AutoCodes – Buick – B3574 Buick

B3574 Buick Code - Trip Odometer A Or B Select Switch Circuit Low

Quick Answer

The Instrument Panel Cluster (IPC) monitors the signal circuit of the internal trip odometer reset switch in order to change odometer displays and to reset the odometer value. Common causes include Faulty Instrument Panel Cluster (IPC), Instrument Panel Cluster (IPC) harness is open or shorted, Instrument Panel Cluster (IPC) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B3574 Buick indicates Trip Odometer A Or B Select Switch Circuit Low.
Common causes: Common causes include Faulty Instrument Panel Cluster (IPC), Instrument Panel Cluster (IPC) harness is open or shorted, Instrument Panel Cluster (IPC) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 491

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3574 Buick Description

The Instrument Panel Cluster (IPC) monitors the signal circuit of the internal trip odometer reset switch in order to change odometer displays and to reset the odometer value. The IPC detects a switch activation when the signal circuit is low. If the IPC detects that the trip odometer reset switch signal circuit is low for greater than 60 seconds, the IPC sets DTC B3574.

OBDII Code B3574 Buick - Trip Odometer A Or B Select Switch Circuit Low - AutoCodes.com — B3574 Buick Code - Trip Odometer A Or B Select Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3574 Buick?

Faulty Instrument Panel Cluster (IPC)
Instrument Panel Cluster (IPC) harness is open or shorted
Instrument Panel Cluster (IPC) circuit poor electrical connection

How to Fix the DTC B3574 Buick?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3574 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B3574 Buick Code

1. What does the OBDII code B3574 mean for a Buick?

The B3574 code indicates a problem with the Trip Odometer A or B Select Switch Circuit, specifically detecting a low voltage condition.

2. What are the symptoms of code B3574 in a Buick?

Common symptoms include the trip odometer not functioning, the inability to switch between trip A and trip B, or the button on the dashboard being unresponsive.

3. What causes the B3574 code to appear?

Causes can include a faulty trip odometer switch, damaged wiring, a poor connection in the circuit, or a malfunctioning instrument cluster.

4. How is code B3574 diagnosed in a Buick?

Diagnosis involves checking for physical damage to the trip odometer switch, inspecting the wiring and connectors, and verifying voltage levels in the select switch circuit.

5. Can I drive my Buick with the B3574 code?

Yes, the vehicle is usually safe to drive, but the trip odometer functionality may be limited until the issue is resolved.

6. How do I fix the B3574 code on my Buick?

Repairs may include replacing a faulty trip odometer switch, repairing damaged wiring or connectors, or reprogramming or replacing the instrument cluster if necessary.

7. What tools are needed to diagnose and fix code B3574?

Youâ€™ll need a scan tool to retrieve and clear the code, a multimeter to check voltage and continuity, and basic tools for removing dashboard components.

8. How much does it cost to repair the B3574 code on a Buick?

The repair cost depends on the root cause, ranging from $50 to $200 for switch or wiring repairs, and more for instrument cluster replacement.

9. Can a blown fuse cause the B3574 code?

A blown fuse is unlikely to cause this specific code, but itâ€™s worth checking the fuse box for related circuits as part of the diagnosis.

10. Is it common for the B3574 code to reappear after repairs?

If the root cause isnâ€™t fully resolved, such as a loose connection or missed wiring fault, the code can reappear. Thorough diagnosis is key to preventing recurrence.