2021 Cadillac CT4
The 2021 Cadillac CT4 is a compact car, rated at 27 MPG combined by the EPA. NHTSA lists 4 recalls for this model year.

- Combined MPG
- 27
- NHTSA safety
- Not rated
- Starting price
- $37,000
- Recalls
- 4
Watch: CT4 reviews
Full specifications
Identity
SRC · NHTSA vPIC| Make | Cadillac |
|---|---|
| Model | CT4 |
| Model year | 2021 |
| Vehicle class | Compact Car |
Engine & drivetrain
SRC · EPA FuelEconomy| Displacement | 2 L |
|---|---|
| Cylinders | 4 |
| Transmission | Automatic (S8) |
| Drivetrain | Rear-Wheel Drive |
| Fuel | Premium Gasoline |
Fuel economy
SRC · EPA FuelEconomy| City MPG | 23 |
|---|---|
| Highway MPG | 34 |
| Combined MPG | 27 |
| CO₂ tailpipe | 327 g/mi |
| EPA annual fuel cost | $2850 |
Available configurations
SRC · EPA FuelEconomy| CT4 | 25 MPG combined |
|---|---|
| CT4 | 27 MPG combined |
| CT4 AWD | 24 MPG combined |
| CT4 AWD | 26 MPG combined |
| CT4 V | 23 MPG combined |
| CT4 V AWD | 23 MPG combined |
Fuel economy
SRC · EPA FuelEconomy| City | 23 MPG |
|---|---|
| Highway | 34 MPG |
| Combined | 27 MPG |
Efficiency vs class average
About 15% below the class average.
- Amount financed
- $33,300
- Total interest
- $5,793
Partner offers · may earn us a commission
≈ $1,489/yr · 12,000 mi/yr · $3.35/gal
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Cost to own
Estimate monthly payments and 5-year fuel cost using the tools in the sidebar. Figures use EPA fuel economy and current U.S. energy prices from EIA.
Safety ratings & recalls
SRC · NHTSA vPICNHTSA has not published NCAP crash-test ratings for this model year yet.
Recalls (4)
- AIR BAGS:SIDE/WINDOW:CURTAIN21V611000 · 2021-08-05
General Motors, LLC. (GM) is recalling certain 2020-2022 Cadillac CT4 and CT5 vehicles. The roof rail side-curtain air bags may not have been installed correctly, which could result in an improper air bag deployment during a crash.
Remedy: Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as necessary, free of charge. Owner notification letters were mailed on August 30, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212342780.
- AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT21V421000 · 2021-06-10
General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.
Remedy: The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.
- EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE22V903000 · 2022-12-08
General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Remedy: The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.
- POWER TRAIN:AUTOMATIC TRANSMISSION25V148000 · 2025-03-06
General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and cause the wheels to lock-up.
Remedy: Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.
Compare with rivals
All model years
Frequently asked questions
What is the MPG of the 2021 Cadillac CT4?
The 2021 Cadillac CT4 is EPA-rated at 27 MPG combined (23 city / 34 highway).
Is the 2021 Cadillac CT4 reliable?
NHTSA lists 4 recalls for the 2021 Cadillac CT4. Recalls are repaired free of charge by the manufacturer — verify any open recalls by VIN before purchase.
How much does it cost to fuel the 2021 Cadillac CT4?
At 12,000 miles per year, the 2021 Cadillac CT4 costs roughly $1,489 per year to fuel, or about $7,444 over 5 years at current U.S. energy prices.
What type of vehicle is the 2021 Cadillac CT4?
The 2021 Cadillac CT4 is classified as a compact car. Common rivals in this class are worth comparing on price, MPG, and safety.
Sources: NHTSA vPIC · EPA FuelEconomy · NHTSA vPIC