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Normal driving 40mph brake failure and power steering loss. Towed vehicle to dealership

GMC SIERRA 2500 2025 STEERING

Power steering pump failed when decelerating after 9500 miles. When power steering pump fails, power assisted braking also fails. Upon deceleration, I could not turn the steering wheel at all or stop the vehicle without extreme pressure on the brake pedal. I narrowly avoided impact with a concrete barricade at the entrance to a parking lot. GM issued a technical bulletin (DCS7112) on January 16, 2025 identifying the problem and failure and directing dealerships to replace the pump on inventory vehicles. No mention was made to repair or notify owners of the potential problem.

GMC SIERRA 2500 2025 SERVICE BRAKES

Reverse lamps are not bright.  Camera does not brighten area either.    Very unsafe to reverse in the dark.  Have to touch the brake pedal to be able to see while backing.   Also have tried the LEDs in the mirrors while backing- although the LEDs are bright- lights to see while backing are insufficient on the stop lamps.

GMC SIERRA 2500 2025 EXTERIOR LIGHTING

The contact owns a 2025 GMC Sierra 2500. The contact stated that the front driverâs side door handle failed to operate as needed, and the contact was unable to exit the vehicle through the driverâs side door. The vehicle was taken back to the dealer, and a new handle was ordered. The part was replaced under warranty. Soon after the repair, the liftgate failed to open or close as needed and became inoperable. The vehicle was taken back to the dealer for the liftgate to be serviced under warranty. The manufacturer was not notified of the failure. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 300.

GMC SIERRA 2500 2025 STRUCTURE:BODY:HATCHBACK/LIFTGATE

On highway taking an exit. The brake pedal sank and did not engage at normal pressure, I had to push the brake all the way down  for it to engage. Concurrently the steering wheel locked up where I could not turn the wheel at all. I drove straight through the exit ramp to the entrance ramp, luckily no one was entering the highway at the same time. I very well could have hurt some one else or myself.  The steering wheel finally  engaged where I had full power steering again and I was able to remove my truck off the highway and cautiously drove to a parking lot to get it towed. I have not tried to drive sense  incident as it is at the dealer for service.  The GMC Dealer has not inspected the vehicle yet, they are backed up with other services.  There were no warning lamps at the time nor before the incident. Symptons see bellow.  I have had issues with the brakes and it has been to the dealer 4 times including this incident,   Service issue  #1 at 21,501 miles   -Breaks were pulsating, squealing and rough and it was shaking the steering column - The smell of burning breaks was present after drives -Solution they sanded down the hot spots on both rotors and pads for the front brakes Temporarily fixed the breaking and steering column shaking ( it did not solve the burning break smell problem.   Service issue #2 at 28,142 miles  Breaks were pulsating, squeaking, and steering column shaking  - The smell of burning breaks was still present after drives.  solution new front brake pads and rotors.   Service issue #3 at 39,893 miles  Rear brakes locked up while taking a turn on to a street  Breaks were pulsating Squeaking and steering column shaking Smell of burning breaks is still present after drives solution machine front brake rotors. could not reproduce brake locking issue  Final issue as mentioned above #4 @43,426 miles   I cant help but think the constant break issues were warning signs.

2025 GMC Sierra 2WD — vehicle data sourced from FuelEconomy.gov.

Le GMC Sierra 2WD (2025) est un camion robuste conçu pour le travail et le transport. Avec son moteur V8 et sa transmission automatique à 10 vitesses, il offre une puissance fiable pour vos tâches.

	2020	2021	2022	2023	2024	2025	2026
Prix	—	—	—	$37,600	$38,100–$75,000	—	—
Cylindrée	5.3L	5.3L	5.3L	2.7L	2.7L	2.7 L	3L
Type de carburant	Essence ordinaire	Essence ordinaire	Essence ordinaire	Essence ordinaire	Essence ordinaire	Regular	Diesel
Transmission	Automatique 8 vitesses	Automatique 8 vitesses	Automatique 10 vitesses	Automatique 8 vitesses	Automatique 8 vitesses	8 speed automatic	Automatique 10 vitesses
Type de carrosserie	Pick-up standards 2RM	Pick-up standards 2RM	Pick-up standards 2RM	Pick-up standards 2RM	Pick-up standards 2RM	Pickup Truck	Pick-up standards 2RM

GMC Sierra 2WD (2025) Spécifications