2019 CADILLAC XT5 Steering Problems

We got the message that our steering may be impacted and then our temperature gauge wasn’t working nor the stop/start feature. Trip to service dealer resulted in a $1,186.14 repair for the replacement of the thermostat. This car only has 37,269 miles. We were told by service tech this is a common issue in GM models and this year of car. This was a financial hardship on us and our well maintained, and rarely used, vehicle. How can GM know this is an issue and not offer remedy thru a recall?

Steering assist disengaged, low power mode, no temperature read and check engine light. All occurred at 61k miles.

The contact owns a 2019 Cadillac XT5. The contact stated that while his wife was driving approximately 20 MPH, the brake warning light illuminated. A message "Steering Power Reduced" was displayed before the steering wheel became difficult to turn in either direction. The contact stated that one day prior to the failure, the low power steering fluid warning light was illuminated, and the brake fluid was refilled. The contact stated after picking their children from school, the failure occurred. The contact who is an independent mechanic, was able to replicate the failure. The vehicle was taken to the local Auto Zone where the brake fluid was refilled only days after the brake fluid had been refilled. The vehicle was towed to a local dealer to be diagnosed; however, the failure could not be duplicated. The vehicle remained at the dealer for further investigation. The manufacturer was not made aware of...

Georgia

Message Displayed on 2019 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 2017 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.

While traveling home to Louisiana from a vacation, I noticed the engine temperature what stuck on Cold. We also were experiencing loss of power steering, and loss of AC in the car. We stopped at AutoZone in Destin, FL where they completed their FixFinder which reported the thermostat needed to be replaced, being it was stuck in the open position and wasn't properly gauging the engine temperature. Some of the engine fluids were extremely low due to overcompensation because of the thermometer issue. Seeing as we were traveling and not near our local mechanic or dealership, we called around to various auto shops to see who could fit us in same day. The only available shop, without having to spend an additional night in FL, was Pep Boys in Fort Walton, FL. They also let us know they did not have the thermostat compatible with my engine in stock, so...

My vehicle is receiving a notice "Steer Assist is Reduced Drive with Care". Per discussion with the dealership this is a result of a thermostat issue causing an issue with the grease temperature in the steering. Based on a bulletin to the dealerships from 2017 this is a known issue and continues to be a known issue for multiple GM vehicles. GM can not supply new thermostats to dealerships and they are just resetting the warning. Steering is a critical issue and GM is aware of an issue and is not recalling or repairing timely.