--- title: Semi-Truck Mirror Adjustment and Heater Control Module Failure | UpFix description: Heated mirrors or adjustments not working? UpFix repairs semi-truck mirror control modules for safe visibility and convenience. --- [Skip to content](https://info.upfix.com/kb/semi-truck-mirror-adjustment-and-heater-control-module-failure-upfix#main-content) English Show submenu for translations ![logo (2)](https://info.upfix.com/hs-fs/hubfs/logo%20(2).png?width=189&height=56&name=logo%20(2).png) Open main navigation Close main navigation - English Show submenu for translations - Website Website Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [UpFix FAQ's](https://info.upfix.com/kb?hsLang=en) 2. [Commercial Truck](https://info.upfix.com/kb/commercial-truck?hsLang=en) # Semi-Truck Mirror Adjustment and Heater Control Module Failure | UpFix ### **Why Don’t My Mirrors Adjust or Heat Up?** When mirrors stop adjusting or heating, the cause is often an electronic failure in the mirror control module. This board manages current for the adjustment motors and heating elements. Exposure to moisture and constant vibration causes corrosion on the connectors or burnout of the relay transistors. ### **Common Symptoms** - Mirrors won’t move or only move one direction - Mirror heaters not warming up - Fuses keep blowing - No voltage at mirror connector ### **Repair Process** UpFix repairs and tests mirror modules by cleaning contacts, replacing failed transistors, and verifying power output to both adjustment motors and heating elements. ### **Why Repair Makes Sense** Replacing the entire assembly can cost hundreds and still require wiring modifications. Repairing through UpFix ensures compatibility and keeps your original part functioning like new. ### **Supported Brands** Freightliner, Kenworth, Peterbilt, Volvo, International, Mack and others. Get your truck back on the road and keep your costs low. **[Send your part to UpFix](https://www.upfix.com/product-category/other/semi-truck-electronics-repair/)** for professional testing and repair. We’ll restore it to like-new condition, save you up to **80% compared to buying new**, and make it plug-and-play ready when returned. - [FAQs](https://info.upfix.com/kb/faqs?hsLang=en#main-content) - [Shipping](https://info.upfix.com/kb/faqs?hsLang=en#shipping) - [How It Works](https://info.upfix.com/kb/faqs?hsLang=en#how-it-works) - [Warranty and Returns](https://info.upfix.com/kb/faqs?hsLang=en#warranty-and-returns) - [General](https://info.upfix.com/kb/faqs?hsLang=en#general) - [Automotive](https://info.upfix.com/kb/automotive?hsLang=en#main-content) - [ABS Module](https://info.upfix.com/kb/automotive?hsLang=en#abs-module) - [LCD Display](https://info.upfix.com/kb/automotive?hsLang=en#lcd-display) - [Instrument Cluster](https://info.upfix.com/kb/automotive?hsLang=en#instrument-cluster) - [Climate Control](https://info.upfix.com/kb/automotive?hsLang=en#climate-control) - [Mileage Odometer Programming](https://info.upfix.com/kb/automotive?hsLang=en#mileage-odometer-programming) - [ECU/ECM Engine Control](https://info.upfix.com/kb/automotive?hsLang=en#ecu-ecm-engine-control) - [TCM Transmission Control](https://info.upfix.com/kb/automotive?hsLang=en#tcm-transmission-control) - [PCM Power-train Control](https://info.upfix.com/kb/automotive?hsLang=en#pcm-power-train-control) - [Semi-Truck Electronics Repair](https://info.upfix.com/kb/automotive?hsLang=en#semi-truck-electronics-repair) - [FICM Fuel