How does speedometer calibration work ?

Speedometer calibration

As you have probably seen yourself, speedometers can become faulty or present with sticking, fluttering, or broken gauges over time. When any gauge related issues show up, this is cause for an entire instrument cluster replacement or an instrument cluster recalibration. Below I will describe how the latter works.

Whereas some choose to purchase a brand new instrument cluster when theirs presents with any faults or incorrectly reading gauges, others choose to repair it on their own or send it to a professional repair shop. Wherever it is sent to or repaired, there are a number of specific steps that need to be followed in order to render a perfectly repaired instrument cluster. First, the instrument cluster needs to be removed out of the vehicle. In order for it to be removed, the emergency brake should be engaged, and then the plastic trim around the cluster removed. The steering wheel needs to be tilted down and the shifter engaged into first gear. After that, the trim can be removed, as well as the screws holding the cluster. Once the cluster is pulled out, the wiring can be disconnected. After that is completed, the actual instrument cluster needs to be disassembled. Each individual gauge needs to be personally inspected and all the fluttering, sticking, broken, or incorrectly reading gauges replaced with new ones. All defective motors controlling the arrows and needles should also be replaced. Once all of that is done, the unit can be reassembled. To check if the repairs have been successful, the instrument cluster then needs to be reinstalled into the vehicle and plugged in. If all the gauges work like new again, this would be evident of an effective instrument cluster repair.

If you are wondering what professional company actually offers speedometer calibration services, the answer is Safety Restore. Safety Restore has been operating for many years now and specializes in the repair of any and all gauge-related issues. The service is affordable and quality is guaranteed. Safety Restore only utilizes industry standard tools and 100% OEM parts when it restores instrument clusters back to factory settings.

How much does speedometer calibration cost ?

How much does speedometer calibration cost?

If you’re wondering, “How much does speedometer calibration cost in comparison to other car repairs?” perhaps I can help you with that. Many other car repairs or parts cost hundreds of dollars, which causes people to put them off for weeks, if not months or years. However, that is not the case with speedometer calibration—at least when turning to the correct place to get it done! Below I will compare the price of getting a speedometer calibration to some of the main car repairs, such as changing the oil, switching out the battery, getting new tires, etc.

Before being able to compare the price of speedometer calibration to other repairs, you need to know the price of a speedometer calibration service in the first place. Now, some people choose to purchase a brand new instrument cluster at the dealership when they think even something little is off with their speedometer. Of course, that comes with quite a large price tag. On average, instrument cluster replacement costs between $748 and $757. Labor costs are estimated between $87 and $110, and the replacement parts are priced between $641 and $647. Those prices do not even include taxes and fees.

However, that is certainly not necessary. The company Safety Restore performs speedometer recalibration for a much more affordable price. “How much does speedometer calibration cost at Safety Restore?’ you may ask. The answer is just $118.99! Plus, the service comes with a lifetime warranty guarantee! You’d think that with such a low price on such an important aspect of the vehicle—quality would be under par, but that is not the case whatsoever. Quality is of upmost priority at Safety Restore!

Now that you know the price of speedometer calibration at Safety Restore, let’s stand it against some of the typical car repairs that people have to pay for.

First, there is getting an oil change. Typically, this can cost anywhere between $20-$50. However, it is important to remember that an oil change is much easier to do and doesn’t require the precision and time that it takes to recalibrate an instrument cluster!

Let’s turn to the price of switching out a car battery. Premium batteries typically cost anywhere between $90 and $200.

Now let’s look at the price of switching out the tires in a vehicle. The price of buying four new tires typically ranges between $525 and $725.

Overall, it is quite evident that Safety Restore’s prices are not just practical; they are so affordable when compared to other car repair prices!

How to Check Speedometer Calibration

How to Check Speedometer Calibration

Instrument clusters, like all other components in a vehicle, can get damaged or become faulty over time without you even noticing at first. The best thing that you could do is make periodical assessments of your instrument cluster to see that everything is working the way it should be. You may be reading this and thinking to yourself, “That sounds like a good idea but I have no idea how to check speedometer calibration”. Fortunately for you, I will precisely tell you how to check speedometer calibration in your vehicle. After following what I tell you, you will hopefully know how to tell if there is anything amiss with your speedometer in the future.

