2025 GMC Sierra 3500 Reliability Data: Problems & Recalls
Avoid The 2025 GMC Sierra 3500 has a complaint index of 80, ranking 5th worst among 21 model years, earning an Avoid verdict. Brakes account for 31% of complaints, with electrical and engine issues close behind, plus one active recall.
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
YearToAvoid Scorecard
- Complaint Index
- 80/100
- #5 of 21 Sierra 3500 years
- Verdict
- Avoid
- vs. other years of this model
- Complaints
- 16
- unique NHTSA reports
- Recalls
- 1
- distinct NHTSA campaigns
- Crashes
- 0
- reported in complaints
- Fires
- 0
- Injuries
- 0
- Top issue
- Brakes
Top 2025 GMC Sierra 3500 problems
Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.
- Brakes5 (31%)
- Electrical System3 (19%)
- Engine3 (19%)
- Other3 (19%)
- Collision Avoidance & Cameras2 (13%)
- Suspension, Wheels & Tires2 (13%)
- Lane Departure1 (6%)
- Steering1 (6%)
- Structure & Body1 (6%)
- Transmission & Powertrain1 (6%)
A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.
What owners report
- Trailer brake systems intermittently disconnect while towing, sometimes cutting braking capacity suddenly during travel.
- A power steering hose reportedly installed incorrectly at the factory detached, causing sudden loss of power steering and brakes.
- The oil cooler has failed on some trucks, letting oil mix with coolant and raising the risk of engine damage.
- Audio and turn signal systems intermittently shut off with no warning sound, sometimes not returning until the truck is restarted.
- The automatic parking brake disengages on inclines after being manually engaged, creating a rollaway risk while towing.
- Rear tires developed sidewall bulges after limited mileage on some trucks.
2025 GMC Sierra 3500 recalls
1 NHTSA recall campaign list this model year.
- NHTSA 26V129000Mar 5, 2026Fuel System11,807 vehiclesOver-the-air fix
Fuel system, gasoline:delivery:fuel pump:control/drive module
General Motors, LLC (GM) is recalling certain 2025-2026 Chevrolet Silverado 3500, and GMC Sierra 3500 vehicles with gasoline engines and dual fuel tanks (RPOs L8T and N2N). The rear fuel pump may not transfer adequate fuel to the front tank, causing an engine stall.
Risk: An engine stall increases the risk of a crash.
Remedy: The vehicle's engine control module (ECM) will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed April 8, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262544420. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 5, 2026.
2025 compared with other Sierra 3500 years
Frequently asked questions
- Is the 2025 GMC Sierra 3500 reliable?
- Based on NHTSA owner complaints and recalls, the 2025 Sierra 3500 has a complaint index of 80 and ranks 5th worst out of 21 model years, giving it an Avoid verdict relative to other Sierra 3500 years.
- What are the most common problems with the 2025 GMC Sierra 3500?
- Brakes make up 31% of complaints, followed by electrical system issues at 19% and engine problems at 19%. Owners also reported issues with collision avoidance/cameras and suspension.
- Does the 2025 GMC Sierra 3500 have any recalls?
- NHTSA lists one recall for the 2025 Sierra 3500, covering the fuel system on gasoline dual-tank models, where the rear fuel pump may not transfer adequate fuel; GM addresses it with an ECM update.
- At what mileage do 2025 Sierra 3500 problems tend to show up?
- The median mileage at failure reported for engine-related complaints is 40,000 miles; other problem areas do not have a reported median mileage.