{"id":86023,"date":"2023-06-25T15:40:53","date_gmt":"2023-06-25T22:40:53","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=86023"},"modified":"2024-02-01T23:54:18","modified_gmt":"2024-02-02T07:54:18","slug":"10-reasons-why-your-prius-wont-start","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/reasons-why-your-prius-wont-start\/","title":{"rendered":"Reasons Why Your Prius Won\u2019t Start"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_b578ba-6e > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_b578ba-6e > .kt-inside-inner-col,.kadence-column_b578ba-6e > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_b578ba-6e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_b578ba-6e > .kt-inside-inner-col{flex-direction:column;}.kadence-column_b578ba-6e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_b578ba-6e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_b578ba-6e{position:relative;}@media all and (max-width: 1024px){.kadence-column_b578ba-6e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_b578ba-6e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_b578ba-6e qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-9b6842  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-f0acbf\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_f4864d-5f, .wp-block-kadence-advancedheading.kt-adv-heading_f4864d-5f[data-kb-block=\"kb-adv-heading_f4864d-5f\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_f4864d-5f mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_f4864d-5f[data-kb-block=\"kb-adv-heading_f4864d-5f\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_f4864d-5f img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_f4864d-5f[data-kb-block=\"kb-adv-heading_f4864d-5f\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_f4864d-5f summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_f4864d-5f\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Although the Toyota Prius is seen as a reliable daily driver, some owners are left to deal with problems like a no-start condition.<\/li><li>The reasons why your Prius won&rsquo;t start include a dead battery, fuel system issues, and a faulty crankshaft position sensor.<\/li><li>Other reasons behind your Prius&rsquo;s no-start condition are a dead key fob and security system issues.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The <a href=\"https:\/\/carparts.com\/toyota\/prius\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"Toyota Prius\">Toyota Prius<\/a> has been in the market since 2001, and it only gets better every year. The hybrid&rsquo;s beefed-up performance and sleek styling are only some of its impressive features that a lot of car enthusiasts admire.<\/p>\n\n\n\n<p>Unfortunately, upgrades can come with a couple of issues, and the Prius is no exception. Although it&rsquo;s seen as a reliable daily driver, some owners are left to deal with problems, including a no-start condition.<\/p>\n\n\n\n<p>Here are 10 possible reasons why your Prius doesn&rsquo;t start.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dead Battery<\/h2>\n\n\n\n<p>The battery is the heart and soul of a vehicle&rsquo;s electrical system, especially for hybrids like the Prius.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-1024x683.jpg\" alt=\"2016 2017 toyota prius battery toyota usa newsroom\" class=\"wp-image-86025\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-1536x1025.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2016-2017-toyota-prius-battery-toyota-usa-newsroom.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Overcharging is the most common reason why batteries fail prematurely because it causes the active plate material to disintegrate. Image credit: <a href=\"https:\/\/pressroom.toyota.com\/album\/2016-2017-toyota-prius\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"Toyota USA Newsroom\">Toyota USA Newsroom<\/a>.<\/figcaption><\/figure>\n\n\n\n<p>Hybrid vehicles come with a <a href=\"https:\/\/www.carparts.com\/hybrid-drive-battery\/toyota\/prius\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"high-voltage battery pack\">high-voltage battery pack<\/a> and a <a href=\"https:\/\/www.carparts.com\/battery\/toyota\/prius\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"12-volt battery pack\">12-volt battery pack<\/a>. Either one of them can fail and prevent your Prius from starting.<\/p>\n\n\n\n<p>When the high-voltage battery fails, it&rsquo;s also likely that the smaller battery pack will be replaced because it&rsquo;s impossible to condemn a high-voltage battery with a bad 12-volt battery.<\/p>\n\n\n\n<p>In some hybrid vehicles, the 12-volt battery is also capable of starting the engine.<\/p>\n\n\n\n<p>Overcharging is the most common reason why batteries fail prematurely because it causes the active plate material to disintegrate. Excessive vibration or bumping can also produce the same results.<\/p>\n\n\n\n<p>Dim lighting and slow engine cranking are usual indicators of a dying battery. If the battery dies while the vehicle is running, the engine might stall.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>When the high-voltage battery fails, it&rsquo;s also likely that the smaller battery pack will be replaced because it&rsquo;s impossible to condemn a high-voltage battery with a bad 12-volt battery.<\/p><cite><em>&ndash;<\/em><a href=\"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Anthony Harlin, ASE Certified Master Automobile Technician\">Anthony Harlin, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Fuel System Issues<\/h2>\n\n\n\n<p>There are several issues in the fuel system that could prevent your Prius from starting, such as a <a href=\"https:\/\/www.carparts.com\/blog\/common-fuel-pump-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"defective fuel pump\">defective fuel pump<\/a>, <a href=\"https:\/\/www.carparts.com\/fuel-tank\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel tank\">fuel tank<\/a>, <a href=\"https:\/\/www.carparts.com\/blog\/here-are-the-top-4-signs-of-a-bad-fuel-filter\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"clogged fuel filter\">clogged fuel filter<\/a>, and clogged fuel lines.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Defective Fuel Pump<\/h3>\n\n\n\n<p>A defective <a href=\"https:\/\/www.carparts.com\/fuel-pump\/toyota\/prius\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> due to leaks will not create enough pressure to pump fuel to the engine. This can result in power loss or a no-start condition.