To begin with, you will be pleased to learn that you don’t need any fancy recalibration device to check if your speedometer is working. Rather, you just need some time, patience, a stopwatch, a car, and an extra set of hands.

A quick and easy way to check the accuracy of your speedometer is as follows. First, find a part of a highway that has visible mile markers. Drive at a constant speed and have your front seat passenger collect and record all data. You will want your passenger to time how long it will take for you to travel one mile. You’ll want to proceed with dividing 3,600 by the time it took you in seconds to drive that one mile. The answer to this equation will be your actual speed reading. Therefore, if you put your car in cruise control at 60 mph and complete the mile in 50 seconds, your real speed will be 72 mph. Not only is that enough to get you pulled over, but it will also tell you that your speedometer reading is 20% lower than it is intended to be. Of course, the percentage may be a little off due to the margin of error caused by stopping the stopwatch—but nevertheless it should give you a rough estimate on the amount that your instrument cluster is off by.

If the percentage is way off from what it should be, you might want to send the unit in to a professional. The company Safety Restore specializes in instrument cluster gauges repair and will be able to recalibrate your speedometer—and for a very affordable price at that!

Calibrating Mechanical Speedometer

Calibrating Mechanical Speedometer

The vehicles speedometer has the job of giving an accurate estimation of the speed we are driving at any given moment. Cars coming from a dealer have the speedometer already calibrated to the vehicle’s stock parts. However, if particular parts are changed, like the cars tires, the speedometer needs to be calibrated. Otherwise, you will be given the incorrect speed. Cars that are salvage will also need to get calibration.


A dealer may charge a large amount, so some decide to tackle this themselves. If you have a mechanical speedometer, Here are a few simple steps on how to do a speedometer adjustment.


If you have a mechanical speedometer you would start by opening the vehicle’s hood and locating the transmission. Next, unscrew the speedometer cable and unscrew the bolt holding the gear housing cover. After removing the plate, you will see two gears. Count the number of teeth the gears have and remember it for later. Next, get the diameter of the tire and divide 20,168 by the tire’s diameter. This is the tire’s revolutions per mile. Multiply this by the amount of teeth your gears have and multiply again by the vehicle’s axle ratio (which can be found in the vehicles supporting documents). Purchase the necessary driven gear for your vehicle. Remove the old driven gear by pulling it out of its clips and clip in the new driven gear. Secure the gear housing cover and the speedometer cable back.


However, if you aren’t handy with cars, don’t have the time, or just need help, it may be best to take it to a professional. They will make sure it is done correctly and safely. Safety Restore is a post accident restoration company that can help with no worry on the speedometer adjustment cost with them! They can save you hundreds on their services with their cluster repair service for only $118.99! Visit SafetyRestore.com to securely purchase the service. Then, simply remove the cluster from your vehicle and ship it to their warehouse. Their expert technicians will repair and send back your cluster within 24 hours.

How to Test Speedometer Calibration

how to test speedometer calibration

A vehicle’s computer reads the magnetic field pulses in order to determine the rotational speed of the driveshaft. This determines the speed at which the vehicle is going. If you suspect that your speedometer is giving the incorrect readings, here is how to test speedometer calibration.

First, a measured mile is required. Interstate highways and some country roads have mile markers but this method should only be down in a safe manner. Before beginning driving the mile, take note of the mileage the odometer has. Reset the trip odometer to 0.0. Drive a mile according to the mile markers or your measure mile. Then take note of the reading on the odometer. If the odometer is saying that you drove more than a mile, then it is calculating a faster speed than your actual speed. Similarly, if it is displaying that you drove under a mile, then it is calculating that you driving slower than you actually are.

