2018 Cadillac XT5 power train problems
11 owner complaints filed with NHTSA name the power train on the 2018 Cadillac XT5 — 17% of all complaints for this model year.
What owners report
“While driving at highway speeds, I needed to accelerate hard in order to pass another vehicle and while accelerating there was a downshift and increase in RPM. After passing, the RPM remained high even after I took foot off accelerator and it seemed the transmission did not shift back out of lower…”
filed Mar 28, 2026
“While waiting at a light, then the car shut off. Lossing all power. I could not get out of the vehicle, no hazards, no lights, nothing. After several pulls of the door handle I was able to open the door but the hazard light was not able to come one. After 4 attempts to engage break to push start…”
filed Oct 26, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other XT5 years
| Year | Reports | Share |
|---|---|---|
| 2020 XT5 | 7 | 32% |
| 2017 XT5 | 25 | 21% |
Other reported problem areas on the 2018 Cadillac XT5
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.