Vehicle Data Hub

2020 Cadillac CT5 problems

NHTSA has received 61 complaints about the 2020 Cadillac CT5, and 25% of them involve drivetrain & axles. After that come electrical system (13%) and engine (13%).

At a glance

Complaints
61 filed with NHTSA
Most reported
Drivetrain & axles 25% of complaints
Crashes and fires
4 and 0
Injuries and deaths
6 and 0
Typical mileage
6,000 miles 18 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Drivetrain & axles 25%
  • Electrical system 13%
  • Engine 13%
  • Body & structure 8%
  • Cruise control 3%
  • Lane departure 3%
  • Latches & locks 3%
  • Steering 3%
  • Wheels 3%
  • Air bags 2%

When problems show up

Complaints by mileage, 2020 Cadillac CT5 Complaints by odometer reading in 20,000-mile steps. The median is about 6,000 miles. 0k to 20k miles: 11 complaints 20k to 40k miles: 0 complaints 40k to 60k miles: 1 complaints 60k to 80k miles: 6 complaints 80k to 100k miles: 0 complaints 100k to 120k miles: 0 complaints 120k to 140k miles: 0 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 6,000 miles
Based on 18 complaints that include mileage. 67% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles11
20k to 40k miles0
40k to 60k miles1
60k to 80k miles6
80k to 100k miles0
100k to 120k miles0
120k to 140k miles0
140k to 160k miles0
160k to 180k miles0
180k to 200k miles0
200k+ miles0

What the data shows

Among the 18 complaints that report mileage, the typical (median) problem appeared at about 6,000 miles.

Safety-related details: 4 complaints mention a crash; 6 injuries reported.

It is also covered by 4 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

I have had many issues with Onstar failing. I bought the 2020 Cadillac CT5 AWD 10/2020. It took Onstar over a month to connect to my car to provide AT&T internet plan (via Onstar). On 4/22/21 I was hit in my driver front & wheel, Onstar failed- never contacted us & the airbags did not deploy. I noticed my Onstar light was red. Onstar was repaired during the body shop repair. Soon after I picked up the car (approximately 1 month) the SRS light came on & Onstar turned red again on 7/31/21.

April 2021 CrashInjury

Purchased my 2020 ct5 in april 2020. Since then the vehicle has been at the dealership 5 times for the same service driver assist and forward collision system unavailable. GM has dispatched a senior advisor to test the vehicle and even left a code reader in the vehicle to track its performance. Messages came on again. I recorded it as instructed and the device was sent back to the GM engineers. It has been over a month today 18 september and still no update as to what's wrong with this car.

Reported at 300 miles, April 2020

The contact owns a 2020 Cadillac CT5. The contact stated that the check engine warning light was illuminated. The contact had noticed an oil leak and that the battery charge was abnormally low. The contact received an alert from OnStar pertaining to the critically low battery. Additionally, the contact noticed that there was an abnormal squishing sound coming from the dashboard, and the contact believed that the sound was coming from an animal that had intruded into the vehicle.

Reported at 75,000 miles, October 2025

Other model years of the CT5

  • 2026
  • 2025
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020