The most-reported CT4 run is 1G6DA5RK0L0 (2020 builds) with 2 complaints, 1.8× the typical run. Engine problems make up 20% of reports; 2020 is the worst model year at 1.1 complaints per run; NHTSA lists 5 recall campaigns for CT4 model years 2020–2023.
Which build runs owners report most
A production run is the first 11 characters of the VIN: plant, model year, body and engine. The Cadillac CT4 has 30 of them on record. The five runs at the top of this table hold 22% of every CT4 complaint on file.
| Production run (VIN 1–11) | Year | Complaints | Involved a crash | Fire |
|---|---|---|---|---|
| 1G6DA5RK0L0•••••• | 2020 | — | — | |
| 1G6DA5RK5R0•••••• | 2024 | — | — | |
| 1G6DK5RK8L0•••••• | 2020 | — | — | |
| 1G6DF5RK6L0•••••• | 2020 | — | — | |
| 1G6DJ5RK7L0•••••• | 2020 | — | — | |
| 1G6DJ5RK0L0•••••• | 2020 | — | — | |
| 1G6DA5RK9L0•••••• | 2020 | — | — | |
| 1G6DK5RK5L0•••••• | 2020 | — | — | |
| 1G6DH5RL8M0•••••• | 2021 | — | — | |
| 1G6DA5RKXM0•••••• | 2021 | — | — | |
| 1G6DB5RK5S0•••••• | 2025 | — | — | |
| 1G6DB5RK0M0•••••• | 2021 | — | — |
Each of the other 18 CT4 runs has 1 complaint or fewer. ForCar has checked 62 CT4 VINs so far, most often 2023, 2022, 2024 builds; 1 of them belong to one of the 12 runs above.
Which model years to check twice
Complaints per production run, so a year that simply sold more does not top the list. On the Cadillac CT4 the gap between build years is 1.1×: a 2020 car draws 1.1 complaints per run, a 2021 one 1.
| Year | Per run | Complaints | Runs | Crashes |
|---|---|---|---|---|
| 2024 | 6 | 5 | 1 | |
| 2023 | 3 | 3 | — | |
| 2022 | 6 | 6 | 1 | |
| 2021 | 7 | 7 | — | |
| 2020 | 8 | 7 | — |
Heaviest year here is 2024 at 1.2 complaints per run; lightest is 2021 at 1. The 2024 line is still collecting reports, so it reads low.
What to inspect on this car
One system accounts for 20% of everything Cadillac CT4 owners report: Engine, 9 of 32 complaints. Start the pre-purchase inspection there.
| System | Complaints | Involved a crash | Fire |
|---|---|---|---|
| Engine | 1 | — | |
| Service Brakes | — | — | |
| Power Train | — | — | |
| Steering | — | — | |
| Electrical System | 1 | — | |
| Vehicle Speed Control | 1 | — | |
| Fuel/propulsion System | — | — | |
| Forward Collision Avoidance | — | — |
Recalls to check against your VIN
NHTSA has 5 recall campaigns on the Cadillac CT4; the 5 below cover build years 2020 to 2023. These are for the model and year; whether one is still open on a given car, only that VIN can tell.
| Campaign | Component | Model years |
|---|---|---|
| 22V903000 | Exterior Lighting:lighting Control Module:software | 2020–2023 |
| 21V611000 | Air Bags:side/window:curtain | 2020–2022 |
| 25V148000 | Power Train:automatic Transmission | 2020–2021 |
| 21V421000 | Air Bags:srs Malfunction Warning Lamp/light | 2021 |
| 20V588000 | Service Brakes | 2020 |
22V903000 was opened in 2022 on cars built from 2020: 2 years on the road before the recall.
How serious were they
Of the 32 reports on the Cadillac CT4, 6.3% involved a crash against 5.8% across all vehicles, above the norm.
| Outcome | Cadillac CT4 | All vehicles |
|---|---|---|
| Complaints filed | 32 | 1,115,966 |
| Involved a crash | 2 (6.3%) | 64,194 (5.8%) |
| Involved a fire | 0 (0%) | 26,974 (2.4%) |
| Injuries reported | 1 | 58,013 |
| Deaths reported | 0 | 2,728 |
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How this check works
The file behind this page holds 1,115,966 complaints filed with NHTSA between 1981 and 2026, across 298,921 production runs. The Cadillac CT4 share of that is 32 complaints over 30 runs, 0% of everything on record.
Frequently asked questions
How do I check a Cadillac CT4 VIN for free?
Enter the 17 characters above. ForCar matches the first eleven, the production run, against 32 NHTSA complaints from 30 CT4 runs and 5 recall campaigns. No account, no card.
Which CT4 production run has the most complaints?
1G6DA5RK0L0, a 2020 build, with 2 complaints. The typical CT4 run has 1.1.
Which CT4 years have the most complaints?
Per production run, 2024 is heaviest at 1.2 complaints per run and 2021 lightest at 1.
How many CT4 complaints involve a crash?
6.3% of 32 reports, against 5.8% across all vehicles; 0 involved a fire.
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