Now that you know how to test speedometer calibration, you can take the next step and calibrate it. However, if you are unable to fix the issue, it is a good idea to bring it to a professional like Safety Restore. Safety Restore is a company that specializes in post accident repair. They can help your vehicle get back on the road giving the driver the correct readings for everything. Safety Restore can help in rebuilding tachometer gauge, oil gauge repair, temperature gauge repair, gas gauge repair, and the car odometer repair. All you need to do is send them your item and you can save up to $600 as compared to buying a new one at the dealer. Once they receive it, they will repair and ship it back within 24 hours, saving you both time and money. Visit SafetyRestore.com to learn more how they can help you get back on the road driving safely.

How To Do Speedometer Calibration

How To Do Speedometer Calibration

Imagine driving down the road, and you are pulled over for going over the speed limit. However, your vehicle was telling you that you were driving at the correct speed. This may be due to your vehicles speedometer calibration. If you have recently changed a stock part on your vehicle, such as the tires, the calibration may be off, resulting in the vehicle giving you a different reading. For example, switching to larger tires may give you a slower speed reading (which would be the case of you being pulled over for speeding). Smaller tires would give you a faster reading. In this case, you would need to learn how to do speedometer calibration.

If you have an electric speedometer, the process is simple. All you need to do is determine the distance your vehicle has to drive in order to properly calibrate. This number can be found in the vehicles supporting documents. Press the calibration button which is located on the speedometer, start the vehicle, and then release that button. Press the button again and go on the test drive. Once you have driven the required distance, press the button once more and speedometer will calibrate itself.

After you know to do speedometer calibration, but you notice that it is still not giving you the correct reading, or the gauge is not working, the speedometer may need to get repaired. Safety Restore is a post accident restoration company that can help with your speedometer repair. Safety Restore can help rebuilding tachometer gauge, oil gauge repair, temperature gauge repair, gas gauge repair, and the car odometer repair. They can fix it all! Simply send them your cluster and you can save up to $600 as compared to buying a new one at the dealer. Safety Restore will repair and ship back your item within 24 hours of receiving it. Visit SafetyRestore.com to learn more how they can help you get back on the road driving safely.

How to Change Speedometer Calibration

How to Change Speedometer Calibration

A vehicle’s speedometer is in charge of giving an accurate estimation of the speed it is driving. When buying a car from a dealer, the speedometer is adjusted, or calibrated to the vehicle’s stock parts. If the owner decides to change the stock parts, such as the vehicle’s tires, it can throw of the speedometers calibration, giving the driver the wrong reading for the vehicle’s speed. Switching to larger tires causes the speedometer to give off a slower speed reading than the vehicle’s actual speed. Similarly, switching to smaller tires causes the speedometer to give a faster reading for the vehicle’s speed. After the tires are changed, the speedometer needs to be recalibrated. Here are a few simple steps on how to change speedometer calibration for a mechanical or electrical speedometer.

If you have a mechanical speedometer you would start by opening the vehicle’s hood and locating the transmission. Next, unscrew the speedometer cable and unscrew the bolt holding the gear housing cover. After removing the plate, you will see two gears. Count the number of teeth the gears have and remember it for later. Next, get the diameter of the tire and divide 20,168 by the tire’s diameter. This is the tire’s revolutions per mile. Multiply this by the amount of teeth your gears have and multiply again by the vehicle’s axle ratio (which can be found in the vehicles supporting documents). Purchase the necessary driven gear for your vehicle. Remove the old driven gear by pulling it out of its clips and clip in the new driven gear. Secure the gear housing cover and the speedometer cable back.

If you have an electric speedometer you would start by determining the distance of the test drive you would need to recalibrate your speedometer, which can be found in the vehicles supporting documents. Press and hold the calibration button located on the speedometer, start the vehicle and then release the button. Press that button again and then take the test drive. Once you have driven the distance needed, press the button once more and the speedometer will calibrate itself to accommodate the new tire size.
Now that you know how to change speedometer calibration, you can get those new tires you have been eyeing.

Need help with speedometer calibration? View our services here.

Who Does Speedometer Calibration ?

Who Does Speedometer Calibration ?

