2021 Buick Envision Speedometer Isn't Working

Troubleshooting Common Issues with the Speedometer in Your 2021 Buick Envision and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
35% chance it's the
Vehicle Speed Sensor (VSS)
0%
28% chance it's the
Speedometer
0%
23% chance it's the
Electrical Issue
0%
14% chance it's
Something else
The most common reasons a 2021 Buick Envision speedometer isn't working are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue.
  • Vehicle Speed Sensor (VSS): A faulty vehicle speed sensor can result in inaccurate speed readings and erratic transmission shifting.
  • Speedometer: A faulty speed sensor or a broken connection in the speedometer circuit can result in inaccurate speed readings.
  • Electrical Issue: A blown fuse or a short circuit in the wiring can cause various electrical issues in the vehicle's systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when the speedometer isn't working on a 2021 Buick Envision?

When faced with a malfunctioning speedometer in your 2021 Buick Envision, it's essential to adopt a systematic diagnostic approach. Begin by checking the relevant fuse in the fuse box, as a blown fuse can often be the simplest explanation for the issue. If the fuse is intact, turn your attention to the speed sensor, which plays a crucial role in relaying speed data to the speedometer; inspect it for any visible damage or loose connections. Next, examine the wiring linked to both the speed sensor and the speedometer for signs of wear or damage, as faulty wiring can disrupt the signal and lead to malfunctions. If these initial checks do not resolve the issue, utilizing a diagnostic scanner to search for error codes can provide valuable insights into any underlying problems. Finally, if all else fails, testing the speedometer cluster itself may be necessary to determine if the issue originates from within the cluster or from another component in the system. By following these steps, you can effectively troubleshoot and potentially resolve the speedometer issue on your vehicle.

What are the common problems that could cause the speedometer to stop working in a 2021 Buick Envision?

When the speedometer in a 2021 Buick Envision ceases to function, several common problems may be at play. One of the primary culprits is a faulty vehicle speed sensor, which can lead to inaccurate readings or a complete failure of the speedometer. Additionally, issues within the instrument cluster itself, such as blown fuses or internal component failures, can disrupt the speedometer's operation. Another potential issue is a broken speedometer cable, which, if damaged, will prevent the speedometer from displaying accurate speed. Electrical problems, including faulty wiring or connections, can also interfere with the signal sent to the speedometer, causing it to stop working altogether. Lastly, a malfunctioning stepper motor within the instrument cluster may fail to move the speedometer needle, resulting in a non-functional speedometer. Addressing these issues promptly is crucial for maintaining accurate speed readings and ensuring safe driving.

How urgent is it to repair the non-functioning speedometer in a 2021 Buick Envision?

Repairing a non-functioning speedometer in your 2021 Buick Envision should be treated as an urgent matter due to several critical factors. First and foremost, a malfunctioning speedometer can lead to legal complications, as it is a requirement for safe driving. Without an accurate speed reading, you risk receiving fines or penalties if stopped by law enforcement. Additionally, the safety implications cannot be overstated; a faulty speedometer compromises your ability to gauge your speed accurately, increasing the likelihood of accidents and unsafe driving conditions. Furthermore, neglecting this issue may indicate deeper mechanical problems within your vehicle, potentially leading to more significant damage and costly repairs down the line. Lastly, maintaining all vehicle components, including the speedometer, is essential for preserving your car's resale value. A non-functioning speedometer can deter potential buyers and diminish the overall worth of your vehicle. Therefore, addressing this issue promptly is crucial for ensuring a safe, compliant, and efficient driving experience.

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2021 Buick Envision Speedometer Issues & Repair Guide