The 2018 Acadia is less reliable than other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2018 GMC Acadia owners. The owner comments describe problems respondents experienced with this vehicle.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
"Fan kept running and steering assist reduced message. Thermostat needed replacement"
Anonymous, MA (2018 GMC Acadia Denali 3.6-L V6)""Lost cooling ability via low refrigerant, but no source for the leak could be identified.""
Anonymous, IN (2018 GMC Acadia Denali 3.6-L V6)Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
""The car would not recognize that the selector was in park. Sometimes "fiddling" with it would eventually help, but after a point it wouldn't let me lock the car, electronics wouldn't turn off, and then it just wouldn't start anymore.""
Anonymous, TX (2018 GMC Acadia Unsure 2.5-L 4 Cyl)"Solenoid failed and replaced January 2025"
Anonymous, TX (2018 GMC Acadia Denali 3.6-L V6)Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.
"Had to replace with less than. 80k on vehicle"
Anonymous, MI (2018 GMC Acadia SLE 3.6-L V6)"While driving the wheel sensor read, incorrectly amount of pressure on both sides. I replaced all wheel sensors. No problem after replacements."
Anonymous, AR (2018 GMC Acadia Denali 3.6-L V6)Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
""At 110k miles, the engine light came on. A new thermostat and sensor was required ($1,700).""
Anonymous, WA (2018 GMC Acadia Denali 3.6-L V6)Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
"Was 3rd time getting the shift fixed for the shift to park problem in the 7 years of ownership. Shift is put in park but car doesnt recognize its in park and wont let you turn off the car."
Anonymous, MI (2018 GMC Acadia SLE 3.6-L V6)Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
""Vehicle still looks like new BUT I noticed a weird spot inside the frame of the back passenger door. It was rust! I took it to two repair shops and they wouldnt touch it. They said if we could look inside the rear wheel well, we would see a huge amount of rust. Both said it was not worth repairing and advised us to get rid of the vehicle. This was very upsetting because I really liked this SUV until now b""
Anonymous, OH (2018 GMC Acadia SLT 3.6-L V6)Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
"bad thermostat"
Anonymous, (2018 GMC Acadia Denali 3.6-L V6)Transmission rebuild or replacement, torque converter, premature clutch replacement.
""At 101.5k, the torque converter started slipping. A new transmission was installed @ $9,448.0.""
Anonymous, WA (2018 GMC Acadia Denali 3.6-L V6)Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
"Early on they had to reseat and reseal the rear window. We have had additional problems in heavy rain with leaks above the drivers side window and in the ceiling above the rearview mirror"
Anonymous, IN (2018 GMC Acadia Denali 3.6-L V6)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.
Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.
"Standard AC issue. evaporator leaked and required replacement."
Anonymous, TX (2018 GMC Acadia Unsure 2.5-L 4 Cyl)