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clogged Fuel Lines<\/h3>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/fuel-line\/toyota\/prius\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Fuel lines\">Fuel lines<\/a> are nylon, steel, or fuel-resistant tubings that carry fuel to the throttle body or fuel rail. They also return excess fuel to the tank.<\/p>\n\n\n\n<p>A fuel line that&rsquo;s exposed to extremely high temperatures can create a vapor lock. Once this happens, vapor will enter the fuel injectors, causing the engine to stall.<\/p>\n\n\n\n<p>Similar to fuel filters, fuel lines can also get clogged and prevent the right amount of fuel from reaching the injectors.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Faulty Crankshaft Position Sensor<\/h2>\n\n\n\n<p>Basic timing signal in distributorless ignition systems is read off the <a href=\"https:\/\/www.carparts.com\/crankshaft-position-sensor\/toyota\/prius\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"crankshaft position sensor\">crankshaft position sensor<\/a>. In most modern vehicles, the crankshaft position sensor also monitors crank speed variations caused by ignition misfire.<\/p>\n\n\n\n<p>Similar to how the camshaft position works, if the PCM detects the ignition timing is thrown off because of a <a href=\"https:\/\/www.carparts.com\/blog\/the-top-5-bad-crankshaft-position-sensor-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"faulty crankshaft position sensor\">faulty crankshaft position sensor<\/a>, the check engine light will illuminate and the driver will notice symptoms like poor acceleration and fuel economy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dead Key Fob<\/h2>\n\n\n\n<p>A <a href=\"https:\/\/www.carparts.com\/key-fob\/toyota\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"key fob\">key fob<\/a> is a form of a keyless entry system that has a transmitter that broadcasts a signal to the electronic control module (ECU). The ECU is typically located in the trunk or under the instrument panel.<\/p>\n\n\n\n<p>Prius redesigns that come with a push-start button might not start because of a dead key fob. Under this circumstance, <a href=\"https:\/\/www.carparts.com\/blog\/dead-key-fob-battery-symptoms-and-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"replacing\">replacing<\/a> the drained <a href=\"https:\/\/www.carparts.com\/key-fob-battery\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"key fob battery\">key fob battery<\/a> usually resolves the issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Security System Issues<\/h2>\n\n\n\n<p>Late-model Priuses come with advanced security features that aim to protect the vehicle from theft.<\/p>\n\n\n\n<p>Some Prius redesigns come with an engine immobilizer, which is an anti-theft system that prevents the vehicle from starting under certain conditions.<\/p>\n\n\n\n<p>The key fob or key transmits an electric code to the vehicle that should match the code in the immobilizer. If they don&rsquo;t match, the engine won&rsquo;t start at all.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Get a High-Quality Replacement Fuel Pump<\/h2>\n\n\n\n<p>A bad fuel pump is one of the main reasons why your Prius may not start. Problems in the fuel system can lead to more expensive engine trouble. Fortunately, CarParts.com can deliver a high-quality fuel pump to your doorstep with just a few clicks.<\/p>\n\n\n\n<p>At <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a>, we only source our fuel pumps from the most trusted manufacturers in the automotive industry, ensuring the part delivers long-lasting, high-performance service. Furthermore, we ship your order from one of our strategically located distribution centers so you can get it in as fast as two business days. If you aren&rsquo;t satisfied with your new fuel pump, you can return it within 60 days and get a refund.<\/p>\n\n\n\n<p>Make CarParts.com your one-stop shop for competitively priced fuel pumps that can fit your car and your budget. Shop for a <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> that suits your needs today.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The Toyota Prius has been in the market since 2001, and it only gets better every year. The hybrid&rsquo;s beefed-up&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/reasons-why-your-prius-wont-start\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":86026,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[3771,53,3898],"tags":[73,1464,1623,1209,1197,3166,1736,1170,3619,76,261],"ppma_author":[2607,3742],"class_list":{"0":"post-86023","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-evs-and-hybrids","8":"category-features","9":"category-toyota","10":"tag-battery","11":"tag-camshaft-position-sensor","12":"tag-crankshaft-position-sensor-2","13":"tag-fuel-line","14":"tag-fuel-pump-2","15":"tag-hybrid-drive-battery","16":"tag-ignition-lock-cylinder-2","17":"tag-ignition-switch-2","18":"tag-key-fob","19":"tag-toyota","20":"tag-toyota-prius","21":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Reasons Why Your Prius Won\u2019t Start - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Got a Toyota Prius that won\u2019t start? Check out this list of the most common reasons why your Prius won\u2019t turn on.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/reasons-why-your-prius-wont-start\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reasons Why Your Prius Won\u2019t Start - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Got a Toyota Prius that won\u2019t start? Check out this list of the most common reasons why your Prius won\u2019t turn on.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/reasons-why-your-prius-wont-start\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-25T22:40:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-02-02T07:54:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/2019-toyota-prius-toyota-usa-newsroom.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/reasons-why-your-prius-wont-start\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/reasons-why-your-prius-wont-start\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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