2017 Acura Mdx Safety Report

The 2017 Acura MDX presents a mixed safety picture. While it boasts excellent crash test performance with 5-star overall, frontal, and side ratings from NHTSA, and a respectable 4-star rollover rating, its complaint and recall data reveal significant reliability concerns. NHTSA has received 222 total complaints, including 7 crashes, 3 fires, and 4 injuries, which is notable for a vehicle of this age. A major pattern in complaints revolves around engine issues, with 'ENGINE' and 'ENGINE AND ENGINE COOLING' accounting for 41 and 17 complaints respectively, often detailing catastrophic failures like connecting rod bearing seizure, leading to complete loss of power while driving. This is a critical safety concern, as evidenced by multiple complaints describing vehicles stalling on highways. Recall history further underscores these mechanical vulnerabilities. Six recalls have been issued, two of which directly address fuel pump failures (affecting engine performance and increasing crash risk) and one for engine hard parts (specifically connecting rod bearing manufacturing defects, mirroring many consumer complaints). Other recalls cover exterior lighting issues (reducing visibility and increasing crash risk) and rear brake caliper defects (reducing braking performance). The prevalence of engine-related complaints, particularly those mirroring the recall for connecting rod bearings, suggests that the recall may not have fully encompassed all affected vehicles or that the underlying issue is more widespread than initially identified. Beyond the engine, 'POWER TRAIN' issues are also frequent, with 33 complaints, often describing transmission shifting problems or transfer case failures. Electrical system malfunctions, including issues with advanced driver-assistance systems (ADAS) like LKAS and ACC, are also reported, potentially impacting active safety features. Despite strong passive safety ratings, the recurring and severe mechanical failures, particularly engine stalls, pose a significant risk to occupants and other road users, indicating that while the vehicle performs well in controlled crash tests, its operational reliability and potential for sudden failure are areas of concern.

Our recommendation: Given the excellent crash test ratings but significant recurring engine and powertrain reliability issues, potential buyers should prioritize a thorough pre-purchase inspection by a trusted mechanic, specifically checking for signs of engine knocking or transmission problems, and verify all 6 recalls have been completed.