GMC Vehicle Issues Overview

GMC's implementation of new technologies and powertrains has led to various issues across their truck and SUV lineup. Understanding these problems can help identify if your GMC vehicle qualifies for lemon law protection.

Key Points

  • Transmission system failures
  • AFM/DFM system issues
  • Super Cruise technology problems
  • Electrical system malfunctions
  • EV system complications

Affected GMC Models

2025 Models

  • Sierra - Transmission issues
  • Yukon - Engine problems
  • Acadia - Electrical concerns
  • Terrain - Infotainment issues
  • Hummer EV - Battery/charging problems
  • Canyon - Performance issues
  • AT4 Models - 4WD system problems
  • Denali Models - Electronic control concerns

2025 Model-Specific Issues

Sierra (2025)

  • 10-speed transmission failures
  • AFM/DFM system malfunctions
  • Engine performance issues
  • Start-stop system problems
  • Super Cruise glitches
  • Software update failures
  • Climate control system issues
  • Electrical system faults

Yukon (2025)

  • 6.2L V8 engine problems
  • Transmission shift quality
  • 4WD system malfunctions
  • Infotainment system freezing
  • Air suspension failures
  • Power distribution problems
  • Battery system faults
  • Sensor calibration errors

Hummer EV (2025)

  • EV system malfunctions
  • Battery management issues
  • Charging system failures
  • Electrical system glitches
  • Climate control malfunctions
  • CrabWalk system problems
  • Range estimation errors
  • Power management concerns

Common GMC Issues

Engine/Powertrain

  • AFM/DFM system failures
  • Transmission problems
  • 4WD system issues
  • EV powertrain malfunctions

Electronics

  • Infotainment system failures
  • Battery management issues
  • Sensor malfunctions
  • Software integration bugs

Safety Systems

  • Super Cruise failures
  • Stability control issues
  • Emergency braking problems
  • Lane keeping malfunctions

Recent GMC Recalls

2025 Recalls

  • Sierra - Transmission control module
  • Hummer EV - Battery system
  • Yukon - Engine management
  • Multiple models - Brake system

2024 Recalls

  • Multiple models - AFM/DFM system
  • SUV models - Air suspension
  • Truck models - Steering system

GMC Warranty Coverage

Basic Coverage

  • 36 months/36,000 miles
  • Bumper-to-bumper protection
  • Includes most components

Powertrain

  • 60 months/60,000 miles
  • Engine and transmission
  • Drive system components

Electric Components

  • 96 months/100,000 miles
  • EV components
  • Battery systems

Filing a GMC Lemon Law Claim

Documentation Required

  • Purchase/lease agreement
  • All repair orders
  • Correspondence with dealer
  • Photos/videos of issues

GMC's Process

  • Initial complaint filing
  • Technical inspection
  • Resolution proposal
  • Settlement negotiation

Common Outcomes

  • Vehicle replacement
  • Full refund
  • Cash settlement
  • Extended warranty

Having Issues With Your GMC?

Our experienced lemon law attorneys can help you understand your rights and fight for the compensation you deserve.

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