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What Is OTR411 OTR 411?

OTR411 is a free trucking information platform hosted at TRUCKAID.app, built to help truck drivers, owner-operators, and small carriers research brokers, carriers, facilities,…

By Otr411 • Asked Jun 11, 2026

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579 Radar Fault That Wasn’t a Radar Problem — Full Series

Peterbilt 579 Radar Fault That Wasn’t a Radar Problem — Full Series I put this series together because my truck was showing Adaptive Cruise Fault/Inspect Radar, disabling crui…

By Otr411 • Asked Jun 11, 2026

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Part 4 — The Repair and Final Lesson

Part 4 — The Repair and Final Lesson The front R-12 style relay valve had been replaced before, but the connected ABS modulators were not replaced at that time because the sho…

By Otr411 • Asked Jun 11, 2026

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Part 3 — The ABS Fault Was the Missing Piece

Part 3 — The ABS Fault Was the Missing Piece The dash eventually showed an ABS fault: Relay Diagonal 1 / Fault Code 802. That changed everything. A regular scanner did not sho…

By Otr411 • Asked Jun 11, 2026

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Part 2 — The Air Dryer Clue

Part 2 — The Air Dryer Clue The real clue came from the air system. The air dryer had already been replaced more than once. The problem was that the air dryer heater was not w…

By Otr411 • Asked Jun 11, 2026

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Part 1 — When a Radar Fault Wasn’t a Radar Problem

I want to share this experience because it may help another driver or owner-operator avoid chasing the wrong repair. My 2021 Peterbilt 579 started showing an Adaptive Cruise F…

By Otr411 • Asked Jun 11, 2026

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How to Contact OTR411.com

How to Contact OTR411.com Welcome to OTR411.com. Our platform is dedicated to supporting drivers, mechanics, and industry professionals navigating real-world challenges on the…

By Carrier Reported • Asked May 30, 2026

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PAYMENT ALERT: Metro Express Logistics Inc | West Sacramento, CA | MC# 823500

Advisory: Reports indicate significant payment delays and instances where carriers have resorted to collection agencies to recover funds. All service providers are urged to ve…

By Anonymous Driver • Asked Mar 31, 2026

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PAYMENT ALERT: 9206-7586 Quebec Inc (DBA: Ilco Transit) | Montreal, QC | MC# 102172

Advisory: Reports indicate significant payment delays and instances where carriers have resorted to collection agencies to recover funds. All service providers are urged to ve…

By Anonymous Driver • Asked Mar 31, 2026

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PAYMENT ALERT: Georgia Peach Transport LLC | Buford, GA | MC# 1642358

Advisory: Reports indicate significant payment delays and instances where carriers have resorted to collection agencies to recover funds. Current records show their operating…

By Anonymous Driver • Asked Mar 31, 2026

Replies 0

PAYMENT ALERT: Ord Expedite And Logistics Inc | Tinley Park, IL | MC# 536879

Advisory: Reports indicate significant payment delays and instances where carriers have resorted to collection agencies to recover funds. All service providers are urged to ve…

By Anonymous Driver • Asked Mar 31, 2026

Replies 0

PAYMENT ALERT: Freight Runner Inc | Diamond Bar, CA | MC# 873995

Advisory: Reports indicate significant payment delays and instances where carriers have resorted to collection agencies to recover funds. All service providers are urged to ve…

By Anonymous Driver • Asked Mar 31, 2026

Replies 0