This page covers 7 recalls and EPA fuel economy for the 2020 Cadillac CT4.
23–27 mpg combined
8.7–10.2 L/100km
Compact Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 4 tested variants for this model year.
The 2020 Cadillac CT4 has 7 recalls, the most serious involving the 10-speed automatic transmission, which can suffer internal damage and cause the wheels to lock up while driving.
Two recalls address the roof-rail side-curtain airbags, which may not have been installed correctly and can fail to inflate properly in a crash, reducing protection for occupants. On the brake side, contamination in a sensor connection within the electronic brake boost system can cut communication between the sensor and the booster, causing the brake pedal to require significantly more force than normal to slow or stop the vehicle. Three recalls cover lighting behavior: a software issue can prevent low-beam headlights from turning on automatically at dusk when the switch is in the off or parking lamp position, and the daytime running lights can either fail to turn off when the headlights are on or shut off unexpectedly while the vehicle is moving, reducing how visible the car is to other drivers in both cases.
At a glance
What can fail
The 10-speed transmission may suffer internal damage that causes the wheels to lock up, preventing normal braking and steering.
What the fix does
Dealers will install updated transmission control module monitoring software at no cost to detect and prevent transmission damage.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software issue may prevent low-beam headlamps from turning on automatically at dusk when the multi-function switch is in OFF or PARKING LAMP position, and may cause daytime running lamps to turn off while driving.
What the fix does
Dealers will update the body control module software to restore proper headlamp and daytime running lamp operation.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The daytime running lights stay on when the headlights are turned on, instead of turning off as required.
What the fix does
A dealer will update the body control module software, or the update will be sent remotely to your vehicle, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The daytime running lamps may remain on when the headlamps are turned on, violating Canadian regulations that require them to turn off.
What the fix does
A dealership will update your vehicle's body control module software to correct the lamp behavior.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Roof-rail airbags may not have been installed correctly, which could prevent them from inflating properly during a crash.
What the fix does
General Motors will mail you instructions to have a dealer inspect the roof-rail airbags and reinstall them if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The roof rail side-curtain air bags may not have been installed correctly, which could cause improper deployment during a crash.
What the fix does
Dealers will inspect both roof rail air bags and reinstall them as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Contamination at the sensor connection in the electronic brake boost system may interrupt communication between the sensor and brake boost system.
What the fix does
Dealers will replace the electronic brake boost module at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
