2025 GMC SIERRA HD Complaints
View complaints related to 2025 GMC SIERRA HD. The complaints found here are submitted by actual consumers with first hand experience. There are more than 10 complaints submitted for the 2025 GMC SIERRA HD. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.
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2025 GMC SIERRA HD- Spirit Lake, IA
The 2025 GMC Sierra 2500 HD, equipped with the 10-speed "Allison" transmission, rough shifting,
Source: NHTSA WEB SITE