← View Generic B1670 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1670: B1670: Body System Security 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 B1670 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1670 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
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Symptoms

  • • Difficulty locking/unlocking doors
  • • alarm system malfunction
  • • security light on dashboard
🔍

Common Causes

  • • Faulty security module
  • • wiring issues
  • • faulty door lock actuators
  • • incorrect security system configuration
🛠️

How to Fix B1670 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check security system configuration and reset if necessary. 2. Inspect and repair or replace faulty wiring. 3. Replace faulty security module. 4. Replace faulty door lock actuators.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

security module Shop ↗ wiring harness Shop ↗ door lock actuators Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1670

B1668 Sequential Code

B1668: Seat Position Sensor Circuit Malfunction

Medium
B1669 Sequential Code

B1669: Body System Code - Lighting Malfunction

Medium
B1671 Sequential Code

B1671: Audio System Fault

Medium
B1672 Sequential Code

B1672: Airbag System Fault

High

💡 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