*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Steering
3 weeks ago all the warning lights went off. The vehicle is still under warranty. I brought it to the dealership. They denied the warranty because of mud that was caked on the undercarriage damaging the wiring and steering assembly. This truck was used on a dirt driveway that gets wet and muddy during the spring. That is what a truck is for. I believe there is a manufacturing defect that caused this problem.
Jul 28, 2026Electrical system
The vehicle experienced repeated high-voltage system warnings and battery conditioning system failures. On multiple occasions the âService High Voltage Systemâ message appeared along with codes P0530 and P1C26 related to the lithium-ion battery conditioning system that controls heating and cooling of the high-voltage battery pack. A critical U3578 code triggered an urgent OnStar alert requiring immediate service. The high-voltage fault was linked to an overcharged HVAC system that caused the A/C compressor to fail. This led to a full HVAC system replacement, radio/infotainment failure, and multiple module reprogrammings. The vehicle could not charge past approximately 65% and showed a…
Apr 1, 2025Air bagsCrash
I feel asleep at the wheel somehow ended up hitting the car in front of me i know adaptive cruisae was on. After i hit the car i woke up and then ended up in a ditchg no airbags deployed or anything. I don't remember what happenedf up until i woke up. which was after i hit the car in front of me.
Jun 11, 2026Electrical system
What component or system failed or malfunctioned, and is it available for inspection upon request? GM and dealerships have report extensive failures of the Telematics Control Module (TCM) that connects onstar and provides GPS navigation ability. There is currently no issued recall. Yes, this can be provided for inspection. How was your safety or the safety of others put at risk? Unlike 2024 vehicles, where Android Auto is supported, providing a safe, hands free workaround for the failure of the TCM, on 2025 models, GM deliberately removed support for Android Auto to force OnStar subscription services, even for basic navigation. This greed-based decision, along with undisclosed failures of…
Mar 5, 2026Unknown or other
On Star Telematics Module is failed and on backorder and no ETA according to dealership and ONSTAR. This is a safety issue as GPS is unavailable, SOS is unavailable, Cannot Locate Vehicle if lost or stolen. The company is very slow in response and this seems to be a global known issue.
Dec 20, 2025Power train
July 2025 RO (mileage ~5,500): Propulsion reduced power; AC loss/no cooling; charging failure; loose weather stripping; shark fin antenna loose; brake pedal clicking on stops; OnStar connectivity loss. July 13-22 2025 (mileage ~6,000): Electrical impairments; reduced acceleration/speed; vehicle not charging; weather stripping missing/loose; shark fin coming loose; brake clicking during stopping; no OnStar connectivity. September 11-October 20 2025 RO (mileage ~8,000-10,000): Intermittent transmission warnings; unexplained gear shifts; backup camera blackouts; infotainment/cluster glitches/freezes; repeated brake pedal clicking; hypersensitive safety system (abrupt hard braking/pulling).…
Dec 21, 2025Vehicle speed control › Cruise control
See attached document for complaint.
Dec 5, 2025Unknown or other
Navigational system is not functioning properly. On Star button remains in on position. All apps on dash will not connect to internet. Google Map cannot locate exact location of vehicle. Also phone app for the vehicle no longer communicating with the truck. Can only use key fab for minor functions. Can only use vehicle for short range driving, since long range driving plans cannot be determined.
Nov 12, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
