2018 CHEVROLET SUBURBAN Complaints

While slowing down to make a left hand turn at an intersection, my vehicle suddenly lost power steering and the entire system completely shut down. There was no electronic function during that time. I had to put the vehicle in park, turn the key to the off position and then start it back up. It has happened multiple times, both at low speeds in drive and reverse. This would have caused a collision if there was oncoming traffic at the intersection at that time.

The contact owns a 2018 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle jerked with the check engine warning light illuminated and the vehicle inadvertently lost motive power. The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that he was informed by the dealer that the failure could not be duplicated, and that there would be a fee for a diagnostic test. The manufacturer was not made aware of the failure. The failure mileage was approximately 115,000.

On two occasions, most recently on 6/13/23 the vehicle went from 70 mph to 10 mph very suddenly on an Interstate in heavy traffic--very dangerous. The display indicates an over-heated transmission but the dealer believes its some electrical problem. This 2018 Suburban has an 8 speed auto transmission which has a lot of on line complaints and lawsuit pending.

While driving the vehicle lost all power and after about 20 seconds power came back on. The repair was the battery cables which was apparently very common on the make and model of vehicle. It's unsafe and can cause an accident and apparently happens on the majority of vehicles same year and make.

Vehicle starts dinging with warning - Service Trailer Brake System - and warning - Action Required Steering Assist is Reduced Drive with Care - ABS Light - Traction Control. Power steering goes out and assumedly ABS and Traction Control stop working.

My rear left tire locks when I’m doing sharp turns and I don’t see any traction control lights come on when that happens

The second row - driver's side seat belt no longer was retracting, making the seat unsafe. This belt had been slow to retract since we purchased this vehicle from the dealership in June 2022, but it stopped retracting in mid January 2023. As my extended warranty only covers drive chain, the dealer charged me $627.43 for parts and labor to replace the seat belt. It is disappointing that Chevrolet does not warranty the basic safety equipment for the life of the vehicle.

STARTED ABOUT 3 WEEKS AGO, DRIVER AIRBAG WARNING LIGHT APPEARED ON DASH. RESET IT AND ALERT STAYED OFF FOR A WHILE AND THEN STAYED ON CONSTANTLY. TOOK VEHICLE TO BE REPAIRED, AWAITING PARTS. DEALER STATED IT WAS AIRBAG IN THE OVERHEAD AREA OF THE DRIVER. I DON'T KNOW IF VEHICLE PART HAS BEEN INSPECTED. AWAITING COMPLETION OF THE REPAIR.

Trailer Brake system Service Message Took it to the dealer service department and was told that a diagnostic would be needed to find problem $225, if the wiring harness is indeed defective it would be over $500 in parts and $600 in labor. A picture of the light coming on while driving was produced to the dealer service department. It first appear when driving on the freeway and we have never towed anything with this vehicle. Upon further online research we found out that this is a common and serious problem with GMC and Chevy vehicles like the Canyon, Sierra, Silverado, Yukon, Tahoe, Suburban, Colorado from years 2015-2020.

Vehicle started shaking while accelerating. Independent mechanic and his recommended transmission shop diagnosed an issue with the transmission - specifically the torque converter. Shop said the car was unsafe to drive while waiting for new transmission as it could lose ability to accelerate while driving. When I asked the transmission shop if they felt the previous owner(s) may have abused the car with their driving to cause the issue at a relatively low mileage, they said this was a systemic issue with this vehicle. In fact one of the repair techs had the exact same issue with his personal vehicle at similar mileage (same make / model).