2019 Cadillac XTS — Full Specifications
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The 2019 Cadillac XTS is a saloon/sedan offered with 2 engines (3.6L 6-cyl, 3.6L 6-cyl turbo). Its most fuel-efficient configuration returns around 26 mpg (UK) / 22 mpg (US EPA) combined, with 22–26 mpg (UK) across all configurations. Owners often keep a Cadillac XTS workshop manual to hand for servicing and repairs.
Compared with the 2018 Cadillac XTS: Fuel economy is essentially unchanged at around 26 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine (most efficient) | 3.6L 6-cyl |
|---|---|
| Engine options | 3.6L 6-cyl · 3.6L 6-cyl turbo |
| Transmission (most efficient) | Automatic (S6) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 104 cu ft (2,945 L) |
| Luggage Volume (EPA) | 18 cu ft (510 L) |
| Fuel Economy (UK) | 26 combined / 23 urban / 34 extra-urban mpg |
| Fuel Economy (US EPA) | 22 combined / 19 city / 28 highway mpg |
| CO₂ Emissions | 254 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,050 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 3 configurations for the 2019 Cadillac XTS across 2 engines (3.6L 6-cyl, 3.6L 6-cyl turbo). Combined fuel economy ranges from 18 to 22 mpg (US), or 22 to 26 mpg (UK), depending on engine, transmission and drive. 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 |
|---|---|---|---|---|---|---|
| 3.6L 6-cyl | Automatic (S6) | All-Wheel Drive | 24 | 20 (17/26) | 276 | $3,350 |
| 3.6L 6-cyl | Automatic (S6) | Front-Wheel Drive | 26 | 22 (19/28) | 254 | $3,050 |
| 3.6L 6-cyl turbo | Automatic (S6) | All-Wheel Drive | 22 | 18 (16/23) | 302 | $4,550 |
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 104 cubic feet (about 2,945 litres) and luggage volume at 18 cubic feet (about 510 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2019 Cadillac XTS
Running Costs: 2019 Cadillac XTS
Covering around 8,000 miles a year in a 2019 Cadillac XTS at 26 mpg combined, expect roughly 1,399 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,050 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.
2019 Cadillac XTS Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2019 Cadillac XTS (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 18V899000, reported 19 December 2018. Risk: If the securing rivet is missing, the buckle may separate from the cable mounting strap in the event of a crash, preventing the occupant from being properly restrained, thereby increasing 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 5 complaints with NHTSA about the 2019 Cadillac XTS. The most-reported areas are Power train (1), Engine (1), Air bags (1). Complaints include 1 reported crash. That is well below the median of 22 complaints across the 7 Cadillac XTS model years in our data.
Used-buyer checklist for the 2019 Cadillac XTS
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Seat belts (1 recall campaign) — Check every belt latches and retracts properly and that any restraint recalls were completed.
- Brakes (1 recall campaign) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Transmission & drivetrain (1 owner complaint) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Engine (1 owner complaint) — 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
At 26 mpg (UK) combined it sits close to the 27 mpg average for Cadillac models in our database.
Of the 7 Cadillac XTS model years we cover, the 2019 is the most economical on its best configuration (26 mpg UK combined). See every Cadillac XTS 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 2019 Cadillac XTS
Frequently Asked Questions
What engine does the 2019 Cadillac XTS have?
EPA lists 2 engines for the 2019 Cadillac XTS: 3.6L 6-cyl, 3.6L 6-cyl turbo. The most fuel-efficient configuration pairs the 3.6L 6-cyl with a automatic (s6).
What is the fuel economy of the 2019 Cadillac XTS?
The most efficient configuration returns around 26 mpg (UK) combined, or 22 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 22 to 26 mpg.
How much does the 2019 Cadillac XTS cost to fuel per year?
The US EPA estimates about $3,050 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 2019 Cadillac XTS have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2019 Cadillac XTS (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 2019 Cadillac XTS?
Among the 5 owner complaints filed with NHTSA, the most-reported areas are Power train (1 complaint), Engine (1 complaint), Air bags (1 complaint). 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 2019 Cadillac XTS have?
EPA measures interior passenger volume at 104 cubic feet (about 2,945 litres) and luggage volume at 18 cubic feet (about 510 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.