Acura MDX Common Problems

ENGINE

Owners of the 2020 Acura MDX frequently report issues with the engine, particularly related to unexpected engine shutdowns and problems with the Auto Idle Stop feature. Common symptoms include the engine stalling or failing to restart after being stopped at traffic lights, with the vehicle often shifting to neutral and requiring a manual restart. Several complaints also mention connecting rod bearing failures, sometimes leading to complete engine replacements. These issues are often reported at mileages ranging from 10,000 to over 100,000 miles. Safety implications are notable, as sudden engine failures during driving or braking can lead to potential collisions, and the inability to restart promptly in traffic poses a risk. This information may be particularly relevant for used car buyers evaluating the reliability and safety of this model.

ELECTRICAL SYSTEM

Owners report frequent issues with the Auto Engine Idle Stop system in the 2020 Acura MDX, where the vehicle fails to restart after coming to a stop, often shifting into neutral or shutting down completely. This problem is commonly described in stop-and-go traffic or at stoplights, with symptoms including the vehicle stalling and requiring manual restarting, sometimes accompanied by illuminated warning lights. Complaints often arise at mileages ranging from 10,000 to 44,000 miles. Safety implications are noted, as the vehicle's unexpected shutdowns occur in active traffic, posing risks of rear-end collisions. Additionally, some owners mention problems with electrical system components like the alternator and emissions lights, though these are less frequently reported than the start/stop issue.

Severity signals: 1 crash, 0 fire, 0 injury reports

ENGINE AND ENGINE COOLING

Owners of the 2019 Acura MDX frequently report issues related to engine and engine cooling, particularly involving the Auto START/STOP feature failing to restart the vehicle after stopping, and engine stalling accompanied by warning lights such as "Transmission Failure." Complaints often mention a delay in recall repairs, with parts not yet available, which affects the resolution of these issues. Symptoms like abnormal engine noises, fuel odors, and transmission jerking are noted, typically occurring at mileages ranging from 1,000 to over 60,000 miles. While no crashes or injuries are reported, one complaint involves a fire, indicating potential safety implications. This data suggests prospective buyers should be aware of these recurring issues and the current unavailability of recall parts.

Severity signals: 0 crash, 1 fire, 0 injury reports

ELECTRICAL SYSTEM

Owners of the 2019 Acura MDX frequently report issues with the auto start/stop system, which can unexpectedly shift the vehicle into neutral, leaving drivers temporarily unable to move. This problem often occurs when the vehicle is stationary, such as at traffic lights, and typically requires the driver to restart the car, posing a potential safety risk in traffic. Complaints also highlight simultaneous warning light activations, including emissions, parking brake, and SH-AWD system faults, often accompanied by low voltage error codes. These electrical issues are commonly reported around the 30,000 to 60,000-mile range. A small number of reports describe total vehicle shutdowns while driving, which could lead to dangerous situations. Fire risk is mentioned in one complaint related to a fuel pump defect, though details are limited.

Severity signals: 0 crash, 1 fire, 0 injury reports

POWER TRAIN

Owners report several power train issues with the 2019 Acura MDX, primarily involving transmission failures and delayed acceleration. Complaints frequently mention symptoms such as jerky movements, hard shifting, and the vehicle entering limp mode or failing to accelerate, often at highway speeds. These issues are noted across a range of mileages, with some occurring as early as 12,000 miles and others around 100,000 miles. Safety implications include a crash due to the vehicle unexpectedly going into neutral and other instances of sudden loss of power, posing risks in traffic or on highways. Buyers considering this model should be aware of these reported transmission problems and the potential for significant repair costs.

Severity signals: 1 crash, 0 fire, 0 injury reports

POWER TRAIN

Owners report frequent issues with the 2022 Acura MDX's powertrain, particularly involving failures of the transmission and transfer case splines. Typical symptoms include a loss of all-wheel drive functionality, where the vehicle operates in front-wheel drive only, often without any warning lights or dashboard indicators. This loss of traction is commonly noted during adverse weather conditions such as rain or snow, posing a potential safety risk due to reduced stability and control. Complaints often mention these issues arising around 60,000 to 80,000 miles, with some cases requiring costly repairs outside the powertrain warranty. Buyers should be aware of these potential defects and the associated safety implications when considering a used 2022 Acura MDX.

POWER TRAIN

Owners of the 2018 Acura MDX frequently report issues with the power train, particularly involving hesitation and stalling when accelerating from a stop. Common symptoms include a delay of 1-2 seconds before the vehicle responds to throttle input, sometimes followed by a sudden lurch forward. Complaints often mention the vehicle stalling or hesitating during gear shifts, especially at lower speeds, and some owners experience these issues from the time of purchase. Reports also highlight safety concerns, with several owners noting near-miss accidents due to these delays, particularly when merging or crossing intersections. These issues are typically reported at various mileage levels, with some owners experiencing problems as early as 30,000 miles.

ELECTRICAL SYSTEM

Owners of the 2018 Acura MDX frequently report issues with the vehicle's electrical system, particularly involving the Auto Start-Stop feature, which can fail to restart the engine after stopping, potentially causing near rear-end collisions. Complaints also commonly mention problems with the vehicle's cameras and sensors, such as the front camera failing, lane keep assist, and adaptive cruise control systems becoming inoperative, often requiring costly replacements. Additionally, several reports highlight random activation of alarms, lights, and the car attempting to start itself, with some owners experiencing battery drainage. A few incidents involve fires, with one associated with a weak battery and overloaded starter, and another following a minor crash. These issues are often noted around 47,000 miles, with some occurring shortly after purchase, posing potential safety risks.

Severity signals: 1 crash, 2 fire, 0 injury reports