2019 Cadillac XT4 engine problems
10 owner complaints filed with NHTSA name the engine on the 2019 Cadillac XT4 — 50% of all complaints for this model year.
What owners report
“I took my suv in for diagnostics to a certified GM dealership at least twice while still under warranty. The check engine light was on, the car was behaving abnormally as well as making unusual concerning noises. The dealership sent me away saying no codes showed up and they couldn’t find a…”
filed Jul 3, 2026
“Recently went to my local Sewell dealership for my routine oil change. With an oil change they do a complimentary multipoint inspection. During the inspection they noticed that my camshaft carrier was leaking and needed to be resealed. The resealing of the camshaft carrier would be around $4,000. I…”
filed May 20, 2026
“I took my car is for service at the Cadillac dealership and they stated there was an oil leak from the camshaft carrier. When I asked more questions they stated it was a fairly common problem with the XT4 and a few other models where there was a faulty seal at the "T-joint" (cam carrier T-joint). My car is no longer…”
filed Mar 18, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Other reported problem areas on the 2019 Cadillac XT4
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.