaints in the Transmission & Powertrain category for the 2015 Sonata, which is 12% of the 1,144 total complaints filed for that model year.
- Is there a transmission recall for the 2015 Hyundai Sonata?
- There is one related recall, campaign 14V784000, but it covers an incorrect left axle shaft on 1.6 liter 2015 Sonata vehicles built between August 29, 2014 and October 28, 2014, not a transmission defect itself.
- At what mileage do transmission problems typically show up on the 2015 Sonata?
- NHTSA complaint data shows a median mileage at failure of 50,000 miles for Transmission & Powertrain issues on the 2015 Sonata.
- Are the 2015 Sonata transmission complaints linked to any crashes or injuries?
- Within this problem area, NHTSA data shows 1 crash and 2 injuries reported, with no fires.
- How does the 2015 Sonata compare to other Sonata years for transmission complaints?
- The 2015 model year's 12% share of complaints tied to Transmission & Powertrain is higher than most other Sonata years shown in NHTSA data, such as 2011 through 2014, which ranged from 5% to 7%.