Transmission Slipping and Rough Shifting

The 9-speed automatic transmission fitted to 2015 and 2016 TLX models is known for harsh shifting, delayed acceleration, and sudden gear drops. Internal clutch wear and valve body calibration are the usual root causes behind these symptoms.

Some drivers report the transmission slipping into neutral while driving, a serious safety concern that should be addressed right away rather than waiting for it to worsen. Acura issued software updates to improve shift timing, but when those do not resolve the issue, our team diagnoses the internal hardware directly rather than repeating the reset.

Engine Stalling and Idle Surge

The 2.4L four-cylinder engine in 2015 TLX models has developed a reputation for intermittent stalling and rough idle. A faulty idle air control component or a software calibration issue is typically the cause of the erratic behavior.

The engine occasionally shuts off at traffic lights or low speeds without warning, a condition serious enough to warrant prompt diagnosis before it happens again in traffic. Our technicians pull live data during idle to catch the fault in action rather than guessing at the cause.

Infotainment Freezing

Infotainment systems across multiple TLX model years suffer from freezing screens, Bluetooth dropouts, and random reboots. Software coding flaws in the head unit are usually to blame rather than a failing physical component.

A frozen screen can turn off the backup camera display, as well as climate and audio controls, making daily driving a real inconvenience. Our team runs the latest software update first and replaces the head unit only when repeated failures point to a hardware issue.

EGR Valve Failure

V6-equipped TLX models can experience EGR valve failure as carbon deposits build up inside the valve over time and prevent it from opening and closing properly the way it should. This disrupts the engine's exhaust gas recirculation process and its ability to manage emissions correctly.

Symptoms include excessive engine vibration, long cranking before the engine starts, and diagnostic codes tied to exhaust gas recirculation. Our team cleans or replaces the valve depending on its condition and clears the related codes to confirm the repair holds.

Fuel Pump Failure

A fuel pump defect affecting certain TLX model years prompted a formal NHTSA recall after pumps inside the fuel tank failed unexpectedly. The impeller in the pump can crack, causing a sudden drop in fuel pressure.

This failure can cause the engine to stall while driving at speed, a genuine safety hazard drivers should not ignore. Our team checks the recall status on every TLX that comes through our doors before any other work begins, and replaces the pump at no cost when the recall applies.