Faulty lifters causing the truck to throw piston rods. This causes malfunction of the traction control, parking brake, transmission, auto locking rear differential. I have had my truck in the shop 3 times for the same issue all within the 1st 10,000 miles. This particular motor has been taken out of production. Upon speaking to mechanic managers at multiple GM dealerships they were not surprised and personally gave me advice on the lemon law. My truck, which is my 1st brand new vehicle, has been out of service now for a total of 45days. I have still made payments up to date. The dealership offers a car or small suv while repairs are being completed, not a truck! Beware of the 5.3litre ecotec3 v8 motor.

- Deltona, FL, USA

Truck started wobbling and the engine light, traction control light, and Peking brake light came on. Also It say service ESC. Truck is making a horrible noise underneath.

- Grand Prairie, TX, USA

Purchased new Chevrolet Silverado AT4 last week and with only 72 miles on the odometer a warning light appeared on instrument cluster stating -??Service Brake Assist-??. Returned to dealer where purchased with 91 miles on odometer 3 days later. Dealer service department confirmed a faulty brake control module and ordered replacement part. New brake control module will arrive in 4 days and will be installed at that time. In the meantime, service manager said vehicle is safe to drive with existing brake control module. This is being submitted because of previous significant vehicle recalls on record for the same issue in 2018-2020. It appears the problem or some iteration of the problem has not been corrected yet in the 2021 models.

- Greeneville, TN, USA

Bought the truck 2 weeks ago and put 500 miles on it. Upon entering I got an alert on the dash saying ESC power steering failure, parking sensor failure and ABS failure drive with caution. All these alerts happened while the vehicle was parked and barely turned on. Sure enough I try to turn the steering wheel and the power steering was out and the parking sensors were out. I didn't try the brakes since I was not moving and parked.

- Oceanside, CA, USA

Got cel code P25A2, C2A02, C2A03 3 times now. First time dealership had no idea (Suburban Chevy sandy or), second time they replaced a wheel speed sensor. Now this is the 3rd time and they have the truck for who knows how long... truck gets the cel while driving.

- Sandy, OR, USA