2017 Toyota Prius Prime Won't Start

Common Causes for Your 2017 Toyota Prius Prime Not Starting and How to Resolve Them

Find Repair Location
Reviewed by
Andrew Hajjar
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 2017 Toyota Prius Prime 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 when a 2017 Toyota Prius Prime won't start?

When your 2017 Toyota Prius Prime won't start, it's essential to approach the problem methodically to identify the root cause. Start by checking the battery, as a dead or weak battery is a common culprit that can easily be overlooked. Next, inspect the key fob; a malfunctioning key fob can prevent the vehicle from recognizing your attempt to start it. Ensure that the gear shift is in the correct position, as some vehicles require it to be in 'Park' or 'Neutral' for the engine to engage. Additionally, verify that there is sufficient fuel in the tank, as running out of gas can lead to starting issues. If these initial checks do not resolve the problem, consider using a diagnostic tool to scan for error codes, which can provide valuable insights into any underlying issues. Finally, inspect the fuses related to the starting system, as a blown fuse can disrupt the starting process. By following these steps, you can effectively troubleshoot the starting issue and potentially resolve it without professional assistance.

What are the common problems that could cause a 2017 Toyota Prius Prime to not start?

When troubleshooting a 2017 Toyota Prius Prime that won't start, it's essential to consider several common problems that could be at play. One of the most frequent culprits is a weak or dead battery, which can result from factors like age, extreme weather conditions, or simply leaving the lights on. If the battery is functioning but the car still won't start, the issue might lie with the starter motor, which can fail and prevent the vehicle from starting reliably. Additionally, problems within the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump, can hinder the engine's ability to start. Ignition system issues, including faulty spark plugs or a defective ignition coil, may also contribute to starting difficulties. Lastly, if your Prius Prime features a keyless ignition system, a malfunctioning key fob or a weak battery in the fob itself could be the reason for the starting problem. Addressing these potential issues can help you diagnose the problem effectively, but if you're unable to resolve it, consulting a qualified mechanic is advisable for a thorough inspection.

How urgent is it to address the starting issue in a 2017 Toyota Prius Prime?

When dealing with a starting issue in a 2017 Toyota Prius Prime, it is essential to recognize the urgency of the situation to prevent further complications. If the vehicle fails to start completely, immediate attention is necessary to avoid being stranded or incurring additional damage. Warning lights, particularly the check engine light, should not be ignored, as they often indicate underlying problems that could escalate if left unaddressed. Even intermittent starting issues warrant prompt investigation, as they may signal a deteriorating condition that could lead to more severe failures over time. For those considering a DIY approach, it is wise to seek a professional diagnosis if the symptoms persist, as this can provide clarity on the urgency of repairs needed. By acting swiftly, you can safeguard your vehicle's performance and ensure your safety on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Troubleshooting 2017 Toyota Prius Prime Starting Issues