← View Generic B1958 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1958: B1958: Immobilizer System Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
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 B1958 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The immobilizer system has detected a malfunction, preventing the engine from starting. This code is often caused by a faulty immobilizer sensor, wiring issue, or incorrect key fob battery.
⚠️

Symptoms

  • • Engine won't start
  • • dashboard warning light is illuminated
🔍

Common Causes

  • • Faulty immobilizer sensor
  • • wiring issue
  • • incorrect key fob battery
  • • faulty key fob
  • • or immobilizer system malfunction
🛠️

How to Fix B1958 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the key fob battery and replace it if necessary. 2. Inspect the immobilizer sensor and wiring for damage or corrosion. 3. Clear the code and test the system. 4. If the issue persists, replace the immobilizer sensor or key fob.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

View 2020 Chevrolet SILVERADO 1500 PICKUP Specs

Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

immobilizer sensor Shop ↗ key fob Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

Shop Scanners ↗
🔗

Related Diagnostic Codes

Other codes that may appear with B1958

B1956 Sequential Code

B1956: Seat Position Sensor Circuit Malfunction

Medium
B1957 Sequential Code

B1957: Exterior Lighting Malfunction

Medium
B1959 Sequential Code

B1959: Audio System Malfunction

Medium
B1960 Sequential Code

B1960: 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