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Cadillac Ct6 Problems

The Cadillac CT6 was a full-size luxury sedan produced from 2016 to 2020, representing Cadillac's flagship sedan and competitor to the BMW 7 Series and Mercedes S-Class. Built on GM's Omega platform with available Super Cruise hands-free driving technology, the CT6 offered impressive technology in a distinctly American package. With 168 complaints and 2 deaths on record, the CT6 faced some first-generation challenges but offered substantial value compared to German competitors.

168
Total Complaints
10
Total Recalls
5
Model Years
2
Reported Deaths

Common Problem Categories

Power Train 68
Service Brakes 16
Forward Collision Avoidance 12
Engine 10
Electrical System 10

Complaints by Model Year

All Model Years

Year ↓ Complaints Recalls Crashes Fires Rating
2020 32 2 4 0 Average
2019 34 4 0 0 Average
2018 26 0 0 0 Average
2017 46 1 0 0 Average
2016 30 3 10 0 Average

Cadillac Ct6 Years to Avoid

The 2017 CT6 first full production year generated the most complaints, with owners reporting issues with the CUE infotainment system, electrical gremlins, and build quality inconsistencies. Some early Super Cruise systems required software updates to function reliably.

Best Cadillac Ct6 Years

The 2018 CT6 benefited from production refinements and improved CUE software. The 2019 CT6-V with the Blackwing V8 represents the performance pinnacle, though finding one requires patience. A well-equipped 2018-2019 CT6 offers substantial luxury at significant depreciation.

Frequently Asked Questions

Why did Cadillac discontinue the CT6?

GM discontinued the CT6 in 2020 as part of restructuring that closed the Detroit-Hamtramck plant. Slow sales and the shift toward SUVs made the full-size sedan segment less viable for Cadillac.

Is the CT6 reliable?

The CT6 is moderately reliable. The 3.6L V6 is proven and durable. Issues center on electronics, infotainment, and early Super Cruise software. Mechanical reliability is generally good.

What is Super Cruise?

Super Cruise is GM's hands-free highway driving system, a precursor to Ultra Cruise. It works on pre-mapped divided highways and monitors driver attention via camera. It was groundbreaking when introduced.

Is the CT6 a good used buy?

Yes. The CT6 depreciates heavily, making three-year-old examples excellent value. A ,000 used CT6 delivers features rivaling ,000 German sedans. Just budget for potential electronic repairs.