Used GMC Acadia 3rd Gen (2024-Present): Buyer's Guide

Consumer Reports pulled the GMC Acadia's recommended rating in late 2025. The reason tracks almost exactly with its Chevrolet Traverse sibling: brakes. In CarScout's NHTSA complaint data, 23 of 55 complaints against the 2024 Acadia name the service brakes, about 42%. For 2025, it's 36 of 61, or 59%. Same corporate platform, same brake hardware family, the same pattern showing up on two different badges.

This guide covers the redesigned 2024-present Acadia: the larger, turbo-four unibody crossover, not the 2017-2023 body style that came before it. GMC dropped the V6 for this generation and asked a single 2.5L turbo engine to do all the work, on every trim, in every configuration. That swap mostly succeeded. The brakes are the part that didn't.

This Generation at a Glance

The third-generation Acadia launched for the 2024 model year on GM's new mid-size crossover architecture, the same platform underpinning the redesigned Chevrolet Traverse. It's bigger in every dimension than the outgoing 2017-2023 Acadia: 10.6 inches longer and 3.2 inches taller, with nearly 80% more cargo space behind the third row. Every 2024-2026 Acadia runs the same 2.5L turbocharged four-cylinder (RPO LK0), 328 horsepower and 326 lb-ft of torque, paired with an eight-speed automatic (GM's GF8 8T65 unit). There's no engine choice and no V6 option anywhere in this generation.

2024 launched with three core trims: Elevation, AT4, and Denali (plus an Elevation Premium package). Denali picked up a Reserve package partway through the 2024-2025 run, adding standard Super Cruise hands-free driving on top of the Trailering Package Denali already includes. For 2026, GMC added Denali Ultimate, the first Denali Ultimate trim on any unibody GMC crossover, sitting above Denali Reserve with a Vader Chrome grille, Woodland Mahogany leather, massaging front seats, and a standard 8-inch head-up display. The mechanical package carried over unchanged for 2026.

Current pricing and inventory: GMC Acadia market data, with per-year pages for 2024, 2025, and 2026.

Powertrain & Drivetrain Breakdown

One engine, one transmission, across every trim and every model year in this generation. The findings below are organized by system rather than by competing powertrain options, because there aren't any to compare.

The 2.5L Turbo Four (LK0)

Owners generally rate the power delivery well. It's more torque than the old V6 made, arriving earlier in the rev range, and it moves a nearly two-ton crossover without feeling strained. The recurring comfort complaint on AcadiaForum and in owner reviews is engine noise under hard acceleration, a coarser sound than the V6 it replaced, which is a preference issue rather than a reliability one.

The reliability-adjacent thread worth reading before you buy: scattered owner reports of oil consumption between changes on early-production 2024 and 2025 trucks, including at least one forum account of low oil showing up around 5,000 miles. Turbocharged engines running higher crankcase pressures do consume more oil than naturally aspirated engines as a matter of design, and GM's Dexos-certified synthetic oil spec accounts for that. But the volume and frequency of oil-level threads on AcadiaForum is high enough that checking the dipstick yourself, rather than trusting a seller's word that it's "within spec," is worth the two minutes it takes.

The Eight-Speed Automatic

The Acadia's 8-speed shares its GF8 8T65 transaxle family with the Traverse and other GM crossovers. A Chevrolet/GMC preliminary information bulletin, PIP6005A, documents a turbine shaft seal that can be damaged during torque converter installation on 2024 Acadia units, triggering diagnostic code P2817 and an illuminated Service Engine Soon light. GM's fix depends on how the seal failed: if it's cut but intact, technicians replace just the seal; if a section is missing, both the seal and the torque converter get replaced. This is a build-quality issue tied to assembly, not a design flaw that worsens with mileage, but it's worth a specific check on your test drive: cycle through Park, Reverse, Neutral, and Drive several times, cold and after the engine's warmed up, and confirm every gear engages cleanly with no delay or grinding.

Brakes: the generation's defining issue

This is the complaint pattern that matters most on this generation, and it's not unique to the Acadia badge. NHTSA complaint data pulled directly from CarScout shows 55 total complaints against the 2024 Acadia, with 23 of them, roughly 42%, naming the service brakes: soft pedal feel, premature pad and rotor wear, and squeaking that ForCar's independent complaint analysis says has shown up as early as 2,000 miles on some trucks. For 2025, the pattern intensified: 61 total complaints, 36 of them, about 59%, brake-related. Consumer Reports cited this same brake cluster, alongside transmission and electrical complaints, when it pulled the Acadia's recommended rating in December 2025.

AcadiaForum has multiple threads specifically on front brake squeal starting within the first few thousand miles, reported across trim levels rather than isolated to one wheel package. No safety recall has been issued for the brakes as of this writing, which means this is a wear-and-quality complaint pattern, not a stop-sale defect. Budget for a full brake inspection regardless of what the odometer says or what the seller tells you about recent service.

