AutoUtility currently tracks 11 official NHTSA owner defect complaints for the 2020 Cadillac CT6. Powertrain & Transmission issues are the most frequently reported category, appearing in 6 complaints (54.5% of submitted records). Among these NHTSA complaint records, 2 filings cite a crash.

Key Problem Findings
  • • Total NHTSA Complaints: 11 reports
  • • #1 Reported Problem Area: Powertrain & Transmission (6 reports • 54.5% of submitted complaints)
  • • Secondary Problem Areas: Brakes & Traction Control (3), Driver Assistance & Safety Tech (2)
  • • Crash-Citing Complaints: 2 filings
  • • Fire-Citing Complaints: 0 filings
  • • Complaints Reporting Injuries / Fatalities: 0 injury filings • 0 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
11
Submitted to NHTSA ODI
Crash-Citing Complaints
2
Filings citing a collision
Fire-Citing Complaints
0
Filings citing smoke or fire
Complaints Reporting Injuries
0
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2020 Cadillac CT6

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 54.5% of complaints

Powertrain & Transmission

6 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#2 Problem Area 27.3% of complaints

Brakes & Traction Control

3 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report
#3 Problem Area 18.2% of complaints

Driver Assistance & Safety Tech

2 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report
#4 Problem Area 9.1% of complaints

Wheels & Tires

1 owner complaint submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#5 Problem Area 9.1% of complaints

Body & Structure

1 owner complaint submitted to NHTSA ODI
⚠️ 1 crash report
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Recent NHTSA Owner Reports for 2020 Cadillac CT6

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Powertrain & Transmission NHTSA ODI ID: #11690488
Filed: 09/30/2025

"The vehicle was shifting harshly and my wheels were experiencing lock up while in motion which was very dangerous. I experienced this on the parkway as well as streets and almost had a few accidents due to this problem. I drive my wife and children in this vehicle. Our safety and lives were put at..."

Incident Date: 06/30/2025 • Raw NHTSA Component: POWER TRAIN,WHEELS
Powertrain & Transmission NHTSA ODI ID: #11673799
Filed: 07/15/2025

"The contact owns a 2020 Cadillac CT6. The contact stated while driving 65 MPH, the transmission seized, and the vehicle was coasted over to the right side of the roadway while waiting for tow service. A dealer as contacted. The vehicle was towed to the dealer where it was diagnosed with..."

Incident Date: 05/15/2024 • Raw NHTSA Component: POWER TRAIN
Powertrain & Transmission NHTSA ODI ID: #11667446
Filed: 06/17/2025

"The contact owns a 2020 Cadillac CT6. The contact received notification of NHTSA Campaign Number: 25V148000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that while his wife was driving at an undisclosed speed, the vehicle jerked before slamming into..."

Incident Date: 12/17/2024 • Raw NHTSA Component: POWER TRAIN
Powertrain & Transmission NHTSA ODI ID: #11666008
Filed: 06/10/2025

"The contact owns a 2020 Cadillac CT6. The contact received notification of NHTSA Campaign Number: 25V148000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact..."

Incident Date: 03/06/2025 • Raw NHTSA Component: POWER TRAIN
Powertrain & Transmission NHTSA ODI ID: #11662581
Filed: 05/22/2025

"See attached document for complaint."

Incident Date: 04/24/2025 • Raw NHTSA Component: POWER TRAIN
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for Cadillac CT6

Reported defect complaint volume across sibling model years (2016–2020)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2016 Cadillac CT6 11 3 3 View 2016 Problems →
2017 Cadillac CT6 26 0 2 View 2017 Problems →
2018 Cadillac CT6 12 0 2 View 2018 Problems →
2019 Cadillac CT6 16 0 4 View 2019 Problems →
2020 Cadillac CT6 Current Page 11 2 2 Current
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2020 Cadillac CT6

Complete distribution of consumer defect reports across all 7 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Powertrain NHTSA category: POWER TRAIN 5 0 0 0 0
POWER TRAIN,WHEELS 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 1 0 0 0 0
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 1 0 0 0
Structure & Body NHTSA category: STRUCTURE 1 1 0 0 0
SUSPENSION,SERVICE BRAKES 1 0 0 0 0
UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (11). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.

Related Official Reports for 2020 Cadillac CT6

Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year

Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.