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Engine coolingPart report

2020 Cadillac CT5 Engine cooling Problems

Complaints
1about this part
Share
3%of 39 total for the year
Median mileage
75,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2020 Cadillac CT5, 3% of the 39 complaints for this model year. Where a mileage was given, the median is 75,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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. The local dealer was contacted, but the vehicle was not diagnosed or repaired. …”

NHTSA complaint #11705360, filed 2025-12, 75,000 miles

Engine cooling: other model years

YearComplaintsShare of year
202013%

Other parts of the 2020 Cadillac CT5

Transmission and drivetrain
15 complaints
Other or unknown
11 complaints
Electrical system
8 complaints
Engine
7 complaints
Body and structure
5 complaints
Latches, locks and linkages
2 complaints
Steering
2 complaints
Vehicle speed control
2 complaints
Wheels
2 complaints
Air bags
1 complaints
Electronic stability control
1 complaints
Fuel system
1 complaints

← All problems reported for the 2020 Cadillac CT5

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology