2019 Acura RLX Won't Start

Troubleshooting Common Issues That Prevent Your 2019 Acura RLX from Starting and How to Resolve Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2019 Acura RLX won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take for a 2019 Acura RLX that won't start?

When your 2019 Acura RLX refuses to start, it's essential to approach the problem methodically to identify the root cause. Begin by checking the battery, as a dead or weak battery is a common culprit. If the battery appears fine, inspect the fuel level to ensure there's enough gas in the tank, as running out of fuel can often be overlooked. Next, examine the ignition system, particularly the ignition switch, since a malfunction here can prevent the engine from cranking. If these initial checks don’t reveal the issue, turn your attention to the starter motor; a faulty starter can also lead to starting problems. Additionally, using an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. Finally, inspect the vehicle's fuses, as a blown fuse may disrupt the starting process. By following this structured diagnostic approach, you can effectively troubleshoot the starting issue and determine the necessary steps to get your Acura RLX back on the road.

What are the common problems that could cause a 2019 Acura RLX to not start?

When your 2019 Acura RLX refuses to start, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the first things to check is the battery; a dead or weak battery is often the culprit, especially if the vehicle's lights or electronics are dim. If the battery seems fine, the next step is to inspect the starter motor, as a malfunction here can prevent the engine from turning over. Additionally, consider the fuel system; a clogged fuel filter or a failing fuel pump can hinder fuel delivery, making it impossible for the engine to start. Don't overlook the ignition switch, as a faulty switch can disrupt the electrical flow necessary for starting. Worn or damaged spark plugs can also lead to ignition issues, so checking their condition is essential. Lastly, if your vehicle has a security system, ensure that it is functioning correctly, as a malfunctioning immobilizer can prevent the engine from starting. By systematically checking these components, you can identify and resolve the starting issues with your Acura RLX.

How urgent is it to diagnose and fix the starting issue in a 2019 Acura RLX?

Addressing a starting issue in your 2019 Acura RLX is not just a matter of convenience; it is a critical safety concern that demands immediate attention. Ignoring the symptoms can lead to more severe mechanical failures, which may result in costly repairs down the line. Moreover, a vehicle that fails to start at crucial moments can put you and your passengers at risk, especially in emergency situations. By diagnosing and fixing the problem promptly, you not only enhance your vehicle's reliability but also prevent the frustration of being stranded unexpectedly. Additionally, maintaining your car's functionality is essential for preserving its resale value, as potential buyers are likely to be deterred by unresolved issues. Therefore, if you notice any starting problems, it is imperative to act quickly to ensure your Acura RLX remains safe, reliable, and in optimal condition for daily use.

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2019 Acura RLX Won't Start? Common Causes & Repairs