Have a question about the 2026 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2026 Cadillac CT4
No NHTSA recalls are listed for the 2026 Cadillac CT4.
Report a problem with this manual
Have a question about the 2025 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2025 Cadillac CT4
No NHTSA recalls are listed for the 2025 Cadillac CT4.
Report a problem with this manual
Have a question about the 2024 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2024 Cadillac CT4
No NHTSA recalls are listed for the 2024 Cadillac CT4.
Report a problem with this manual
Have a question about the 2023 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2023 Cadillac CT4
Report a problem with this manual
Have a question about the 2022 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2022 Cadillac CT4
Report a problem with this manual
Have a question about the 2021 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2021 Cadillac CT4
Report a problem with this manual
Have a question about the 2020 Cadillac CT4? The AI assistant looks through this manual and shows the pages with the answer.
Recalls for 2020 Cadillac CT4
Report a problem with this manual
2023–2026 Cadillac CT4 FAQ
How do I check the manual transmission fluid level?
2023–2026
You do not need to check the manual transmission fluid level; if a leak occurs, have your dealer repair it as soon as possible.
Page 301 in the 2026 manual →How should I handle spark plug gaps on my Cadillac CT4?
2025–2026
Use manufacturer-preset plugs: 2.0L and 2.7L L4 engines require 0.65-0.75 mm (0.026-0.030 in), while the 3.6L V6 requires 0.75-0.90 mm (0.030-0.035 in); do not re-gap them because damage can result.
Page 381 in the 2026 manual →2024
No; spark plug gaps are preset by the manufacturer, and re-gapping is not recommended because it can damage the spark plug.
Page 380 in the 2024 manual →What should I do when the engine air filter life message appears?
2025–2026
If equipped, replace the engine air filter at the next oil change for REPLACE AT NEXT OIL CHANGE, or at the earliest convenience for REPLACE SOON; reset the display after replacement.
Page 106 in the 2026 manual →When should I change the engine oil and reset the Oil Life display?
2025–2026
When CHANGE ENGINE OIL SOON appears, change the oil as soon as possible and reset Oil Life only after the oil has been changed.
Page 106 in the 2026 manual →When should I replace the passenger compartment air filter?
2025–2026
Have the passenger compartment air filter replaced as part of routine scheduled maintenance; the manual directs owners to a dealer for replacement.
Page 183 in the 2026 manual →2023–2024
Replace the passenger compartment air filter as part of routine scheduled maintenance, and see your dealer for replacement.
Page 180 in the 2024 manual →What should I do if the headlights need aiming?
2025–2026
Headlight aim is preset, but if a crash affects it or adjustment is needed, have your dealer adjust the headlights.
Page 318 in the 2026 manual →How do I turn on the automatic headlamps?
2023–2024
Set the exterior lamp control to AUTO; the headlamps turn on automatically when it is dark enough outside, but do not cover the light sensor.
Page 118 in the 2024 manual →What does the passenger compartment air filter do?
2023–2024
The passenger compartment air filter reduces dust, pollen, and other airborne irritants from outside air entering the vehicle.
Page 180 in the 2024 manual →What should I do if a turn signal flashes rapidly or does not work?
2023
A signal function may be inoperative; because the vehicle may use LED lighting, contact your dealer for replacement of any LED lighting.
Page 150 in the 2023 manual →When should I replace the engine air filter?
2023
If equipped, replace it at the next oil change when REPLACE AT NEXT OIL CHANGE appears, or at the earliest convenience when REPLACE SOON appears.
Page 132 in the 2023 manual →Cadillac CT4 complaints to NHTSA
Complaints that owners filed with NHTSA for each model year. They are unverified reports and are not adjusted for how many vehicles were sold.
| Year | Complaints | Crashes / fires / injuries | Most reported areas |
|---|---|---|---|
| 2026 | 0 | 0 / 0 / 0 | None reported |
| 2025 | 2 | 0 / 0 / 0 | Unknown or other (1), Vehicle speed control (1), Forward collision avoidance (1) |
| 2024 | 7 | 1 / 0 / 0 | Power train (2), Engine (2), Visibility/wiper (2) |
| 2023 | 3 | 0 / 0 / 0 | Steering (1), Vehicle speed control (1), Service brakes (1) |
| 2022 | 6 | 1 / 0 / 1 | Steering (4), Service brakes (4), Electrical system (2) |
| 2021 | 7 | 0 / 0 / 0 | Engine (3), Fuel/propulsion system (2), Vehicle speed control (1) |
| 2020 | 8 | 0 / 0 / 0 | Engine (3), Service brakes (2), Power train (2) |
Questions and answers
Ask about the selected manual. New posts are reviewed before they appear.
No published questions for this manual yet.
No published questions for this manual yet.
No published questions for this manual yet.
No published questions for this manual yet.
No published questions for this manual yet.
No published questions for this manual yet.
No published questions for this manual yet.
All Cadillac CT4 manuals
| Year | Generation | Pages | File |
|---|---|---|---|
| 2026 | 2025–2026 | 415 pages | 5.7 MB |
| 2025 | 2025–2026 | 415 pages | 11.8 MB |
| 2024 | 2024 | 414 pages | 7.8 MB |
| 2023 | 2023 | 524 pages | 7.3 MB |
| 2022 | 2020–2022 | 464 pages | 8.2 MB |
| 2021 | 2020–2022 | 430 pages | 5.9 MB |
| 2020 | 2020–2022 | 357 pages | 6.0 MB |
More manuals
| Cadillac ATS | 2013–2019 |
|---|---|
| Cadillac CELESTIQ | 2025–2026 |
| Cadillac CT5 | 2020–2026 |
| Cadillac CT6 | 2016–2020 |
| Cadillac CTS | 2003–2019 |
| Cadillac Escalade | 1999–2027 |