| GMT900 (2007-2013) | Vortec 4.8L / 5.3L / 6.0L / 6.2L V8 | $550-$850 | 4/5 | Intake manifold gasket leaks on 5.3L (common after 80k mi); Oil consumption on high-mileage 5.3L Vortec; Instrument cluster failure (gauge sticking/dead); Rear brake line corrosion in salt-belt states | Best used value - proven drivetrain, cheapest to repair |
| K2XX (2014-2018) | EcoTec3 4.3L V6 / 5.3L V8 / 6.2L V8 | $600-$950 | 3/5 | AFM (Active Fuel Management) lifter failure on 5.3L - $3,000-$5,000 repair; 8-speed (8L90) transmission shudder / torque converter issues; A/C condenser leaks; Carbon buildup on intake valves (direct injection models) | Good daily driver if AFM lifter history is clean - check service records |
| T1XX (2019-2024) | 2.7L Turbo I4 / 5.3L V8 / 6.2L V8 / 3.0L Duramax Diesel | $480-$800 | 4/5 | DFM (Dynamic Fuel Management) lifter concern - same architecture as K2XX AFM; 10-speed (10L80) transmission improved but still some harsh shift reports; 2.7L Turbo: too new for long-term reliability data; 3.0L Duramax: DEF system issues, DPF regeneration complaints | Best current generation - improved transmission, more engine options |
| T1XX Refresh (2025-2026) | 2.7L Turbo I4 / 5.3L V8 / 6.2L V8 | $350-$550 | 4/5 | Too new for meaningful long-term data; DFM lifter architecture unchanged - monitor for updates; Chevy Complete Care covers 4 oil changes + tire rotations | Latest tech and warranty coverage - lowest early-year costs |