Hyundai Tucson 2016–2021Common problems, reliability & repair costs

Symptoms: Car hesitates or refuses to move when accelerating from a stop, then engages abruptly with a lurch; shudder and judder at low speed; worse in hot weather and stop-and-go traffic when the dry clutches overheat. Codes like P073F and P172B show up on affected cars. CarComplaints ranks 2017's 'hesitates when starting from a stop' as the model's worst problem, averaging about $4,200 when repairs land out of pocket.

Fix: Hyundai issued TSBs and TCU software updates (including a judder-detection logic update), and dealers replaced clutch assemblies and clutch actuators under warranty on many cars. The Wylie v. Hyundai class-action settlement added reimbursement for DCT repairs and cash compensation for repeat visits. Out of warranty, a clutch-pack and actuator job at an independent shop runs roughly $1,500–$4,500. Software alone tames some cars; others need the hardware.

Sources: NHTSA TSB — DCT judder detection and TCU software update (MC-10201469), CarComplaints — Hyundai Tucson worst problems, BBB National Programs — Hyundai Dual Clutch Transmission class action (Wylie v. Hyundai), Car Talk Community — 2016 Tucson dual-clutch problems

Symptoms: Knocking noise that gets louder with rpm, oil-pressure or check-engine light, loss of power, then sudden engine seizure — sometimes at highway speed. A thrown rod can hole the block and leak oil onto hot components, which is the fire scenario that drove the recall.

Fix: NHTSA recall 21V-727 (September 2021) covers 82,268 MY2017 Tucsons with the 2.0L Nu GDI built May 2016–December 2017: dealers run a bearing-clearance inspection and replace the engine free if it fails, and all affected cars get the Knock Sensor Detection System (KSDS) software. Neighboring 2016 and 2018 model years log the same complaint pattern without being in the recall population, so document any knock and push Hyundai for goodwill. Outside coverage, a replacement engine is a $4,500–$8,000 job.

Sources: RepairPal — Recall 21V-727, connecting rod bearings wear prematurely, NHTSA Part 573 Safety Recall Report 21V-727, Carscoops — 2017 Tucson recall could mean replacement engine

Symptoms: Oil level drops noticeably between changes with no visible leak or blue smoke. Owner reports commonly land around a quart per 1,000 miles; documented forum cases include a 2017 SE burning nearly 3 quarts in 3,000 miles and a 2018 at 3 quarts per 1,000. Run it dry and you're into the bearing-failure scenario above.

Fix: Root causes reported are low-tension piston rings and carbon buildup sticking the rings. The dealer path is a formal oil-consumption test (top off, drive a set mileage, measure); fail it and Hyundai has replaced engines under the powertrain warranty or goodwill — some owners report denial fights first. Paying out of pocket, a piston-ring job or used/reman engine runs $3,500–$7,000. Interim survival is simple: check the dipstick every fill-up and keep oil in it.

Sources: Hyundai Forums — oil consumption problem in Hyundai Tucson, Tucson Forum — denied engine replacement, oil consumption issues, CarComplaints/NHTSA — 2016 Tucson engine problems

Symptoms: Usually none until it's too late — the ABS module can corrode internally and short even with the car parked and off. Hyundai counted at least a dozen engine-compartment fires and told owners to park outside until repaired. An ABS warning light can precede it.

Fix: NHTSA recall 20V-543 (later expanded to roughly 652,000 Tucsons across 2016–2021): dealers install a multi-fuse kit in the ABS circuit and update the software, free. This is a VIN-lookup-and-done item — there is no reason to own one of these with the recall open.

Sources: RepairPal — Recall 20V-543, ABS module shorts causing fire hazard, Hyundai Recall 195 — ABS unit may cause engine compartment fire, The Brake Report — Hyundai Tucson recall grows to 652,024

Symptoms: One door stops responding to the fob or the lock button — often after a period of groaning or slow operation — so the car won't fully lock itself. Failed actuators can also cycle continuously and drain the battery. Owners report repeat failures, sometimes on more than one door.

Fix: Replace the actuator/latch assembly in the affected door. Shop cost runs roughly $260–$430 per door parts-and-labor; it's a very doable DIY (door panel off, three bolts, one connector) with aftermarket actuators available cheap.

Sources: RepairPal — Tucson door lock actuator replacement cost, CARHP — 2016 Hyundai Tucson problems (door lock actuator complaints)

Tools: None required (Phillips screwdriver optional for airbox clips)

1. Unclip the airbox lid in the engine bay, lift it, and pull the old panel filter.
2. Seat the new engine filter with the sealing edge flat, then re-clip the lid.
3. Open the glovebox, squeeze both side stops inward, and let it swing down.
4. Unclip the cabin-filter cover behind it, slide out the old filter, and insert the new one with the airflow arrow pointing down.
5. Re-hang the glovebox stops and close it up.

Tools: Floor jack + jack stands or ramps, 17mm socket or wrench (drain plug), Oil filter wrench, Drain pan + funnel

1. Warm the engine briefly, then raise and support the front of the car.
2. Drain the oil via the 17mm plug; replace the crush washer and torque the plug snug, not gorilla-tight.
3. Swap the spin-on filter (light coat of oil on the new gasket, hand-tight plus a quarter turn).
4. Refill with the spec oil, start, check for leaks, then re-check the level on flat ground.
5. On the 2.0L especially: log the date and mileage, and check the dipstick every fuel fill-up between changes — consumption is this engine's tell.

Tools: Trim removal tools, Phillips screwdriver, 10mm socket, Torx bits (latch bolts)

1. Pry the door panel free (screws hide behind the handle trim and pull cup), then disconnect the switch harnesses and peel back the vapor barrier.
2. Disconnect the lock and latch cables from the interior handle side.
3. Remove the three Torx bolts on the door edge holding the latch/actuator assembly.
4. Fish the assembly out through the door cavity, unplug it, and plug in the new unit.
5. Bolt it back, reconnect cables, and test lock/unlock from the fob and switch before reinstalling the panel.