Is the 2021 Cadillac CT4 reliable?

There isn't enough NHTSA complaint data on file yet to give this model year a verdict.

What are the most common problems with the 2021 Cadillac CT4?

The most-reported component is engine, accounting for 43% of complaints on file.

How many recalls does the 2021 Cadillac CT4 have?

4 recalls on file for this model year.

2021 Cadillac CT4

○ Not enough data

2021 Cadillac CT4
RENDERED 2026-11-01T12:34:58.565Z

Only 7 complaints on file — too few for a fair verdict.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

Only 7 complaints on file — too few for a fair verdict. The data below is complete but unranked.

How is this computed?

Complaints: 7
Recalls: 4
Investigations: 1
Top problem: —

Complaints per year

2021: 7 complaints

View as data table

Year	Complaints
2020	8
2021	7
2022	6
2023	3
2024	7
2025	2
2026	1

Known problem areas

Only 7 complaints on file for this model year — too few to rank by share. Raw counts only, below.

Engine

3 of 7 total reports mention: engine.

Fuel/propulsion system

2 of 7 total reports mention: fuel/propulsion system.

Vehicle speed control

1 of 7 total reports mentions: vehicle speed control.

Tires

1 of 7 total reports mentions: tires, most commonly citing sidewall.

Show complaint excerpts

235 40 80 run flat Both front and rear passenger tires no damage to rim less that 10k miles

NHTSA ODI report, 2022-06-23

Suspension

1 of 7 total reports mentions: suspension.

Safety timeline

4 recalls · 1 investigation · oldest first

To check one car, enter its VIN on the NHTSA recall page. Check a VIN →

I
2021-04-09Preliminary evaluationClosed 2023-08-24 Air Bag Malfunction
R

2021-07-01Air bags, electrical system21V421000 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.

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.

Check if this car was fixed →
R

2021-08-30Air bags21V611000 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.

Check if this car was fixed →
R

2023-01-23Exterior lighting22V903000 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.

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.

Check if this car was fixed →
R

2025-04-07Power train25V148000 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.

Check if this car was fixed →

Buy-smart checklist

2021 Cadillac CT4 — pre-purchase inspection

Inspect

Engine: 3 reports on file for this year.
Fuel/propulsion system: 2 reports on file for this year.
Vehicle speed control: 1 report on file for this year.

Verify these recalls were completed

Recall 21V421000 · Air bags, electrical system
Recall 21V611000 · Air bags
Recall 22V903000 · Exterior lighting
Recall 25V148000 · Power train

FAQ

Is the 2021 Cadillac CT4 reliable?: There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2021 Cadillac CT4?: The most-reported component is engine, accounting for 43% of complaints on file.
How many recalls does the 2021 Cadillac CT4 have?: 4 recalls on file for this model year.

Data updated 2026-10-31 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.