BestCarRank
Cadillac

2020 Cadillac CT6

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2020 Cadillac CT6 has 16 owner complaints filed with NHTSA — that's 1.0x the segment average of 16. The most common issue is transmission problems (38% of all complaints), specifically: 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 manufactu. There are 2 recalls issued for this model year.

2 crash reports

16

Total Complaints

2

Recalls Issued

—/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 8)

TRANSMISSION

6 complaints
38%
  • • 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 manufactu
  • • See attached document for complaint.
  • • 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 s
Typical onset: 50K miles Est. repair: $500

“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 manufactu”

— NHTSA complaint filing

When Problems Appear on the 2020 Cadillac CT6

Based on 10 owner complaints that included an odometer reading. Median mileage at time of complaint: 9K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage
0-30K
8
30-60K
0
60-100K
2
100-150K
0
150-200K
0
200K+
0

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (2)

TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS15/10/2019

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.

Fix: 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.

Fuel Cost Calculator for 2020 Cadillac CT6

Live EIA prices
Per year
$2,527
Per month
$211
Per mile
21.1¢
MPG
19
City driving (worst-case MPG)
$3,429/yr
Highway driving (best-case MPG)
$1,778/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today
Current
$4.00
5-year low
$2.78
5-year high
$5.01
Since 2021
+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2020 Cadillac CT6

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$2,143
Full coverage / month
$179
Liability only / year
$710
vs US avg
+28%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (sedan-luxury)1.28x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.00x
= Full coverage estimate$2143

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Cadillac New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
4 yr / 50K mi
Powertrain
6 yr / 70K mi
Hybrid/EV battery
8 yr / 100K mi
Corrosion (rust perforation)
6 yr / 100K mi
Roadside assistance
6 yr / 70K mi

These are the terms for a new Cadillac. If you're buying a used 2020 CT6, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Cadillac dealer for VIN-specific remaining warranty.

Estimated Repair Costs

TRANSMISSION(~50K mi)
$500
BRAKES(~50K mi)
$500
DRIVER ASSIST/CAMERAS(~50K mi)
$500
SUSPENSION(~50K mi)
$500
OTHER(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 16 owner complaints for this specific year, here's what to check or ask about:

  • ☐
    TRANSMISSION: 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 manufactu

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    BRAKES: 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 COULD HEAR THE NOISE BU

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    DRIVER ASSIST/CAMERAS: 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 A HEAD-ON COLLISION

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    SUSPENSION: 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 CONTACT WAS INFORMED THAT

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    RECALLS: Verify all 2 recalls have been completed — free at any Cadillac dealer
  • ☐
    General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Cadillac CT6 — Year Comparison

How does 2020 compare to other years? Fewer complaints = more reliable.

2020
16Average
2019
17Average
2018
13Excellent Reliability
2017
28Below Average
2016
15Above Average
Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
16
Recalls
2
Fire reports
0
Crash reports
2
Injury reports
0
Segment avg
16

Check a Specific VIN

See recalls for YOUR 2020 Cadillac CT6

Compare With

2020 Ford ECOSPORT509 complaints2020 Ford EDGE396 complaints2020 Ford ESCAPE2011 complaints2020 Ford ESCAPE HYBRID358 complaints