My speedometer is off 2-3 mph fast compared to the GPS. Your lucky the Civic matches. Most cars have some error between the speedometer and the GPS. Its a known issue as most autos have some error, it can be caused by wheel and tire size differences. Just keep it in mind and drive in accordance.

 

Mine is off by about the same. I'm probably going to change tire sizes to help offset when the time comes.

 

Is this a known issue?

It is common in a lot of makes and models and is not really considered an "issue".

They are purposely designed to NOT be off in the other direction.....so that you could try and blame the car maker for your speeding tickets !!

 

This has been the case since the 2011's first came out. You are usually going about 2-3 mph slower than the speedometer reads. As tires wear down, the error increases slightly. There are several previous threads on this subject.

 

I have a couple of road speed displays I pass by sometimes, and I always get about 3 KM/h less on there than my speedometer. I figure if the road display is accurate, I'm not actually going as fast as I think sometimes and it'll help me avoid tickets! The same holds true for my Kia Rio5, but I get about 5 KM/h less with that!

 

Mine is also 2 or 3 mph faster than what my phone says.

 

You're not alone; mine is the same. The first time I noticed was when cruising down the highway and reseting the average speed on the dash display. It said I was going 2 mph slower than what the speedo said.

 

Ditto. Have had the issue since I bought mine.

I actually like it because I feel like I am speeding but really I'm just doing the speed limit or slightly above.

Also its nice when you go past your friendly law enforcement representative...and they continue to sit there or nab someone else!

 

It is not an issue, but a design, just as Easy Rider said. Google it and you will find it across most makes and models and the reasons why.

 

What your vehicle shows and gps is always going to be different. Simply the vehicles speed is read off of the speed sensors on the wheels, where as GPS is satellite based so latency and other obstructions will cause a small difference in the readings. Also keep in mind that the gps signal is not calibrated for your vehicle where as the sensors on your vehicle are.

 

What your vehicle shows and gps is always going to be different.

Also keep in mind that the gps signal is not calibrated for your vehicle where as the sensors on your vehicle are.

I'm sorry but the speedometer in each vehicle is not "calibrated" for your individual vehicle. A group of parts is thrown together and the outcome will vary some because of manufacturing "tollerances".

The GPS, OTOH, is measuring absolute speed. In general, it will be more accurate than the approximation that the speedometer makes.

And sometimes they will come up with the same readings.

 

goin one size or 2 size up will solve this ?

 

You'd actually buy wheels just to have the speedo be on? Off buy 10-15 mph I can understand, but what is the big issue with being VERY slightly slower than the speedo says.

 

The speedometer is calibrated to read 108% of the actual speed.

On my aftermarket HUD I can set the % I want of actual speed. At 100% I match all radar guns. At 108% I match my speedometer. My speedometer reads 3-4 MPH faster than actual speed.

 

I would be more concerned about the odo. has anyone actually checked this?

 

Here you go, guys. Took me 37 seconds. You're welcome.
http://www.hyundai-forums.com/230-sonata-yf-turbo/138668-reduced-warranty-due-speedo-error.html

http://www.hyundai-forums.com/230-sonata-yf-turbo/118239-actual-mph.html

http://www.hyundai-forums.com/230-sonata-yf-turbo/124120-speedo-off.html

 

btw i owned 2006 sonata v6 before (purchased it on june 2006) and this one is 2013 sonata SE. i like it except the wandering/handling issues

 

*speedometer

My Sonata 2.0T speedometer is 3-4 MPH slow.

Granted I am basing this data off my GPS but in my CIVIC my GPS speed and speedometer speed match perfectly.

Is this a known issue?

Thanks!

Same problem with my 2019 sonata

 

I've rebuit a couple of dozen sonatas/Santa Fes/Sorentos 2011 to 2015 and EVERY ONE was off by 2 KPH when compared with GPS, about 1-1/2 MPH. Never saw a higher deviance than that.

 

*speedometer

My Sonata 2.0T speedometer is 3-4 MPH slow.

Granted I am basing this data off my GPS but in my CIVIC my GPS speed and speedometer speed match perfectly.

Is this a known issue?

Thanks!

I had this issue on 2015 sante fe. Corrected it by changing from 235 x 65 x 17 tyres to 255 x65 x17 tyres. Do be aware it will leave your tyres closer to chassis. Check 1st.
There are tyre size comparison websites to check speed difference

 

Little late to this party; but my 2013 Sonata 2.0T has always been approx 1mph to 1.5mph off.

Suppose id rather the speedo be SLOW than showing 1mph too fast....