{"id":524755,"date":"2026-07-18T11:34:29","date_gmt":"2026-07-18T15:34:29","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=524755"},"modified":"2026-07-18T11:34:29","modified_gmt":"2026-07-18T15:34:29","slug":"2016-chevrolet-traverse-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2016-chevrolet-traverse-pcm-replacement-guide\/","title":{"rendered":"2016 Chevrolet Traverse PCM\/ECM Replacement Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2016 Chevrolet Traverse PCM\/ECM Replacement Guide<\/h1>\n<p class=\"hero-subtitle\">In the 2016 Chevrolet Traverse, the Powertrain Control Module (PCM) and Engine Control Module (ECM) manage fuel delivery, ignition timing, and transmission shifts. Failure in either unit can trigger misfires, stalling, or erratic power delivery, undermining the vehicle\u2019s drivability.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>PCM\/ECM replacement requires 0.9 hours each.<\/li>\n<li>The ECM must be removed carefully to avoid electrostatic damage.<\/li>\n<li>Pre-removal scan captures data; new units are VIN\u2011programmed.<\/li>\n<li>Service bulletins address specific error codes and reprogramming restrictions.<\/li>\n<li>Common symptoms include misfires, no\u2011start, and shifting issues.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>You\u2019ve likely noticed that your 2016 Chevrolet Traverse is stalling, misfiring, or failing to start. These issues often stem from the vehicle\u2019s Powertrain Control Module or Engine Control Module, the brains that coordinate fuel injection, ignition timing, and transmission behavior. Understanding how these modules operate, where they sit, and how to replace them safely can help you restore reliable performance without unnecessary delay. This guide outlines the steps, precautions, and post\u2011install expectations you need to know to keep your Traverse running smoothly.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2016 Chevrolet Traverse<\/h2>\n<p>The PCM in the 2016 Chevrolet Traverse orchestrates the engine\u2019s fuel and ignition maps while also controlling the transmission\u2019s shift points. The ECM focuses on the engine\u2019s combustion cycle, adjusting spark timing and fuel quantity based on sensor inputs. Together, they ensure efficient power delivery and emissions compliance. If either module loses communication with its sensors or fails internally, the vehicle may experience misfires, reduced acceleration, or even a complete no\u2011start condition. replacement engine computers for the 2016 Chevrolet Traverse<\/p>\n<p>Flagship One keeps <a href=\"https:\/\/www.fs1inc.com\/2016-chevrolet-traverse-3-6l-ecm-engine-computer-pcm-ecu-programmed-plug-play.html\">Chevrolet Traverse replacement engine computers<\/a> in stock for exactly this failure pattern.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The PCM and ECM are mounted beneath the dashboard, accessed by removing the lower console panel. First, gently lift the retaining tab marked (1) to release the ECM from its bracket. The ECM\u2019s removal requires 0.9 hours of labor. The PCM shares the same location and also takes 0.9 hours to replace. After removal, reinstall the new unit and secure it with the same bracket. The process follows the book times provided, ensuring a reliable installation without over\u2011torquing or compromising surrounding components.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2016-chevrolet-traverse-pcm-location-diagram.webp\" alt=\"2016 Chevrolet Traverse PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">PCM mounting location on the 2016 Chevrolet Traverse.<\/figcaption><\/figure>\n<div style=\"background:#f7f9fc;border:1px solid #e2e8f2;border-radius:10px;padding:18px 24px;margin:18px 0\">\n<h3 style='margin-top:0'>How to Reach the PCM on the 2016 Chevrolet Traverse<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> any debris from around the control module connector.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the negative battery cable.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the engine wiring harness middle and lower electrical connectors from.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the engine wiring harness upper electrical connector from the ECM.<\/li>\n<\/ol>\n<p style='margin:10px 0 0 0'><em>Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.<\/em><\/p>\n<\/div>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Operation<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Configuration<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Book Time<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.9 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.9 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>Once the new PCM\/ECM has been installed, the factory procedure dictates that the module must be reprogrammed to align with the vehicle\u2019s specific calibration. Because Flagship One units arrive VIN\u2011programmed, the step of capturing and reloading data via the scan tool is already completed. This means the replacement unit is ready for immediate use without further coding. <a href=\"https:\/\/www.fs1inc.com\/2016-chevrolet-traverse-3-6l-ecm-engine-computer-pcm-ecu-programmed-plug-play.html\">a VIN\u2011programmed replacement unit<\/a> for the correct application.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>When the PCM or ECM fails, drivers may notice a loss of power, engine misfires, or the vehicle may refuse to start altogether. The system may also emit diagnostic trouble codes such as <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">P0601<\/a>, indicating a problem with the control module communication. In addition, owners often report erratic shifting, a hesitation when accelerating, or a persistent check\u2011engine light that does not clear after a reset. These symptoms typically signal that the control module has lost its ability to process sensor data correctly.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2016 Chevrolet Traverse<\/h2>\n<p>The 2016 Chevrolet Traverse uses a set of internal trouble codes that point to failures within the Powertrain or Engine Control Modules. The table below lists the codes that have been documented for this vehicle.