Electrical system: power control unit
Hyundai Motor America (Hyundai) is recalling certain 2024-2026 Elantra Hybrid vehicles. The hybrid power control unit (HPCU) assembly may overheat.
NHTSA lists 1 safety recall and 6 owner complaints for the 2024 Hyundai Elantra Hybrid. Most complaints involve electrical system (3) and engine (2). The EPA rates it 50–54 mpg combined, and NHTSA gives it 5 stars overall.
Hyundai Motor America (Hyundai) is recalling certain 2024-2026 Elantra Hybrid vehicles. The hybrid power control unit (HPCU) assembly may overheat.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“The vehicle experienced a catastrophic engine compartment fire while safely parked inside an employment parking garage in [XXX] on XXX, at approximately 3:04 PM. I was physically sitting inside the vehicle cabin when heavy smoke suddenly began pouring out from the engine bay. I immediately evacuated the vehicle for my safety. Within moments, the smoke escalated into an active, un-contained fire that completely consumed the vehicle. The local fire department responded to the scene to extinguish the blaze. The vehicle is a total loss. This safety incident occurred exactly one week after I received the official manufacturer safety recall notice by mail for Hyundai Recall 301 (NHTSA Campaign Number: 26V308000), which outlines an overheating transistor defect within the Hybrid Power Control Unit (HPCU) capable of causing a vehicle fire. The vehicle caught fire due to this exact un-remedied defect before I could realistically bring it to a dealership for the required safety software update.”
“We lease 5 Hyundai 2024 Elantra Blue hybrids that were bought new a few months back. We have experienced the same issues with 3 of the 5 so far. Cars will STALL at low speeds and sometimes ENGINE LIGHT goes on. Cars will suddenly not accelerate after stopping at a stop sign. Extreme danger for our drivers who are transporting developmentally disabled clients to outings and shopping, etc. Hyundai REPLACED throttle body replacement but same issues reappeared 2 days after getting car back. Now, Hyundai is claiming the GPS units plugged in may be causing this, but other 2 are not experiencing this issue (2 of 5). They refuse to work on further unless GPS units are out, but customer needs GPS units per insurance. So we need help from Hyundai in dealing with the dealer Zimbrick East of Madison, WI. We need the vehicles, but don't want our employees at risk.”
“The contact owns a 2024 Hyundai Elantra Hybrid. The contact stated that while driving with cruise control activated, the vehicle lost motive power and failed to accelerate properly. Additionally, the engine vibrated abnormally, smoke emanated from under the hood, the message "Reduced Speed" was displayed, and the check engine warning light illuminated. The vehicle was parked on the side of the road, and a tow truck and a State Trooper arrived at the scene. The vehicle was towed to a local dealer, where it was diagnosed that the throttle had failed and needed to be replaced. The throttle was replaced and the vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 14,000.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Elantra Hybrid Blue Auto (AM-S6), 4 cyl, 1.6 L · Front-Wheel Drive | 51 | 58 | 54 | $1,100 | 165 |
| Elantra Hybrid Auto (AM-S6), 4 cyl, 1.6 L · Front-Wheel Drive | 49 | 52 | 50 | $1,200 | 177 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Nov 14, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 6 complaints with NHTSA. The most-cited components are electrical system (3), engine (2), vehicle speed control (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2024 Hyundai Elantra Hybrid at 50–54 mpg combined, depending on engine and drivetrain (2 versions rated).
NHTSA's New Car Assessment Program gives the 2024 Hyundai Elantra Hybrid 5 out of 5 stars overall.