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NHTSA Official DataUpdated Jun 2026How we calculate this
Severe Issues

2020 Cadillac Ct6: Is it reliable?Problems, recalls & buyer verdict

Shopping for a used 2020 Cadillac Ct6? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Current data includes 11 complaints, with Transmission / Drivetrain as the top reported area.

11
Complaints
2
Crashes
β€”
Fires
β€”
Injuries
β€”
Deaths
2
Recalls

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  • Accident & damage history
  • Title brands & odometer rollback
  • Open recalls, theft & lien records
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2020 Cadillac Ct6 Fuel Economy

βœ“ EPA Official Data

EPA-rated fuel economy across 2 2020 Cadillac Ct6 trim configurations. The median figure is shown; range reflects all available trims.

18
MPG City
14–18 range
27
MPG Hwy
25–27 range
21
MPG Combined
17–21 range
420
g COβ‚‚/mile
Regular Gasoline
⚠️Costs $4,000 more than avg vehicle over 5 years

Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 2 trims analysed.

2020 Cadillac Ct6 Safety Ratings

NHTSA 5-Star Program

Official crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.

Overall

Not Rated

Frontal Crash

Not Rated

Side Crash

Not Rated

Rollover

Not Rated
βœ“Stability Control: Standardβœ“Forward Collision Warning: Standardβœ“Lane Departure Warning: Standard

Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.

Quick Answer

Based on NHTSA complaint data, the 2020 Cadillac Ct6 has 11 owner complaints, 2 crash-related complaints, and 2 recall campaigns on record. The most frequently reported component is Transmission / Drivetrain. NHTSA reliability signal: Severe Issues.

2020 Cadillac Ct6 β€” key reliability facts
Make
Cadillac
Model
Ct6
Model year
2020
NHTSA owner complaints
11
Crash-related complaints
2
Safety recall campaigns
2
Top reported component
Transmission / Drivetrain
Reliability signal
Severe Issues
EPA MPG combined
21
EPA MPG city / highway
18 / 27
Fuel type
Regular Gasoline
Electronic stability control
Standard

Common problems

Most common 2020 Cadillac Ct6 problems

Top owner-reported complaint areas and where they often appear.

#1
6
complaints

Transmission / Drivetrain

#2
3
complaints

Brake System

Crash-related:1
#3
2
complaints

Forward Collision Avoidance: AEB

Crash-related:1

Complaint patterns center on Transmission / Drivetrain, Brake System, Forward Collision Avoidance: AEB. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.

Buyer verdict

Should you buy a used 2020 Cadillac Ct6?

The 2020 Cadillac Ct6 shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase.

Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.

Pre-purchase

What to check before buying a used 2020 Cadillac Ct6

Inspection Focus

  • Inspect transmission for smooth shifting and check for any service history.
  • Test brake system for unusual noises, vibrations, or warning lights.
  • Verify all open recalls at nhtsa.gov/recalls.
  • Request service records for transmission and brake components.

Before You Close the Deal

  • Inspect transmission for smooth shifting and check for any service history.
  • Test brake system for unusual noises, vibrations, or warning lights.
  • Verify all open recalls at nhtsa.gov/recalls.
  • Request service records for transmission and brake components.
  • Have a mechanic inspect the vehicle before purchase.

Check the exact car

Shortlist with model-year data. Decide with the exact VIN.

Before buying a used 2020 Cadillac Ct6, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.

AI verdict

What the complaint data suggests

Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology

Based on 11 NHTSA complaints for the 2020 Cadillac CT6, the data suggests potential issues with the transmission/drivetrain and brake system. Two crash-related complaints were reported, but the low sample size limits confidence. Buyers may want to inspect these areas closely.

Key Findings
  • Transmission / Drivetrain accounts for 6 of 11 complaints, the most reported component.
  • Brake System has 3 complaints, the second most common issue.
  • Two crash-related complaints were reported, though details are limited.
Top Concerns
  • Transmission / Drivetrain issues are the most frequent complaint.
  • Brake System problems are a recurring theme.
  • Forward Collision Avoidance: AEB has 2 complaints, indicating possible sensor or system malfunctions.
Data note: NHTSA complaints are consumer-submitted and do not confirm a manufacturing defect. Only 11 complaints for one model year provide low statistical confidence. Complaints may reflect owner reporting bias rather than true failure rates.

Full breakdown

All 2020 Cadillac Ct6 complaints by category

Every owner-reported complaint category filed with NHTSA for the 2020 Cadillac Ct6. Use this as a pre-purchase inspection checklist.

ComponentComplaintsCrashesFiresAvg MileageVolume
Transmission / Drivetrain6β€”β€”β€”
Brake System31β€”β€”
Forward Collision Avoidance: AEB21β€”β€”
Wheel Issues1β€”β€”β€”
Structural Problems11β€”β€”
Uncategorized Issues1β€”β€”β€”
Suspension Failures1β€”β€”β€”

Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.

In their words

Real owner complaints

Read what owners actually reported to NHTSA for the 2020 Cadillac Ct6. Type a keyword (e.g. β€œtransmission”, β€œstalling”, β€œbrakes”) to filter.

