Showing the 2018 CTS Luxury. We haven't verified this trim's engine; the numbers below cover every version of this model year. Every version
Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.
Fuel economy
19–25 mpgcombined; city 16–22, highway 24–30; every version of this model year
Five years of fuel
$13,530–$21,180U.S. average; Ohio $12,090–$19,960 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA's VIN data lists these trims for the 2018 CTS. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.
Owners have filed 8 complaints with NHTSA about the 2018 CTS. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Electrical system
3
0
0
0
Power train
3
0
0
0
Air bags
1
1
0
0
Engine
1
0
0
0
Exterior lighting
1
0
0
0
Unknown or other
1
0
0
0
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 2 recall campaigns for the 2018 CTS over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CTS, 2017-2018 Cadillac ATS, Chevrolet Camaro, and Chevrolet Corvette vehicles. The electric power steering (EPS) assist may fail.
Risk: A loss of power steering assist can require greater steering effort, especially at low speeds, increasing the risk of a crash.
Remedy: Dealers will replace the power steering gear assembly, free of charge. Owner notification letters were mailed April 15, 2025. Owners may contact Cadilac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252497020.
General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CTS, and 2017 Cadillac ATS, Chevrolet Camaro, and Chevrolet Corvette vehicles. The electric power steering (EPS) assist system may fail.
Risk: Loss of power steering assist would require a higher steering effort, especially at lower speeds, which may increase the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the power steering gear assembly, free of charge. The recall began June 13, 2019. GM' number for this recall is N182182760.
Carmakers sent NHTSA 1,089 service bulletins and notices that cover the 2018 CTS, the latest on Sep 26, 2026. They tell dealers how to fix known issues.
The parts they mention most: equipment (381), electrical system (201), engine and engine cooling (158), engine (128), power train (125).
NHTSA hasn't opened a defect investigation that covers this model year.
Maintenance
Oil
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2018 CTS.
EPA class: midsize cars. EPA greenhouse gas score: 3–5 out of 10. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
CTS Rear-Wheel Drive
2.0 L, 4 cyl, turbo
Automatic (S8)
Premium Gasoline
22 / 30 / 25
CTS All-Wheel Drive
2.0 L, 4 cyl, turbo
Automatic (S8)
Premium Gasoline
21 / 29 / 24
CTS Rear-Wheel Drive
3.6 L, 6 cyl
Automatic (S8)
Regular Gasoline
20 / 30 / 24
CTS All-Wheel Drive
3.6 L, 6 cyl
Automatic (S8)
Regular Gasoline
19 / 27 / 22
CTS Rear-Wheel Drive
3.6 L, 6 cyl, turbo
Automatic (S8)
Premium Gasoline
16 / 24 / 19
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 17, 2026
NHTSA recalls, file of Oct 17, 2026
NHTSA manufacturer communications, file of Oct 17, 2026
NHTSA defect investigations, file of Oct 17, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data