Reliable Auto DB

2020 Cadillac CT4 reliability

Is it reliable?

Owners have filed 8 complaints with NHTSA about the 2020 Cadillac CT4 over 7 years — 0 per year. That is fewer complaints per year than most CT4 years here — under the median of the other years, which is 2. NHTSA has 4 recalls on file, including Automatic transmission, Lighting control module, software, and Curtain.

2020 Cadillac CT4
Photo by Kontinent Media, resized from the original. Wikimedia Commons CC BY 2.0
Complaints

8

Per year

0

Recalls

4

Years on the road

7

What owners report

The complaints owners file most often name Engine (3 of 8), then Powertrain (2) and Service brakes (2).

Next to 2021

The 2021 CT4 has 7 complaints, 0 per year. The 2020 has about the same number of complaints per year as the 2021.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2020 Cadillac CT4. How we count. Data as of .

Recalls (4)

Recall powertrain, automatic transmission 2025-03-06 · NHTSA campaign 25V148000
Summary 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.
Recall exterior lighting, lighting control module, software 2022-12-08 · NHTSA campaign 22V903000
Summary 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.
Recall air bags, side and window, curtain 2021-08-05 · NHTSA campaign 21V611000
Summary 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.
Recall Service brakes 2020-09-24 · NHTSA campaign 20V588000
Summary General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
Remedy GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.

Complaints by component (8 total)

Engine
3
Powertrain
2
Service brakes
2
Air bags
1
Fuel and propulsion system
1
Crash-flagged

0

Fire-flagged

0

Injury reports

0

Death reports

0

Complaints filed per year

12021120241202552026
Excerpts from recent NHTSA complaint filings
  • "Total brake system failure. Lost almost all brake function nearly causing an accident. June 17, 2026 car was taken to dealership. Electronic Brake Control Module (EBCM), Brake Master Cylinder, Brake Pedal Retainer…"
    Service brakes · filed 2026-08-26
  • "69,000 mile oil change I was told i needed to spend thousands of dollars on repairing an oil leak b/c my Cam carrier is leaking. Cadillac has a know issue with this repair and refuses to stand behind it's product.…"
    Engine · filed 2026-08-25
  • "I had two incidents with the Cadillac CT-4 in February and then again in April of 2026 of driving on I-75 at a highway speed of about 70 MPH when the vehicle suddenly downshifted and the engine revving at at very high…"
    Powertrain · filed 2026-07-23
  • "The electronic brake control module, break retainer, brake master cylinder and brake valve all failed. I was driving to lunch and coming down a hill when multiple warning lights turned on as I pressed the brakes. I had…"
    Service brakes · filed 2026-06-23
  • "The vehicle shudders and loses power when accelerating fast. My wife almost got hit when she pulled out in traffic the car stalled out. It is due to the cylinder deactivation (afm)."
    Powertrain, Engine, Fuel and propulsion system · filed 2026-06-08

NHTSA crash ratings

Version Overall Front Side Rollover
2020 Cadillac CT4 4 DR AWD Not rated Not rated Not rated Not rated
2020 Cadillac CT4 4 DR RWD Not rated Not rated Not rated Not rated

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Fuel economy

Trim Engine Transmission Drive City Hwy Combined Annual fuel cost
CT4 2.7L, 4-cyl Automatic (10-speed) Rear-wheel drive 20 30 24 MPG $3300
CT4 2L, 4-cyl Automatic (8-speed) Rear-wheel drive 23 34 27 MPG $2950
CT4 all-wheel drive 2L, 4-cyl Automatic (8-speed) All-wheel drive 23 32 26 MPG $3050
CT4 all-wheel drive 2.7L, 4-cyl Automatic (10-speed) All-wheel drive 20 28 23 MPG $3450
CT4 V 2.7L, 4-cyl Automatic (10-speed) Rear-wheel drive 20 29 23 MPG $3450
CT4 V all-wheel drive 2.7L, 4-cyl Automatic (10-speed) All-wheel drive 20 28 23 MPG $3450

Specs and fitment

First generation, 2020–present
Body styles Sedan
Oil 0W-20 (2.0L turbo four-cylinder) , 5.3 qt capacity
Tire size 225/45R18 (base), 245/40R19 (V-Series)

Known issues for this generation

Recall 21V611000 covers certain 2020-2022 Cadillac CT4 and CT5 vehicles where the roof-rail side-curtain air bags may not have been installed correctly, which can cause improper deployment in a crash; dealers inspect and reinstall both roof-rail air bags as needed. Recall 25V148000 covers certain 2020-2021 CT4 vehicles (with CT5, CT6, and Camaro) equipped with a 10-speed transmission that may become damaged internally and lock the wheels; dealers install transmission control module monitoring software. Recall 20V588000 covers certain 2020 CT4 vehicles (with Corvette, CT5, XT4, Trailblazer, and Encore GX) where electronic brake-boost sensor contamination can interrupt communication and lose brake-boost assist; dealers replace the electronic brake boost module. Recall 22V903000 covers certain 2020-2023 CT4 vehicles (with CT5, Envision, Escalade, and other GM models) whose daytime running lights may not deactivate when the headlights are on; body control module software is updated by a dealer or OTA.

Compare

Next year 2021 Cadillac CT4 See every Cadillac CT4 model year →

Frequently asked questions

Is the 2020 Cadillac CT4 reliable?

Owners have filed 8 complaints with NHTSA about the 2020 Cadillac CT4 over 7 years — 0 per year. That is fewer complaints per year than most CT4 years here — under the median of the other years, which is 2. NHTSA has 4 recalls on file, including Automatic transmission, Lighting control module, software, and Curtain.

What are common problems with a 2020 Cadillac CT4?

The complaints owners file most often name Engine (3 of 8), then Powertrain (2) and Service brakes (2).

Is the 2020 Cadillac CT4 more reliable than the years next to it?

The 2021 CT4 has 7 complaints, 0 per year. The 2020 has about the same number of complaints per year as the 2021.

Has the 2020 Cadillac CT4 been recalled?

The 2020 Cadillac CT4 has 4 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2020 Cadillac CT4?

Owners have filed 8 complaints about the 2020 Cadillac CT4 with NHTSA.

What mpg does a 2020 Cadillac CT4 get?

EPA-rated combined fuel economy for the 2020 Cadillac CT4 is 24.3 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What oil does a Cadillac CT4 take?

0W-20 for the 2.0L turbo four-cylinder; capacity about 5.3 qt including filter—confirm in the owner’s manual.

Does the Cadillac CT4 share air bag recalls with the CT5?

Yes—recall 21V611000 covers certain 2020-2022 CT4 and CT5 vehicles for incorrectly installed roof-rail side-curtain air bags.