Showing 11 most recent complaints

Transmission / DrivetrainSep 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…

Transmission / DrivetrainJul 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 diagnos…

Transmission / DrivetrainJun 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 bef…

Transmission / DrivetrainJun 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 r…

Transmission / DrivetrainMay 22, 2025

See attached document for complaint.

Transmission / DrivetrainApr 11, 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 r…

Structural Problems CrashFeb 24, 2025

latelyi have had a problem with my back hatch door opening by it self the problem the last time it happen just before i enter a car wash now ive got a 7800 bill to repair it

Uncategorized IssuesFeb 19, 2021

THE SUPER CRUISE SELF DRIVING FEATURE DOESN'T WORK AND ERROR MESSAGES CONTINUOUSLY FLASH ON DASHBOARD. IT HAS BEEN AT THE DEALER SINCE 12/16 (>9 WEEKS) WITHOUT ANY RESOLUTION. CALLS, EMAILS, POSTS TO CADILLAC AND GENERAL MOTORS GO UNANSWERED. DEALER TELLS ME CADILLAC ENGINEERS …

Brake System CrashNov 15, 2020

ON FRIDAY, NOVEMBER 13, 2020 I WAS STOPPED AT A STOPLIGHT IN MARYSVILLE, OHIO. IT APPEARED THAT TRAFFIC STARTED TO MOVE, SO I TOOK MY FOOT OFF THE BRAKE. ALMOST IMMEDIATELY THE EMERGENCY BRAKING FEATURE ENGAGED. WHILE THIS TENDS TO STARTLE YOU BECAUSE IT IS SO ABRUPT, ALMOST LIKE…

Suspension FailuresNov 12, 2020

TL* THE CONTACT OWNS A 2020 CADILLAC CT6. THE CONTACT STATED THAT WHILE DEPRESSING THE BRAKE PEDAL, THERE WAS A LOUD SCREECHING SOUND COMING FROM THE WHEELS. THE VEHICLE WAS TAKEN TO WOODLAND CADILLAC LOCATED AT 530 QUALITY CIR #101, WOODLAND, CA 95776, TO BE DIAGNOSED. THE CONTA…

Brake SystemAug 3, 2020

CAR WAS ACQUIRED IN FEBRUARY AND SCRAPING NOISE IN FRONT BRAKES WAS NOTICED IN MAY. WAITED TO SEE IF THE NOISE WOULD GO AWAY BY ITSELF BUT BECAME LOUDER AND TOOK TO CADILLAC DEALER, MILLER CADILLAC IN ELLICOTT CITY MD TELEPHONE 410-750-1100 ON JULY 30. I WAS TOLD THE MECHANIC COU…

Source: NHTSA Complaints Database. Real owner reports for the 2020 Cadillac Ct6.

Safety recalls

2020 Cadillac Ct6 recalls

2 campaigns

NHTSA recall campaigns for the 2020 Cadillac Ct6. 2 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.

Safety recall

TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

#19V731000TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS15/10/2019
Safety recall

POWER TRAIN:AUTOMATIC TRANSMISSION

#25V148000POWER TRAIN:AUTOMATIC TRANSMISSIONJun 3, 2025

Across model years

Compare Cadillac Ct6 model years

Compare complaint and recall volume across years to see whether 2020 lands in a lower-risk or higher-risk part of the model timeline.

Questions

2020 Cadillac Ct6 buying FAQ

Buyer-focused answers based on real NHTSA complaint and recall data for this model year.

Is the 2020 Cadillac Ct6 reliable?β–Ύ

Severe Issues. NHTSA currently shows 11 owner complaints, 2 crash-related complaints, and 2 recall campaigns for this model year. The 2020 Cadillac Ct6 shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.

What are the most common problems with the 2020 Cadillac Ct6?β–Ύ

#1: Transmission / Drivetrain (6 complaints). #2: Brake System (3 complaints). #3: Forward Collision Avoidance: AEB (2 complaints)

At what mileage do problems start on the 2020 Cadillac Ct6?β–Ύ

Mileage data is not available or insufficient for this model year.

How safe is the 2020 Cadillac Ct6?β–Ύ

Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2020 Cadillac Ct6, NHTSA complaints include 2 crash-related reports and 0 fire reports out of 11 total complaints. For controlled crash-test ratings, check nhtsa.gov/ratings.

Does the 2020 Cadillac Ct6 have any recalls?β–Ύ

Yes. 2 NHTSA recall campaigns affect the 2020 Cadillac Ct6. A major recall area is TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. 2 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.

Should I buy a 2020 Cadillac Ct6?β–Ύ

The 2020 Cadillac Ct6 shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Transmission / Drivetrain during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.

Wider context: See the full Cadillac Ct6 reliability report with year-by-year comparison.

Owner Reliability Rating

Rate the 2020 Cadillac Ct6 based on your ownership experience.

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Ratings are based on owner experience and are separate from NHTSA data shown above.

Before you buy

Check the exact vehicle history before you buy

Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.