Message Displayed on 2017 Cadillac XT-5 "Steering Assist is Reduced - Drive With Care". No check engine light, and no apparent loss of steering. Noted that Temperature Gauge and Air Conditioning ceased to work. Suspiciously, a 2019 Cadillac XT-5 that I also own, the identical displayed message came on, with identical same mechanical issue, and just learned that an acquaintance with a newer Chevy Blazer just experienced the identical issue also. All vehicles are equipped with OnStar. Coincidence, OR any possibility that GM or OnStar computers have been hacked into, as OnStar has ability to control various functions of vehicles. To correct the issue (possibly only temporary) was to remove the negative battery cable for a short time, and reattach.

- Delray Beach, FL, USA

Message Powersteering Assist is reduced. This could cause steering problems and a potential collision. Cause is due to failure of thermostat design and insta llation. Believe an investigation is possibly warranted. GM issued a service bulletin making dealers aware of the faulty design in May 2017. But consumers were not advised of the danger.

- Hilton Head Island , SC, USA

The 2017 Cadillac XT5 has a defective thermostat, which sends a false signal that the engine is overheating. Therefore, you get a "steering assist is reduced drive with care", which your steering to be hard and not as effective as it should be. GMC is aware of the problem, but failed to remedy it, but issued a bulletin #17-na-158 in may of 2017. This problem is so widespread that the part to fix the problem is on "back order" everywhere.

- Miramar, FL, USA

To recall department, I purchased the above car in Jan 2021 since that time I had to take this car in for repairs 3 times concerning steering brake problem and reducing speed and also the thermostat problem. In reviewing this the consumer reports I found out that this was one of the worst years of making the xt5 and a recall was done for 2017 but for the cars that was manufactory in 2016. if a car get on the dealers floor in 2017 most likely it was manufactured in 2016. so I want to know why my car hasn't been notify for a recall and I'm having to take this car to the shop on three or four occasions for the same problem. I would like to somebody to look into this situation and reimburse me for my out of pocket expensive. This should be a manufactory problem and GM should be doing the repairs for free. Please feel free to contact me for any additional questions or concerns. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Hyattsville , MD, USA

Stabilize warning keeps coming on and says to set parking break as well. Reading about this, it is a very common warning that causes the stability sensors to fail and increase likelihood of a crash for something that is supposed to be a saftey feature on this vehicle. This creates an unnecessary saftey hazard that Cadillac will not admit to or fix. This seems to only happen when sitting still at a stop light or stop sign.

- Dayton, TX, USA

Purchased new XT5 in Feb 2017, currently 8300 miles. After starting my vehicle and shifting into reverse, the transmission makes an loud bang and lurches backward. The first time it occur in May 2017 it caught me off-guard and the vehicle moved backwards about 3 feet. Since then this has occurred about 12 times and have returned the vehicle to the dealer for service, no issues found or repeated. Returned the vehicle again 8/28/17 for service for the same reason. Also the suspension is very rough, wheels fell like they are constantly shaking, large bumps in the road cause the vehicle to loose traction and deviate from lane of travel. Steering makes a loud whining/clicking noise. Steering was service in July and found loose mechanical item. 3 weeks later the same noise has returned. I believe the way the vehicle handles bumps in the road is causing the steering issue. Driving around curves and hitting a bump or depression in the road causes the vehicle to skip across the road surface and momentarily loose traction and steering control. Driving the same XT5 loaner car, does not have these suspension issues. Additionally, the audio randomly stops working, turning the car off/on allows audio to start working again.

- Westampton, NJ, USA

I was driving in traffic, about 45mph, when the parking brake came on, I got a check engine light, service brake assist, service stabilitrack and one other light on. I managed to keep it running enough to not get rear-ended, but it is not safe. The dealer now has it, and I am in a loaner. The car has less than 2000 miles on it, and this is the second check engine light (the first did not involve the parking brake), but the dealer did not find a concrete problem for the light. Is this going to turn into a recurring problem? it is very definitely not safe.

- Norfolk, VA, USA

Multiple issues with garage remote control buttons not functioning. Issue with driver seat not vibrating when vehicle Venture out of lane with "lane assist" feature on. Vehicle shut down while driving on highway sending multiple warnings about engine malfunction, parking brake on, etc.

- Orlando, FL, USA