This is a truck with a split personality that depends entirely on when it rolled off the line. The 1999-2010 models with the 4.0L inline-six built a cult following by refusing to die, owners routinely push them past 200k miles with nothing but oil changes and the occasional sensor swap. The 2011-2020 generation trades some of that bulletproof simplicity for refinement, and while the 3.6L Pentastar has a known oil cooler weakness (plan for a $1,600 repair eventually), plenty of these trucks still deliver reliable service once that's addressed. Then 2021 arrived and quality control fell apart: transmissions failing at 3k miles, electrical systems going dark, the kind of catastrophic breakdowns that make you question whether anyone test-drove these before shipping them. If you're buying used and find a well-kept pre-2021 model, you're getting proven capability. If you're considering anything current-gen, you're gambling on whether Stellantis sorted out the gremlins, and right now, the house is winning.
Here's what you're actually buying: a truck that refuses to quit. Owners routinely push 250k-400k miles on original drivetrains, and the only thing that kills the old ones is frame rust, not mechanical failure. But the 5th gen (2010-2024) makes you pay for that immortality with 16 mpg, a ride like a lumber wagon, and an interior that feels frozen in 2005. You're spending $50k-$60k on something bulletproof but outdated, and unless you're actually using the body-on-frame toughness off-road, a Highlander does the daily-driver job better for less. The brand-new 6th gen modernizes with a turbo-4 and hybrid, but it's too green to trust, dealers are tacking $10k markups onto polarizing styling, and they killed the fold-flat rear seats. If you off-road seriously or want a vehicle that outlives your mortgage, grab a clean 4th gen V8 or late 5th gen and accept the compromises. If you're pavement-only, this is an expensive way to burn gas.