INFINITI QX50 Speedometer Isn't Working

Common Causes of a Malfunctioning Speedometer in Your INFINITI QX50 and How to Fix It

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Reviewed by
Bo Fader
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 INFINITI QX50 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 best INFINITI repair shops?

RepairPal Certified shops can diagnose and repair your INFINITI QX50 electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
30 Certified Locations
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Tuffy Tire & Auto Service Center - Grandview

4.7
(84)
2.39 mi
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
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Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
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All In Auto Service

4.9
(23)
6.56 mi
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
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Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Open
Closes 6:00 PM
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See All 30 Locations

Troubleshooting Speedometer Issues in an INFINITI QX50

When troubleshooting speedometer issues in your INFINITI QX50, it's essential to adopt a systematic diagnostic approach. Start by checking the Vehicle Speed Sensor (VSS), as this component is often the primary cause of speedometer malfunctions. Ensure that the VSS is functioning correctly and securely connected. Next, inspect the speedometer itself for any visible damage or signs of malfunction, as a faulty speedometer can lead to inaccurate readings. It's also crucial to examine the electrical connections associated with the speedometer; look for any loose wires or corrosion that could disrupt functionality. If you prefer a digital speedometer, consider exploring tutorials on how to activate it, as this can provide an alternative way to monitor your speed. If issues persist, it may be beneficial to research common problems reported by other QX50 owners, as this can offer insights into potential solutions. Lastly, if you encounter multiple electrical or computer-related issues, seeking assistance from a qualified technician may be necessary to ensure comprehensive diagnostics and repairs. By following this structured approach, you can effectively identify and resolve speedometer issues in your INFINITI QX50.

What to Do When the Speedometer Isn't Working in an INFINITI QX50?

When your INFINITI QX50's speedometer stops functioning, it can be frustrating, but understanding the common problems can guide you in troubleshooting the issue. One of the primary culprits is often the Vehicle Speed Sensor (VSS), which plays a crucial role in relaying speed information to the speedometer. If the VSS is faulty or disconnected, it can lead to an inaccurate or non-responsive speedometer. Additionally, the speedometer itself may have internal faults, such as a broken gear or electrical malfunction, which can prevent it from displaying speed correctly. Electrical issues, including blown fuses or damaged wiring, can also disrupt the speedometer's operation. If your vehicle features a digital speedometer, toggling the Average Speed setting in the Vehicle Information Display may help restore visibility. Lastly, utilizing the TRIP RESET switch can assist in resetting the display settings, potentially resolving the issue. By systematically checking these common problems, you can effectively troubleshoot and restore functionality to your speedometer, ensuring a safer driving experience.

Why is the Speedometer Not Working in an INFINITI QX50?

When the speedometer in your INFINITI QX50 stops functioning, it’s crucial to address the issue promptly, as neglecting it can lead to serious safety risks and further vehicle damage. A malfunctioning speedometer can hinder your ability to monitor your speed accurately, increasing the likelihood of speeding violations and accidents. Common culprits behind this problem include a faulty vehicle speed sensor, damaged wiring, or even a blown fuse. If left unchecked, these issues could escalate, potentially affecting other vehicle systems and leading to costly repairs. Therefore, diagnosing the root cause of the speedometer failure is essential not only for your safety but also for the overall health of your vehicle. Taking immediate action can help you avoid more significant problems down the road, ensuring a safer driving experience.

Related INFINITI QX50 Problems

Read about related problems experienced by other INFINITI QX50 drivers like you.

Audi A6 Quattro gas and speedometer gauges not working, possibly due to faulty sensor
Some Audi A6 Quattro owners report experiencing issues with their gas and speedometer gauges not functioning, often attributed to a faulty sensor. Common causes include problems with the vehicle speed sensor (VSS), a malfunctioning speedometer, or electrical issues. A faulty speed sensor can lead to inaccurate speed readings, affecting fuel flow and ignition timing, and may result in erratic behavior or a complete stoppage of the speedometer. Additionally, issues with the sending unit, bad wiring in the gas indicator circuit, or problems in the speedometer circuit can impact the fuel gauge's functionality. In some instances, a malfunctioning speed sensor may even trigger the ABS light and cause the speedometer to stop working altogether. It is advisable for owners experiencing these issues to have the sensor checked and replaced if necessary to restore proper functionality.
2 model years affected
Avg Mileage: 1162,500
6 others reported problem
2 comments
Pontiac Grand Am speedometer not functioning, fluctuating RPMs, and overheating issue
Some Pontiac Grand Am owners report experiencing issues such as a malfunctioning speedometer, fluctuating RPMs, and overheating problems. These issues may stem from a faulty vehicle speed sensor (VSS), a defective speedometer, or electrical problems affecting the speedometer. Additionally, fluctuating RPMs could be linked to problems with the instrument cluster, speed sensor, or the engine itself. Overheating concerns might arise from a malfunctioning temperature gauge, faulty cooling system components, or issues with the coolant temperature sensor. To address these concerns, owners are advised to check the VSS circuit for malfunctions, inspect the instrument cluster and speed sensor, and ensure the cooling system is functioning properly by monitoring coolant levels and the radiator. Scanning the OBDII port for diagnostic trouble codes (DTC) related to VSS circuit issues may also provide valuable insights for troubleshooting.
4 model years affected
Avg Mileage: 1130,762
9 others reported problem
4 comments
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