Problems · NHTSA complaints

2020 Cadillac CT5 problems

Owners filed 40 complaints about the 2020 Cadillac CT5 with NHTSA between Jun 2020 and Oct 2026. The most-cited component is power train (16).

Complaints
40
Filed with NHTSA
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train16
  2. Engine8
  3. Electrical system8
  4. Structure5
  5. Latches/locks/linkages2
  6. Wheels2
  7. Vehicle speed control2
  8. Steering2
  9. Service brakes1
  10. Engine and engine cooling1
  11. Fuel/propulsion system1
  12. Air bags1
  13. Lane departure1
  14. Suspension1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20204
20212
20220
20233
20241
202515
202615

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Power train

16 reports1 crash1 related recall
“What component or system failed or malfunctioned, and is it available for inspection upon request? The 10 speed transmission started get struck in gears while on the highway. How was your safety or the safety of others put at risk? Yes Has the problem been reproduced or confirmed by a dealer or independent service center? No Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Transmission needs service”
Owner complaint to NHTSAFiled Oct 30, 2026Power train, Service brakes, EngineODI 11774793

Engine

8 reports
“The contact’s son owns a 2020 Cadillac CT5. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. After a visual inspection, the contact observed that the engine oil was abnormally low. The vehicle was taken to the dealer, who diagnosed a failure with the engine. The contact was informed that the engine needed to be replaced. The vehicle was repaired, but the failure reoccurred. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 14,466.”
Owner complaint to NHTSAFiled Nov 18, 2025EngineODI 11700097

Electrical system

8 reports1 crash
“My front door latch doesn't work often leaving me locked out of the car. If the car is off I can use the auto roll down feature, but if the car is on i can't. This is a safety issue if I am in danger or my child is in the car.”
Owner complaint to NHTSAFiled Mar 8, 2026Electrical systemODI 11722816

Structure

5 reports
“Electronic door hand on the drivers side completely stopped working, with little warning. This includes the proximity unlock feature and unlocking the car with the fob. If this were to have happened to all four doors at once, it would have been impossible to enter the car without breaking the glass. This is not safe.”
Owner complaint to NHTSAFiled Jul 26, 2026StructureODI 11752920

Latches/locks/linkages

2 reports
“The contact owns a 2020 Cadillac CT5. The contact stated that while the vehicle was parked and using the key fob to open the door, the door on the driver’s side failed to open. The failure was a recurring failure. The dealer was contacted and diagnosed the vehicle with an exterior door handle failure on the driver’s side. The manufacturer was not made aware of the failure. The failure mileage was approximately 46,000.”
Owner complaint to NHTSAFiled Aug 4, 2026Latches/locks/linkagesODI 11754827

Wheels

2 reports
“Major safety Concern Faulty valve body and transmission dealership failed to disclose. Service manager drove vehicle with bent wheels. That is how the bent wheels were discovered. Not from inspection. Wheels evidently bent under dealership possession. 2020 Cadillac CT5 Vehicle financed at 12K Miles with certified pre owned, bumper to bumper, and powertrain warranties in February 2024 showed poor driving, shifting, acceleration and abnormal behaviors such as slow and delayed shifting/acceleration, loud shifting, jerking, and strange noises from the vehicle and low power. There were very suspicious mechanical issues wrong with the car in which the dealership told me that there isn’t anything wrong with the car, with the understanding that if anything was ever wrong with the vehicle it has been fixed. I was ensured and promised that the car does not have anything wrong with it and that it goes through inspection and diagnostics, that the vehicle cannot be sold without being tested, fixed of any problems and brought to standard. I brought this to the attention of the salesman, owner, financial advisor, service advisor, service manager. I requested a full buyback…”
Owner complaint to NHTSAFiled Aug 17, 2025Power train, Wheels, EngineODI 11681128
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.