Verdict
2020 Cadillac CT6: Complaints, Recalls & Known Issues
What the public record actually says about the 2020 Cadillac CT6 — every figure below is a NHTSA or EPA number, not an opinion.
The read
Middle-of-the-pack complaint volume for sedan.
Owners filed 11 NHTSA complaints — fewer complaints than 63% of 2020 sedans. Power Train leads the reports (55%). 2 safety recall campaigns on record — check the VIN and remedy terms with a dealer.
Based on NHTSA complaint volume against 2020 sedans, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
Complaints filed
11
Reports to NHTSA, 2020
Safety recalls
2
NHTSA campaigns on record
NHTSA crash test
Not rated
Overall NCAP rating
Combined MPG
19
EPA estimate
Complaint volume vs. segment peers
Fewer complaints than 63% of 2020 sedans
The bar is this car's percentile among 2020 sedans by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
Known issues
Power Train issues lead owner complaints (55% of 11 reports), followed by service brakes (18%).
Share of all 11 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11690488, ODI 11673799, ODI 11667446, ODI 11666008, ODI 11662581.
Recalls(2)
Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.
Power TrainJun 2025 · 25V148000Details +Close −
General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and cause the wheels to lock-up.
Risk: Wheel lock-up while driving increases the risk of a crash.
Remedy: Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.
Tires · 19V731000Details +Close −
General Motors LLC (GM) is recalling certain 2020 Cadillac CT6 vehicles equipped with dealer-installed accessory 20" x 8.50" wheels (RPO 5JO or SHH). The tire pressure monitoring system (TPMS) sensors use the incorrect wireless radio frequency and cannot illuminate the low pressure warning light when the tire pressure drops below the recommended level. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring Systems."
Risk: Drivers may drive the vehicle with low tire pressure without a low tire pressure warning, negatively impacting the vehicle handling and increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace all four TPMS sensors with the correct sensors, free of charge. The recall began December 3, 2019. Owners may contact GM customer service at 1-586-596-1733. GM's number for this recall is N192279200.
A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
2020 Cadillac CT6 4 DR AWD NHTSA source
- Overall
- Not rated
- Frontal
- Not rated
- Side
- Not rated
- Rollover
- Not rated
Fuel economy by trim
| Trim | Engine | Drivetrain | Transmission | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CT6 AWD | 3.6L 6-cyl | All-Wheel Drive | Automatic (S10) | 18 | 27 | 21 |
| CT6 AWD | 4.2L 8-cyl | All-Wheel Drive | Automatic (S10) | 14 | 25 | 17 |
EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.
Before you buy
Useful next checks
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
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Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
2020 Cadillac CT6: frequently asked
What does the complaint record show for the 2020 Cadillac CT6?
Owners filed 11 NHTSA complaints about the 2020 Cadillac CT6 — fewer complaints than 63% of comparable 2020 sedans, so it sits toward the stronger end of its class. That's a signal, not a guarantee about any single car.
What are the most common problems on the 2020 Cadillac CT6?
The most-reported problem areas are Power Train (55% of complaints) and service brakes (18%).
How many recalls does the 2020 Cadillac CT6 have?
2 recalls have been issued that affect the 2020 Cadillac CT6, covering components such as power train. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.
What gas mileage does the 2020 Cadillac CT6 get?
The EPA rates the 2020 Cadillac CT6 between 17 and 21 mpg combined, depending on trim and drivetrain.