← View Generic B1989 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B1989: B1989: Turn Signal/Hazard Light Malfunction

on 2018 BMW X5

Fix Cost

$50 - $200

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

Your Vehicle

2018 BMW

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Important for 2018 BMW X5 Owners

Before starting repairs, verify which engine your 2018 BMW X5 has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B1989 Mean on 2018 BMW X5?

The B1989 code indicates a problem with the turn signal or hazard light system, which may cause the lights to malfunction or not function at all.

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Symptoms

• Turn signals not working
• hazard lights not functioning
• or a combination of both

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Common Causes

• Faulty turn signal switch
• blown fuse
• wiring issue
• or a problem with the turn signal module

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How to Fix B1989 on 2018 BMW X5

1. Check the turn signal switch for any signs of wear or damage. Replace if necessary. 2. Check the fuses and replace if blown. 3. Inspect the wiring for any signs of damage or corrosion. Repair or replace as needed. 4. Check the turn signal module for any signs of failure. Replace if necessary.

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Parts for 2018 BMW X5

Turn signal switch Shop ↗ Fuses Shop ↗ Wiring harness Shop ↗ Turn signal module Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1989

B1987 Sequential Code

💡 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