A speedometer indicates how fast the vehicle is traveling at any given moment. The odometer tells us how far the vehicle has traveled. They work hand in hand to determine if any services are needed, and to help keep you driving safely on the road. Having a properly calibrated speedometer is very important when your vehicle is on the road. If you are ever pulled over and told that you have been speeding, but your speedometer said that you were in fact driving the speed limit, you can still get a ticket. This is because, by the design, the speedometer is accurate by law. Federal standards in the United States allow a maximum of 5 mph error plus-or-minus. Tire diameter, tire wear, tire temperature, pressure, vehicle load, and differential gearing can all have an effect of the speedometers reading.
Also, if you have bought a salvage car or got a speedometer from a different vehicle to put into another, the mileage needs to be adjusted. But who does speedometer calibration?

Safety Restore is a post accident restoration company who does speedometer calibration. Safety Restore can help rebuilding tachometer gauge, oil gauge repair, temperature gauge repair, gas gauge repair, and car odometer repair. They can fix it all! Visit SafetyRestore.com and select the “Cluster Repair” service. Select the Make and Model of your vehicle before checking out. Then, simply send them your cluster and you can save up to $600 as compared to buying a new one at the dealer. Safety Restore will repair and ship back your item within 24 hours of receiving it, saving you both time and money. They have a 100% satisfaction guarantee and a lifetime warranty on all their services as well. Visit SafetyRestore.com to learn more how they can help you get back on the road driving safely.

Calibrating Electric Speedometer

Calibrating Electric Speedometer

When driving, we are constantly glancing down at the speedometer to find out if we may be traveling too fast or too slow. If it wasn’t for the speedometer, we can get pulled over and get a ticket for potentially reckless driving. It is important that your speedometer is working properly, giving out the correct readings. If it is not, you may need a speedometer adjustment or repair.


If you have an electric speedometer, here are a few simple steps on how to do a speedometer adjustment. First, start by determining the distance of the test drive you would need to recalibrate your speedometer, which can be found in the vehicles supporting documents. Press and hold the calibration button located on the speedometer, start the vehicle and then release the button. Press that button again and then take the test drive. Once you have driven the distance needed, press the button once more and the speedometer will calibrate itself to accommodate the new tire size.


However, if you aren’t handy with cars, don’t have the time, or just need help, it may be best to take it to a professional. They will make sure it is done correctly and safely. A dealer may charge hundreds of dollars for this service, so you may want to consider going to Safety Restore instead. Safety Restore is a post accident restoration company that can help! They can save you hundreds on their services with their cluster repair service for only $118.99! The process of getting your speedometer back to working condition is simple with them. Visit SafetyRestore.com to securely purchase the service. Then, simply remove the cluster from your vehicle and ship it to their warehouse in Westfield, MA. Their expert technicians will repair and send back your cluster within 24 hours.

What is speedometer calibration ?

What is speedometer calibration ?

The vehicles cluster, is also referred to as the vehicle’s speedometer. It displays the tachometer gauge, odometer gauge, gas/fuel, gauge, temperature gauge, as well as transmission gauge. If you notice that there may be an issue with the speedometer like it giving incorrect reading, sticking, fluttering, or just not working, then you may need to get the speedometer repair or calibrated. What is speedometer calibration?


A speedometer is calibrated to ensure that the magnetic field torque reads and displays the correct speed of the vehicle. It takes into account the gear ratio of the drive cable, the tires diameter, as well as the drive ratio in the differential. If any of these are changed, the speedometer needs to be calibrated for those changes. The easiest way to calibrate the speedometer is to modify the magnetic field’s strength. This is done by using an electromagnet to adjust to match the input from the device’s drive cable.

Safety Restore can help you in your question “what is speedometer calibration?’ and “How do I go about getting my speedometer calibrated?” Safety Restore specializes in post accident repair as well as cluster repair. Safety Restore can help rebuilding tachometer gauge, oil gauge repair, temperature gauge repair, gas gauge repair, and car odometer repair. They can fix it all! Instead of going to a dealer, visit SafetyRestore.com to save hundreds of dollars on this service. For only $118.99, Safety Restore will repair your cluster using 100% OEM parts and with a lifetime guarantee. Aside from saving you money, they can also save you time with their 24 hour turnaround. The companies skilled engineers repair all parts to meet FMVSS standards as well. Leave the work to a BBB accredited company and then enjoy the drive in your like new speedometer.