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Code<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Meaning<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Full Guide<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0601<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal memory checksum error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#0563C1\"><b><u>Full P0601 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0602<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Control module programming error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#0563C1\"><b><u>Full P0602 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0603<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Keep-alive memory (KAM) error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#0563C1\"><b><u>Full P0603 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0604<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal RAM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#0563C1\"><b><u>Full P0604 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0606<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module processor failure<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1\"><b><u>Full P0606 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0611-fuel-injector-control-module-performance\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0611<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0611-fuel-injector-control-module-performance\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0611-fuel-injector-control-module-performance\/\" style=\"color:#0563C1\"><b><u>Full P0611 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><b>P062B<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Module-internal fault<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P062F<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal EEPROM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#0563C1\"><b><u>Full P062F guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0630-vin-not-programmed-incompatible-ecmpcm\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0630<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0630-vin-not-programmed-incompatible-ecmpcm\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0630-vin-not-programmed-incompatible-ecmpcm\/\" style=\"color:#0563C1\"><b><u>Full P0630 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><b>P162C<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Module-internal fault<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Factory Service Bulletins Worth Knowing<\/h2>\n<p>The following factory service bulletins are relevant to PCM\/ECM issues in the 2016 Chevrolet Traverse:<br \/>\n&#8211; #PIP5373B: Program ECM Error E4491\/E4423 \u2013 (Jun 11, 2018)<br \/>\n&#8211; #17\u2011NA\u2011242: Information on Changes to SPS that Warn\/Prohibit Reprogramming a Module With Its Current Calibration \u2013 (Jul 24, 2017)<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Bulletin<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Subject<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">What It Addresses<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Program ECM Error E4491\/E4423 &#8211; (Jun 11, 2018)<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Information on Changes to SPS that Warn\/Prohibit Reprogramming a Module With Its Current Calibr<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2016 Chevrolet Traverse<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep the battery\u2019s charging system healthy to avoid voltage spikes that can harm the ECM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean connector pins regularly to maintain good electrical contact.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use a proper ground strap when working on the powertrain electronics.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump\u2011starting the vehicle with a battery that is significantly lower in voltage.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any diagnostic codes promptly to prevent deeper module degradation.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure connector seals remain intact to protect against moisture and debris.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2016 Chevrolet Traverse is showing signs of PCM or ECM failure, you can choose a traditional repair approach or opt for a refurbished replacement that comes ready to install. Either option can restore reliable performance while keeping your vehicle on the road.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/media\/wysiwyg\/googleshop\/gmtypeE39a\/gm-pcm-typeE39a-1.jpg\" alt=\"Refurbished VIN-programmed PCM for the 2016 Chevrolet Traverse\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 2016 Chevrolet Traverse from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2016-chevrolet-traverse-3-6l-ecm-engine-computer-pcm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2016 Chevrolet Traverse<\/b><\/a> with a lifetime warranty, free shipping and no core charge.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>For the 2016 Chevrolet Traverse, addressing PCM or ECM issues promptly can prevent further drivability problems. Whether you decide on a repair or a replacement, knowing the steps involved helps you maintain the vehicle\u2019s performance and safety.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>If your 2016 Chevrolet Traverse stalls or misfires, a PCM\/ECM fault may be the cause. Follow safe removal and programming steps to restore reliable performance.<\/p>\n","protected":false},"author":1,"featured_media":520133,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,274],"tags":[329,67,411],"class_list":["post-524755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-chevrolet","tag-329","tag-chevrolet","tag-traverse"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2016 Chevrolet Traverse PCM\/ECM Replacement Guide - Flagship One Blog<\/title>\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.fs1inc.com\/blog\/2016-chevrolet-traverse-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2016 Chevrolet Traverse PCM\/ECM Replacement Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"If your 2016 Chevrolet Traverse stalls or misfires, a PCM\/ECM fault may be the cause. 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