← View Generic B1145 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1145: B1145: Climate Control Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B1145 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

This code indicates a malfunction in the climate control system, which may cause issues with temperature, air flow, or humidity.
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Symptoms

  • • Inconsistent air flow
  • • uneven heating or cooling
  • • strange noises
  • • or failure to turn on
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Common Causes

  • • Faulty climate control module
  • • clogged air ducts
  • • malfunctioning blower motor
  • • or faulty temperature sensor
🛠️

How to Fix B1145 on 2020 Chevrolet SILVERADO 1500 PICKUP

Check and clean air ducts and vents Replace faulty climate control module Inspect and replace blower motor if necessary Check and replace temperature sensor if necessary

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

climate control module Shop ↗ blower motor Shop ↗ temperature sensor Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1145

B1143 Sequential Code

B1143: Audio System Malfunction

Medium
B1144 Sequential Code

B1144: Airbag System Circuit Malfunction

High
B1146 Sequential Code

B1146: Door Locks Malfunction

Medium
B1147 Sequential Code

B1147: Power Window Regulator Circuit Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system