Injector Control Module Repair](https://info.upfix.com/kb/automotive?hsLang=en#ficm-fuel-injector-control-module-repair) - [Power Steering Module](https://info.upfix.com/kb/automotive?hsLang=en#power-steering-module) - [TIPM & Fuse Box](https://info.upfix.com/kb/automotive?hsLang=en#tipm-fuse-box) - [BCM Body Control Module](https://info.upfix.com/kb/automotive?hsLang=en#bcm-body-control-module) - [LCM Light Control Module](https://info.upfix.com/kb/automotive?hsLang=en#lcm-light-control-module) - [ECU Programming](https://info.upfix.com/kb/automotive?hsLang=en#ecu-programming) - [Tail Light Repair](https://info.upfix.com/kb/automotive?hsLang=en#tail-light-repair) - [Tesla Wall Charger](https://info.upfix.com/kb/automotive?hsLang=en#tesla-wall-charger) - [Warranty For Automotive Parts](https://info.upfix.com/kb/automotive?hsLang=en#warranty-for-automotive-parts) - [Tech Support - Auto](https://info.upfix.com/kb/automotive?hsLang=en#tech-support-auto) - [Battery](https://info.upfix.com/kb/automotive?hsLang=en#battery) - [Appliance](https://info.upfix.com/kb/appliance?hsLang=en#main-content) - [Dishwasher Control Board](https://info.upfix.com/kb/appliance?hsLang=en#dishwasher-control-board) - [HVAC/Furnace Control Board](https://info.upfix.com/kb/appliance?hsLang=en#hvac-furnace-control-board) - [Stove/Oven Control Board](https://info.upfix.com/kb/appliance?hsLang=en#stove-oven-control-board) - [Refrigerator Control Board](https://info.upfix.com/kb/appliance?hsLang=en#refrigerator-control-board) - [Microwave Control Board](https://info.upfix.com/kb/appliance?hsLang=en#microwave-control-board) - [Massage Chair Control Board](https://info.upfix.com/kb/appliance?hsLang=en#massage-chair-control-board) - [Warranty For Appliance Control Boards](https://info.upfix.com/kb/appliance?hsLang=en#warranty-for-appliance-control-boards) - [Freezer](https://info.upfix.com/kb/appliance?hsLang=en#freezer) - [Fitness](https://info.upfix.com/kb/fitness?hsLang=en#main-content) - [Elliptical Control Board](https://info.upfix.com/kb/fitness?hsLang=en#elliptical-control-board) - [Treadmill Control Board](https://info.upfix.com/kb/fitness?hsLang=en#treadmill-control-board) - [Stair Climber Control Board](https://info.upfix.com/kb/fitness?hsLang=en#stair-climber-control-board) - [Warranty For Fitness Control Boards](https://info.upfix.com/kb/fitness?hsLang=en#warranty-for-fitness-control-boards) - [Industrial](https://info.upfix.com/kb/industrial?hsLang=en#main-content) - [VFD Inverter/Variable Frequency Drive](https://info.upfix.com/kb/industrial?hsLang=en#vfd-inverter-variable-frequency-drive) - [Servo Driver Controller](https://info.upfix.com/kb/industrial?hsLang=en#servo-driver-controller) - [HMI](https://info.upfix.com/kb/industrial?hsLang=en#hmi) - [Warranty For Industrial Equipment](https://info.upfix.com/kb/industrial?hsLang=en#warranty-for-industrial-equipment) - [Agriculture](https://info.upfix.com/kb/agriculture?hsLang=en#main-content) - [General](https://info.upfix.com/kb/agriculture?hsLang=en#general) - [Commercial Truck](https://info.upfix.com/kb/commercial-truck?hsLang=en) - [Commercial Laundry](https://info.upfix.com/kb/commercial-laundry?hsLang=en) [![Chill listening crop-3](https://info.upfix.com/hs-fs/hubfs/VECTOR%20-%20UpFix%20Registered%20logo-%20transparent.png?width=168&height=55&name=VECTOR%20-%20UpFix%20Registered%20logo-%20transparent.png "Chill listening crop-3")](http://upfix.com) UpFix FAQ's Copyright © 2026, MyAirbags