U2149 Buick Code - Lost Communication With Tire Pressure Monitor System
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Tire Pressure Monitor (TPM) Module, Tire Pressure Monitor Module harness is open or shorted, Tire Pressure Monitor Module 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
- U2149 Buick indicates Lost Communication With Tire Pressure Monitor System.
- Common causes
- Common causes include Faulty Tire Pressure Monitor (TPM) Module, Tire Pressure Monitor Module harness is open or shorted, Tire Pressure Monitor Module 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.
Code U2149 Buick Description
What are the Possible Causes of the DTC U2149 Buick?
- Faulty Tire Pressure Monitor (TPM) Module
- Tire Pressure Monitor Module harness is open or shorted
- Tire Pressure Monitor Module circuit poor electrical connection
How to Fix the DTC U2149 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 U2149 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.
Need more information about the U2149 Buick code?
Need more information on how to fix the U2149 Buick code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U2149 Buick code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U2149 Buick Code
1. What does the OBDII code U2149 mean on a Buick?
U2149 indicates a loss of communication between the vehicle’s main computer (ECU) and the Tire Pressure Monitoring System (TPMS).
2. What are the common symptoms of the U2149 code on a Buick?
Symptoms can include the TPMS warning light on the dashboard, failure to display tire pressure readings, or intermittent communication issues.
3. What causes the U2149 code to appear on a Buick?
Common causes include a faulty TPMS module, damaged wiring or connectors, low battery voltage in the TPMS sensors, or network communication issues in the vehicle.
4. Can a dead TPMS sensor battery trigger the U2149 code?
Yes, a dead or weak TPMS sensor battery can disrupt communication and cause the U2149 code to appear.
5. How can you diagnose the U2149 code on a Buick?
Start by scanning the vehicle with an OBDII scanner, checking for additional codes, inspecting the TPMS module, and testing the wiring and connectors for damage or corrosion.
6. Can driving with the U2149 code cause further issues?
While it may not immediately harm the vehicle, ignoring the code can lead to undetected tire pressure problems, which could compromise safety.
7. How is the U2149 code fixed on a Buick?
Repairs may involve replacing the TPMS module, repairing damaged wiring, reprogramming the system, or replacing the faulty TPMS sensors.
8. Is the U2149 code covered under warranty on a Buick?
It depends on the vehicle’s age, mileage, and warranty terms. Check with your dealership to confirm coverage.
9. Can extreme weather cause the U2149 code to appear?
Yes, extreme cold or heat can affect TPMS sensor performance or battery life, potentially triggering the code.
10. Do you need to reset the system after fixing the U2149 code?
Yes, after repairs, it’s recommended to clear the code with an OBDII scanner and perform a TPMS relearn procedure if necessary.
Discuss the causes and fixes for U2149 Buick OBDII Code
Code U2149 Buick comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