AT4's twin-clutch AWD: what you're actually paying for

Every non-AT4 AWD Acadia (Elevation, Denali) runs a conventional on-demand AWD system. AT4 is the only trim equipped with GM's Active Twin Clutch AWD (RPO G99), using two mechanical clutches built into the rear differential to send torque independently to either rear wheel when it detects wheelspin, true torque vectoring rather than an open differential guessing at grip. AT4 pairs this with an exclusive Terrain Mode, tuned for low-speed off-road driving with a unique pedal map and shift strategy for rock crawling or pulling a boat up a ramp. AT4 also rides on its own off-road-tuned suspension, giving it a slightly different ride character on pavement than the Elevation and Denali share, firmer over small bumps but more composed on washboard gravel. If you're buying an AT4 specifically for the off-road hardware, confirm RPO G99 is present on the build sheet rather than trusting the badge alone; the trim name promises capability the base AWD system genuinely does not match.

Radiator hose leak: the newest documented issue

In March 2026, GM issued technical bulletin PIT6494 covering a radiator inlet hose quick-connect fitting that can leak coolant on 2024-2026 Acadia (and its Traverse and Buick Enclave siblings). GM followed with Special Coverage N262546590, effective April 1, 2026, extending warranty coverage for this specific repair to five years or 60,000 miles from the vehicle's original in-service date, regardless of current ownership. The fix is a seal replacement at the quick-connect fitting where the upper radiator hose meets the radiator, done at no charge under the special coverage. If you're looking at a 2024-2026 Acadia, ask the seller or a dealer whether this coverage has been applied, since it's free money left on the table if it hasn't been checked.

Infotainment and electronics

AcadiaForum's infotainment thread describes the 17.7-inch touchscreen requiring two to five touches before commands register, along with reports of the screen going completely blank and needing a hard reset to recover. A separate thread describes the steering-wheel track button losing function until the engine is restarted. None of this is safety-critical, but it points to the same root cause as most of the electrical complaints in NHTSA's data: new software on a new platform that GM is still settling with updates. Test every touchscreen function during your test drive, not just the map and audio, and ask whether the infotainment software has been updated to the latest version.

Towing and cargo capability

Properly equipped with the Trailering Package, the 3rd-gen Acadia tows up to 5,000 lbs; without it, the base rating drops to 1,500 lbs. Denali comes with the Trailering Package standard, which is also the prerequisite for the Super Cruise option, so a used Denali you're considering for its hands-free driving feature already has the higher tow rating along for the ride. Cargo space behind the third row grew to 23 cu.ft, and folding both rear rows opens up 97.5 cu.ft, a real jump from the outgoing generation and more than most three-row competitors in this price range. Owners who bought this generation for family hauling rather than towing generally report the extra low-end torque from the turbo four makes the truck feel less strained fully loaded at highway speed than the old V6 did, even though the four-cylinder sounds busier doing it.

Third-row headrests: the generation-wide TSB

GM issued a preliminary information bulletin, PIT6184D, covering a gear-mesh defect in the third-row headrest mechanism on 2024 Chevrolet Traverse and 2024 GMC Acadia models. The symptom: the third-row seatback won't fold flat, whether you're using the manual release or the power-fold button, because the headrest catches against the second-row seatback on its way down. GM's fix replaces both third-row headrests under warranty, even if only one side shows the symptom, and it affects every 2024 trim and configuration. Fold the third row flat during your test drive on any 2024 Acadia before you check anything else. It takes thirty seconds and tells you immediately whether this fix has already been done.

Trim Levels

Every trim in this generation shares the identical engine, transmission, and brake hardware. The trim decision here is genuinely about equipment and AWD system, not about avoiding a weaker powertrain somewhere in the lineup.

Which Model Years to Target Within This Generation

In CarScout's NHTSA-sourced data, none of the 2024, 2025, or 2026 Acadia model years carry a formal safety recall as of this writing, confirmed independently by USNews's reliability coverage of the same NHTSA database. That's consistent with the Traverse's sibling platform and means the brake pattern above is a wear-and-quality issue GMC hasn't addressed with a recall campaign, not a defect already fixed fleet-wide. Don't ask a dealer to "confirm a recall was completed" on this generation's brakes; there isn't one to complete. Ask whether the pads and rotors have been inspected, and get the answer in writing.

J.D. Power's predicted reliability score for the 2024 Acadia lands at 84 out of 100, in its "Great" band, while Consumer Reports' owner-reported survey pulled the recommended badge over the same brake, transmission, and electrical clusters detailed above. Both are real signals measuring different things: J.D. Power leans on initial quality and dealer-reported issues, Consumer Reports leans on what owners report after months of driving. Treat the gap as a reason to inspect thoroughly, not a reason to dismiss either source.

