2016 Lexus LX570 Won't Start

Resolve Starting Issues for Your 2016 Lexus LX570

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 2016 Lexus LX570 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 2016 Lexus LX570 won't start?

When your 2016 Lexus LX570 refuses to start, it's essential to adopt a systematic diagnostic approach to identify the root cause. Begin by checking the battery, as a weak or dead battery is often the primary culprit behind starting issues. Ensure that the battery terminals are clean and securely connected. Next, verify the fuel level in the tank; a low fuel level can sometimes lead to starting problems. If both the battery and fuel levels are adequate, turn your attention to the ignition system. Inspect components like spark plugs and ignition coils for any signs of wear or damage. Utilizing a diagnostic scanner can also be beneficial, as it allows you to read any error codes that may indicate specific issues within the vehicle's systems. Additionally, examine the starter motor to confirm it is functioning correctly, as a malfunctioning starter can prevent the engine from turning over. Lastly, check the fuel system, including the fuel pump and filter, to ensure they are delivering fuel effectively. By following these steps in order, you can efficiently diagnose and address the starting issue with your Lexus LX570.

What are the common problems that could cause a 2016 Lexus LX570 to not start?

When your 2016 Lexus LX570 refuses to start, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the first things to check is the battery; a dead or weak battery is often the culprit, especially if the vehicle has been sitting idle or if extreme weather has taken a toll. If the battery is in good condition, the next step is to inspect the starter motor, as a faulty starter can prevent the engine from turning over. Additionally, consider the fuel system; issues like a clogged fuel filter or a malfunctioning fuel pump can disrupt the flow of fuel necessary for ignition. Don't overlook the ignition switch, as a malfunction here can hinder the electrical system from engaging properly. Lastly, examine the spark plugs and ignition system components, as worn-out spark plugs or faulty ignition coils can significantly impact the starting process. By systematically checking these areas, you can identify and resolve the issue, getting your LX570 back on the road.

How urgent is it to address the starting issue in a 2016 Lexus LX570 that won't start?

When faced with a starting issue in a 2016 Lexus LX570, the urgency to address the problem cannot be overstated. Ignoring the symptoms can lead to further damage to critical components, which may escalate repair costs significantly. Additionally, a malfunctioning vehicle poses serious safety risks; if the issue worsens while driving, it could result in dangerous situations for both the driver and passengers. Moreover, the inconvenience of a car that won’t start can disrupt daily life, leaving you stranded in potentially unsafe locations. Therefore, it is essential to act quickly to diagnose and resolve the starting issue, ensuring the vehicle remains safe, reliable, and convenient for use.

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.

2016 Lexus LX570 Won't Start: Common Issues & Solutions