2024 GMC Acadia Reliability Report

Owners report that the 2024 GMC Acadia frequently experiences engine issues, notably engine seizure, often occurring at relatively low mileages, such as between 4,650 and 6,400 miles. Typical symptoms described include sudden warnings of no oil pressure, prompting drivers to immediately pull over, and subsequent engine failure. Several complaints highlight that these issues result in vehicles being stranded on highways, posing a safety hazard. Additionally, owners mention difficulties in obtaining replacement engines, with some vehicles remaining unusable for extended periods. These patterns suggest potential reliability concerns for prospective buyers, particularly regarding engine durability and service availability.

Owners report recurring issues with the taillights of the 2024 GMC Acadia, specifically with the rear driver's side and passenger side lights. Complaints frequently mention taillight failures, including brake lights and turn signals, with some owners experiencing multiple replacements within a short timeframe. Symptoms include non-functioning taillights and faster flashing turn signals, with the first occurrence as early as 90 miles. Replacement parts often have long wait times, with some owners waiting up to six weeks, leading to safety concerns due to reduced visibility and signaling capability. These issues may pose a significant consideration for used car buyers, especially regarding potential delays in repair and parts availability.

Owners report two primary issues with the seats in the 2024 GMC Acadia. The first issue involves the front headrest, which is positioned so far forward that it forces the driver's head into a downward position, potentially affecting visibility and comfort. One owner mentions a concern about the headrest's position in the event of a collision, although no crashes have been reported. The second issue concerns the third row seats, where multiple owners describe an inability to fold the headrests forward, preventing the seats from being lowered fully. These issues are reported without specific mileage, suggesting they may occur irrespective of vehicle use.

Owners of the 2024 GMC Acadia frequently report issues with the vehicle's forward collision avoidance systems, particularly with unexpected braking. The most common symptoms include abrupt braking while reversing with no obstacles present and unexpected braking during highway driving when using the Super Cruise system, as the vehicle mistakenly detects cars in adjacent lanes. These issues are reported to occur soon after purchase, with one owner mentioning the problem persisting over a year. Safety implications include the potential for rear-end collisions due to unexpected braking and the need for manual intervention to prevent collisions during adaptive cruise control use. Buyers should be aware of these issues, especially if considering a vehicle with these systems.

Owners of the 2024 GMC Acadia report issues with the upper radiator hose, which is part of the engine cooling system. Common symptoms include the check engine light activating and coolant loss, which can lead to engine overheating and potential vehicle disablement. Complaints frequently mention that the radiator hose failure occurs without significant advance warning, and parts are reportedly on back order, causing delays in repairs. Safety implications are noted, as sudden coolant loss and engine overheating could pose risks, particularly at highway speeds. Multiple owners describe similar experiences, suggesting this may be a recurring issue for this model year.

Owners of the 2024 GMC Acadia report issues with the vehicle's speed control systems, particularly the adaptive cruise control and Super Cruise features. Complaints frequently mention the adaptive cruise control system engaging heavy braking at highway speeds without visible obstacles, occurring on multiple dates. Additionally, owners describe the Super Cruise system unexpectedly disengaging during lane changes or while driving over hills, sometimes resulting in the vehicle veering into oncoming traffic lanes. These issues have been reported within the first few months of ownership, with vehicles spending significant time at dealerships without resolution. Safety implications include potential traffic accidents due to sudden braking or loss of lane control.