2021 Cadillac XT5 Other or unknown Problems

“Took my car to have new brakes. Talked to mechanic about noise from muffler. I was told baffle was broke inside. He told me the airflow could eventually be block which will disable the vehicle. This could happen while driving. My vehicle has 56,000 miles. I see another person stating the same issue. This issue needs to be on recall. I have not repaired yet.”

“I took my SUV to Heritage Cadillac in Lombard, IL for a revving sound while accelerating, specifically from 0-35mph and then acceleration on the highway at higher speeds. It sounded like I was revving the engine even when I wasn't accelerating and stay at a constant speed. There were not any service lights or notification of any issues in my vehicle. The car is at 59,000 miles, I paid $230 for a diagnostic run only to be told it was a Faulty Muffler and needed replacement for $1479.66 as it was not covered in my extended warranty. …”

“When braking — both at low speeds and when slowing from highway speeds (40+ mph) — vehicle feels like engine revs and is still pushing against the brakes. Requires very firm pedal pressure to hold car in place; if brake pressure is eased, vehicle surges forward until it finally settles after several seconds. Concern is intermittent but repeatable. I had a near collision on 10/3/2025 due to this issue. I have been in constant contact with the dealership on this, including the service manager, as well as Cadillac Care. …”

“Car exhaust was making vibration sound brought into dealership and the muffler is broke on the inside. Cadillac repair said it’s not a common occurrence and was not covered under any warranty. Stated it could have broke on the inside due to vibrations. The muffler shouldn’t have just broke inside due to vibrations if the integrity of it has to of been compromised especially if the car isn’t that old and there’s no damage.”