Pre-Purchase Inspection Checklist

Brakes, every trim, every year. The single most important check on this generation. Press the pedal cold and note whether it feels firm or soft. Listen for squeaking on a slow parking-lot stop. Ask for maintenance records showing pad and rotor inspection, and don't accept "recently serviced" as proof; owners have reported symptoms appearing within a few thousand miles of a fresh purchase.

Third row, 2024 models specifically. Fold the third-row seatbacks flat using both the manual and power-fold controls if equipped. If either seat catches or won't lie flush against the cargo floor, that's the PIT6184D headrest gear-mesh issue. Ask whether the warranty fix has already been performed.

Transmission shift quality. Cycle through Park, Reverse, Neutral, and Drive multiple times, cold and after 10-15 minutes of driving. Every gear should engage promptly with no hesitation, checking for the turbine shaft seal symptoms covered by PIP6005A.

Radiator hose coolant check. Look under the hood at the upper radiator hose connection for any dried coolant residue or staining, and ask whether the PIT6494 special coverage repair has been done. It's a free fix under warranty through 5 years/60,000 miles regardless of who owns the truck now.

Oil level. Pull the dipstick yourself rather than trusting a seller's word. Turbocharged engines legitimately consume some oil between changes, but confirm the level is within spec before you buy, especially on a truck with unknown maintenance history.

Twin-clutch AWD confirmation on AT4. If the off-road capability is why you're paying the AT4 premium, confirm RPO G99 on the build sheet or window sticker.

VIN recall check. Run every VIN through CarScout's recall check tool before you buy. Nothing is open on this generation as of this writing, but that can change, and it takes thirty seconds to confirm for the specific truck in front of you.

Running Costs

Every truck in this generation is still within GM's bumper-to-bumper coverage or close to its edge, which is exactly why the items above are worth chasing down now while they're free: the radiator hose special coverage, the third-row headrest TSB, and the transmission turbine seal bulletin all apply within warranty and cost the seller nothing to fix. There isn't yet a body of out-of-warranty repair cost data for this specific generation; the oldest trucks are only about two and a half years old. Budget for brake service sooner than you would on a three-row SUV from a generation with a cleaner brake complaint history.

FAQ

Is the 2024-2026 GMC Acadia's turbo four-cylinder reliable? The engine draws few reliability complaints beyond scattered early oil-consumption reports on 2024-2025 trucks. It makes more torque than the outgoing V6 and moves the larger, heavier redesign without strain. The bigger concern in this generation isn't the engine, it's the brakes, which name 42-59% of NHTSA complaints across 2024 and 2025.

What year GMC Acadia should I avoid? No model year in this generation has a fleet-defining defect serious enough to avoid outright. 2024 carries the extra wrinkle of the third-row headrest TSB, so confirm that fix specifically before buying a 2024.

How many miles does a 3rd-gen GMC Acadia last? It's too early for real high-mileage data on this generation; the oldest trucks are only about two and a half years old. The GF8 8T65 transmission and 2.5L turbo architecture are shared across multiple current GM crossovers with an established track record, which doesn't guarantee this generation's longevity but doesn't suggest a shorter one either.

Is the AT4's twin-clutch AWD worth the extra cost? Only if you'll use genuine off-road or slippery-condition capability. The twin-clutch system meaningfully improves torque distribution over the conventional AWD on Elevation and Denali, but you're paying for hardware most family-hauling buyers will never fully exercise.

Does the GMC Acadia have the same brake problem as the Chevy Traverse? Yes. Both share the same mid-size crossover platform and brake hardware family, and both show a rising share of NHTSA brake complaints across the 2024 and 2025 model years in CarScout's data. Treat a used Acadia and a used Traverse from this generation with the same level of brake scrutiny.

Bottom Line

A 2025 Elevation or Denali with documented brake service is the strongest pick in this generation: enough ownership history to know the brake pattern is real without it being a dealbreaker, plus the Denali Reserve Super Cruise option already available. Whatever year you're looking at, put the brake pedal feel and the third-row fold-flat test at the top of your inspection list. Run the VIN, confirm the radiator hose and headrest bulletins have been addressed, and CarScout members can track price drops on specific trims and years at usecarscout.com.

Data sourced from NHTSA's recall and complaint databases via the CarScout API, EPA fuel economy records, GM technical bulletins PIP6005A, PIT6184D, and PIT6494, GM Special Coverage N262546590, Consumer Reports' 2024 and 2025 Acadia reliability coverage, J.D. Power's Acadia reliability data, and owner discussion on AcadiaForum.net. See the full GMC Acadia market data for pricing and inventory.