The 2020 Cadillac CT6 is a full-size car that came with a choice of 3.6L 6-cyl and 4.2L 8-cyl engines. Even at 6 years old, a damaged or broken-down one still has real value for its parts. Running or not, we'll make you an offer and tow it away for free.
| Body style | Large Cars |
|---|---|
| Engines | 3.6L 6-cyl, 4.2L 8-cyl (turbocharged versions available) |
| Transmissions | Automatic (S10) |
| Drive | All-Wheel Drive |
| Fuel | Regular Gasoline, Premium Gasoline |
| Fuel economy | 14–18 city / 25–27 highway / 17–21 combined MPG |
| EPA annual fuel cost | $3,200–$4,850 a year (EPA estimate at current fuel prices, 15,000 miles) |
| Tailpipe CO₂ | 420–521 grams per mile |
| EPA fuel economy score | 3–4 out of 10 |
| EPA greenhouse gas score | 3–4 out of 10 |
| Gross vehicle weight rating | 5,003–5,618 lb |
| Versions tested by EPA | 2 configurations |
| Age | 6 years |
Specs, fuel cost and emissions from the EPA's fueleconomy.gov data. Your car's exact equipment may differ.
NHTSA lists 2 safety recalls covering the 2020 Cadillac CT6. Open recalls don't stop you from selling or junking the car, but check your VIN at nhtsa.gov/recalls to see which apply to yours.
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.
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…
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.
Owners have filed 11 complaints about the 2020 Cadillac CT6 with NHTSA. 1 report involved a crash.
Complaints are reports from owners and aren't verified by NHTSA. One complaint can list several components. Mileage is the median odometer reading owners reported for that component.
Manufacturers have filed 753 technical service bulletins and communications with NHTSA covering the 2020 Cadillac CT6. These are repair instructions for known issues, not recalls.
2 of them are warranty extensions. Warranty extensions mean the manufacturer agreed to cover a specific repair beyond the normal warranty. They rarely still apply to a car this age, but they point to known weak spots.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PI to help diagnose A/C concern
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
Source: NHTSA manufacturer communications (technical service bulletins).
It depends on its condition, whether major parts like the engine, transmission and catalytic converter are still there, and current scrap and parts prices where you live. Its parts make up much of its value. Enter your ZIP code above for a free offer on your specific car.
Yes. We buy 2020 CT6s that don't start, were in an accident, failed inspection or have a blown engine or transmission. Towing is always free.
Yes. Open recalls don't prevent a junk sale. NHTSA lists 2 recalls for the 2020 Cadillac CT6; you can check whether any are still open on yours with the VIN lookup at nhtsa.gov/recalls.
Usually the title and a photo ID. Rules differ by state, including what to do with your plates and whether to file a notice of sale. Check our state-by-state car title guides for the official forms.
Data retrieved October 2026.
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