Is the 2018 Hyundai Sonata Plug-in Hybrid reliable?

NHTSA lists 0 complaints and 1 recall for the 2018 Sonata Plug-in Hybrid, giving it a complaint index of 0, the lowest among the 4 model years with data.

What recalls does the 2018 Hyundai Sonata Plug-in Hybrid have?

There is 1 recall, campaign 18V166000, covering the fuel system. It involves a Voltage Protection Device tied to the high voltage battery module, and Hyundai's remedy replaces the VPD switch with a new Battery Management System.

How does the 2018 model compare to other Sonata Plug-in Hybrid years?

The 2018 has a complaint index of 0, better than 2016 (67, Caution) and 2017 (100, Avoid), and roughly in line with 2019 (33, Good).

What is the fuel economy of the 2018 Hyundai Sonata Plug-in Hybrid?

EPA rates it at 39 mpg combined (37 city, 42 highway), with an annual fuel cost of $1,650.

2018 Hyundai Sonata Plug-in Hybrid Reliability Data: Problems & Recalls

No verdict The 2018 Hyundai Sonata Plug-in Hybrid has 0 NHTSA complaints and 1 recall, ranking 4th of 4 model years by complaint index (0). It compares favorably to 2017 (complaint index 100, Avoid) and 2016 (67, Caution), sitting close to 2019 (33, Good).

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index: 0/100; #4 of 4 Sonata Plug-in Hybrid years
Verdict: No verdict; vs. other years of this model
Complaints: 0; unique NHTSA reports
Recalls: 1; distinct NHTSA campaigns
Crashes: 0; reported in complaints
Fires: 0
Injuries: 0
Top issue: —
Best nearby year: 2019; rated Good

NHTSA overall rating: Not rated
EPA combined MPG: 39; 37 city / 42 hwy
Injuries / deaths: 0 / 0

2018 Hyundai Sonata Plug-in Hybrid recalls

1 NHTSA recall campaign list this model year.

NHTSA 18V166000Mar 12, 2018Fuel System2,840 vehicles
Hybrid propulsion system
Hyundai Motor America (Hyundai) is recalling certain 2016-2018 Hyundai Sonata Plug-In Hybrid vehicles. These vehicles are equipped with a Voltage Protection Device (VPD), designed to protect the high voltage battery module, that may activate inadvertently.
Risk: If the VPD activates while the vehicle is being operated in Electric Vehicle (EV) mode, there may be a loss of power, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will remove the VPD switch and install a new Battery Management System (BMS) that contains an Overvoltage Protection Device (OPD). The recall is expected to begin May 2018. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 175.

2018 Hyundai Sonata Plug-in Hybrid fuel economy and fuel cost

City: 37 MPG
Highway: 42 MPG
Combined: 39 MPG
Annual fuel cost (EPA): $1,650; 15,000 mi/yr
Fuel: Regular Gas and Electricity
Current regular gas: $4.32/gal; national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2018 compared with other Sonata Plug-in Hybrid years

Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best

Year	Verdict	Index	Complaints	Recalls	MPG
2016	Caution	67	26	2	40
2017	Avoid	100	32	2	39
2018	No verdict	0	0	1	39
2019	Good	33	5	0	39

All Hyundai Sonata Plug-in Hybrid years: best and worst →

Frequently asked questions

Is the 2018 Hyundai Sonata Plug-in Hybrid reliable?: NHTSA lists 0 complaints and 1 recall for the 2018 Sonata Plug-in Hybrid, giving it a complaint index of 0, the lowest among the 4 model years with data.
What recalls does the 2018 Hyundai Sonata Plug-in Hybrid have?: There is 1 recall, campaign 18V166000, covering the fuel system. It involves a Voltage Protection Device tied to the high voltage battery module, and Hyundai's remedy replaces the VPD switch with a new Battery Management System.
How does the 2018 model compare to other Sonata Plug-in Hybrid years?: The 2018 has a complaint index of 0, better than 2016 (67, Caution) and 2017 (100, Avoid), and roughly in line with 2019 (33, Good).
What is the fuel economy of the 2018 Hyundai Sonata Plug-in Hybrid?: EPA rates it at 39 mpg combined (37 city, 42 highway), with an annual fuel cost of $1,650.