2018 Chevrolet Volt — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2018 Chevrolet Volt is a hatchback powered by a 1.5L 4-cyl regular gasoline engine. It returns around 50 mpg (UK) / 42 mpg (US EPA) combined. Owners often keep a Chevrolet Volt workshop manual to hand for servicing and repairs.
Compared with the 2017 Chevrolet Volt: Fuel economy is essentially unchanged at around 50 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 1.5L 4-cyl |
|---|---|
| Transmission | Automatic (variable gear ratios) |
| Fuel Type | Regular Gasoline |
| Powertrain | Plug-in Hybrid |
| Drive | Front-Wheel Drive |
| Body Style | Hatchback |
| Passenger Volume (EPA) | 90 cu ft (2,549 L) |
| Luggage Volume (EPA) | 19 cu ft (538 L) |
| Fuel Economy (UK) | 50 combined / 52 urban / 50 extra-urban mpg |
| Fuel Economy (US EPA) | 42 combined / 43 city / 42 highway mpg |
| CO₂ Emissions | 32 g/km |
| EPA Greenhouse Gas Score | 10 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $1,600 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2018 Chevrolet Volt, all with the 1.5L 4-cyl engine. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 1.5L 4-cyl (Plug-in Hybrid) | Automatic (variable gear ratios) | Front-Wheel Drive | 50 | 42 (43/42) | 32 | $1,600 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 90 cubic feet (about 2,549 litres) and luggage volume at 19 cubic feet (about 538 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2018 Chevrolet Volt
Running Costs: 2018 Chevrolet Volt
Covering around 8,000 miles a year in a 2018 Chevrolet Volt at 50 mpg combined, expect roughly 727 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $1,600 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2018 Chevrolet Volt Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2018 Chevrolet Volt (as of 6 October 2026). Most affected areas: Seat belts (1), Service brakes (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Seat belts — campaign 18V673000, reported 26 September 2018. Risk: If the child seat is not properly secured in the event of a crash, it can increase the risk of injury.
- Service brakes — campaign 18V576000, reported 30 August 2018. Risk: A reduction of braking performance can increase the risk of a crash.
Owners have filed 225 complaints with NHTSA about the 2018 Chevrolet Volt. The most-reported areas are Electrical system (87), Power train (85), Fuel/propulsion system (73). Complaints include 4 reported crashes, 1 reported injury. That is close to the median of 169 complaints across the 9 Chevrolet Volt model years in our data.
Used-buyer checklist for the 2018 Chevrolet Volt
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (87 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Transmission & drivetrain (85 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Fuel system (73 owner complaints) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Engine (50 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Chevrolet models in our database average about 29 mpg (UK) combined on their most efficient configuration; the 2018 Chevrolet Volt's 50 mpg is 21 mpg above that make average. Its 32 g/km CO₂ figure is 214 g/km lower than the 246 g/km Chevrolet average.
Of the 9 Chevrolet Volt model years we cover, the 2018 is the most economical on its best configuration (50 mpg UK combined). See every Chevrolet Volt year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2018 Chevrolet Volt
Frequently Asked Questions
What engine does the 2018 Chevrolet Volt have?
It's fitted with a 1.5L 4-cyl regular gasoline engine, paired with a automatic (variable gear ratios) transmission.
What is the fuel economy of the 2018 Chevrolet Volt?
The most efficient configuration returns around 50 mpg (UK) combined, or 42 mpg on the US EPA cycle.
How much does the 2018 Chevrolet Volt cost to fuel per year?
The US EPA estimates about $1,600 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2018 Chevrolet Volt have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.
Does the 2018 Chevrolet Volt have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2018 Chevrolet Volt (as of 6 October 2026). Most affected areas: Seat belts (1), Service brakes (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2018 Chevrolet Volt?
Among the 225 owner complaints filed with NHTSA, the most-reported areas are Electrical system (87 complaints), Power train (85 complaints), Fuel/propulsion system (73 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2018 Chevrolet Volt have?
EPA measures interior passenger volume at 90 cubic feet (about 2,549 litres) and luggage volume at 19 cubic feet (about 538 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.