A likeable WK2 with two expensive question marks — the 3.6L valvetrain and, if it's a diesel, the EcoDiesel recall stack — so buy one with the paperwork.

If the truck is a 3.0L EcoDiesel, three engine recalls apply. The crankshaft tone wheel can delaminate and stall the engine (recall 20V-475, later expanded as 23V-411); the exhaust-gas-recirculation (EGR) cooler — part of the emissions plumbing — can crack and cause an intake-manifold fire (20V-699); and the high-pressure fuel pump can fail and starve the engine of fuel, causing a loss of power (22V-406). Chrysler also ran an EPA/CARB emissions-modification program with an extended warranty on these diesels. Every item is free, but a diesel with them undone is a walk-away. Confirm all three by VIN.

Two cheap-part, worth-catching leaks. The plastic oil-filter housing is brittle and cracks — a mechanic warns it is worst 'on the models 2016 and older' and to avoid over-tightening it. And the water pump (especially on the 5.7L HEMI V8) is a known wear item; Chrysler's own bulletin covers 3.6L Pentastar water-pump coolant leaks. Neither is catastrophic if caught, but a car losing coolant between changes needs the housing, pump, or thermostat housing looked at before the leak reaches the oil.

The front active head restraints can deploy without a crash and won't reset. Chrysler ran a warranty extension — program X88 — covering 2011-2018 Grand Cherokee, inspecting the sled-bracket striker pin and replacing a deployed restraint. If a front head restraint has popped forward and stuck, this is the program to ask about. Verify terms in the bulletin.

Two narrow-build recalls: a 3.6L fuel-rail crossover tube that may have been damaged in assembly and can leak fuel (16V-814, Saltillo-built engines), and a left-front brake caliper made from incorrect material that can crack (16V-168). There is also a brake-transmission shift-interlock solenoid that can lock the transmission in Park or Neutral (16V-249). All free; all VIN-specific. Confirm each shows completed.