2021 Cadillac CT4Problems, recalls & complaints

NHTSA has logged 7 owner complaints about the 2021 Cadillac CT4, most often about the engine. It is covered by 4 safety recalls, and for recall 25V-148 the manufacturer reports only 71% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through June 29, 2026. Updated daily.

Complaints by system

Where the 2021 Cadillac CT4 has problems

7 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine30
Fuel/propulsion system20
Power train10
Steering10
Suspension10
Tires10
Electrical system10
Vehicle speed control10
Forward collision avoidance10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

4 recalls

2021 Cadillac CT4 recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

71%repaired · 2026 Q3

Power train: automatic transmission

Recall 25V-148 · Mar 6, 2025 · 90,081 vehicles · 64,082 repaired

Risk. Wheel lock-up while driving increases the risk of a crash.

Problem, fix and repair progress →

97%repaired · 2024 Q4

Lighting control module: software

Recall 22V-903 · Dec 8, 2022 · 740,108 vehicles · 715,321 repaired

Risk. DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.

Problem, fix and repair progress →

94%repaired · 2023 Q2

Air bags

Recall 21V-611 · Aug 5, 2021 · 34,157 vehicles · 32,243 repaired

Risk. Air bags that do not deploy properly can increase the risk of injury in a crash.

Problem, fix and repair progress →

97%repaired · 2023 Q2

Air bags: SRS malfunction warning lamp/light

Recall 21V-421 · Jun 10, 2021 · 285,622 vehicles · 277,508 repaired

Risk. The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Cadillac.

Best & worst years

2021 vs. every other CT4 year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the CT4 median. How we score

'20'21'22'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
NHTSA crash tests

2021 Cadillac CT4 safety ratings

2021 Cadillac CT4 4 DR AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

  • Stability control: Standard
  • Forward collision warning: Standard
  • Lane departure warning: Optional
1 investigation

NHTSA defect investigations

Federal investigations that included the 2021 Cadillac CT4, and the recalls they led to.

  1. Air Bag MalfunctionPE21010 · closed Aug 24, 2023
    No recall
In owners' words

What CT4 owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

While driving at highway speeds on the freeway in my 2021 Cadillac CT4-V, the vehicle experienced a sudden, catastrophic loss of propulsion. Without warning, the transmission dropped out of gear as if it were in neutral. I completely lost the ability to accelerate, creating an immediate,…
Complaint 11747192 · Jun 29, 2026
valve body failed and was supposedly repaired. I had the car 1 day and valve body failed again. My car has been in the shop since November 4, 2024 with no estimated time of repair because no parts are available. I was told they would replace the transmission. That has not happened yet. No parts…
Complaint 11655109 · Apr 16, 2025

Own a 2021 CT4?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.