2019 Subaru BRZ Won't Start

Common Causes for Your 2019 Subaru BRZ Not Starting and How to Resolve Them

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Reviewed by
Aisha
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 Subaru BRZ 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 Subaru BRZ that won't start?

When your 2019 Subaru BRZ refuses to start, the first step is to check the battery, as a dead or weak battery is a common culprit. If the battery seems low, attempt a jump-start to see if that resolves the issue. Next, ensure that there is sufficient fuel in the tank, as running out of gas can often be overlooked. If the basics check out, turn your attention to the ignition system; verify that the ignition switch is operational and try using both keys if you have them. Following this, inspect the fuses related to the starting system for any that may be blown, as this can prevent the vehicle from starting. Pay attention to any sounds when you turn the key; a clicking noise may indicate a problem with the starter motor. Additionally, look for any warning lights on the dashboard that could provide further insight into the issue. Finally, if the problem persists, using an OBD-II scanner to check for error codes can help identify more complex issues that may require professional assistance. By systematically following these steps, you can effectively diagnose and potentially resolve the starting issue with your Subaru BRZ.

What are the common problems that could cause a 2019 Subaru BRZ to not start?

When your 2019 Subaru BRZ 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 you notice dim lights or hear a clicking sound when turning the key. If the battery seems fine, the next step is to inspect the starter motor, as a malfunctioning starter can prevent the engine from cranking. 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. Ignition issues, such as a faulty ignition switch or worn spark plugs, can also lead to starting problems, as they are essential for igniting the fuel-air mixture. Lastly, if all else checks out, the Engine Control Module (ECM) could be at fault, as it plays a critical role in managing engine functions. By systematically evaluating these components, you can identify the root cause of the starting issue and take the necessary steps to resolve it.

How urgent is it to address the starting issue in a 2019 Subaru BRZ?

When dealing with a starting issue in a 2019 Subaru BRZ, understanding the urgency of the situation is essential for any DIY enthusiast. If the vehicle fails to start completely, it is imperative to act quickly to avoid being stranded or causing further damage to the engine or electrical system. Intermittent starting problems, while seemingly less urgent, should not be ignored, as they can escalate into more severe issues if left unaddressed. Additionally, the presence of warning lights, such as the check engine light, signals that there may be underlying problems that require immediate attention to prevent costly repairs down the line. Conducting a diagnostic check can provide valuable insights into the root cause of the issue, helping you prioritize your next steps effectively. Regular maintenance is also a key factor in preventing starting issues, so staying on top of your vehicle's service schedule can significantly reduce the likelihood of urgent problems arising. Ultimately, addressing starting issues promptly not only ensures the reliability of your Subaru BRZ but also enhances your safety on the road.

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Why Your 2019 Subaru BRZ Won't Start: Causes & Solutions