Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSACURA2015TLX BASE, 2.4L ENGREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTAUDIO VISUAL SYSTEM - TESTING & TROUBLESHOOTING (2 OF 2)SYMPTOM TROUBLESHOOTINGACURALINK SYMPTOM TROUBLESHOOTING INDEX

2015 Acura TLX Base, 2.4L Eng

AcuraLink Symptom Troubleshooting Index

2015 Acura TLX Base, 2.4L EngSECTION AcuraLink Symptom Troubleshooting Index

Symptom	Diagnostic Procedure	Also Check for
AcuraLink services do not work	Symptom Troubleshooting - Refer to: AcuraLink Symptom Troubleshooting - AcuraLink services do not work,	Check the AcuraLink Subscription Status . Check to see which package the client is subscribing to. Different packages include different features Make sure the vehicle is in an open location because a blocked cellular signal can cause service disruptions The Acura server may be experiencing problems
AcuraLink system status indicator does not come on	Symptom Troubleshooting - Refer to: AcuraLink Symptom Troubleshooting - AcuraLink system status indicator does not come on	Check the AcuraLink Subscription Status
AcuraLink system status indicator indicates solid red	Check for telematics system DTCs	Check for DTCs without the HDS
AcuraLink messages cannot be deleted	How to Delete Stored AcuraLink Messages
HDS does not communicate with the vehicle and the telematics control unit	Troubleshoot the DLC circuit - Refer to: DLC Circuit Troubleshooting (L4) (2015-17) or DLC Circuit Troubleshooting (V6, Without CAN gateway) (2015-17) or DLC Circuit Troubleshooting (V6, Without SH-AWD, With CAN gateway) (2015-17) or DLC Circuit Troubleshooting (V6, With SH-AWD and CAN gateway) (2015-17) or DLC Circuit Troubleshooting (L4) (2018-19), or DLC Circuit Troubleshooting (V6, Without SH-AWD) (2018-19), or DLC Circuit Troubleshooting (V6, With SH-AWD) (2018-19)	Check for DTCs without the HDS

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.