2012 SE speedometer off

[Schaden]

Dude, stop freaking out. No speedometer is ever 100% accurate. The Speedo and the odo are not directly tied together so you aren't losing miles of your warranty. Just relax, accept that is how things work in this world, and be happy that it well help you get a few less tickets.
How old are you btw?

[az2008]

Originally Posted by Schaden

The Speedo and the odo are not directly tied together so you aren't losing miles of your warranty.

That's an interesting suggestion. Since both are digital readouts, I would assume they are tied together (one accrues from the other).

The next time someone takes a really long trip on an interstate, they should compare their odo to the number of mile markers they pass.

That's not a perfect test because the Accent's odo doesn't display tenths of miles. But, they could drive exactly 60 going into the first marker, and exactly 60 passing the last marker, noting each time how many seconds it takes for the odo to increase to the next mile. That should give an accurate measurement (and doesn't require a long trip either).

[woodstock827]

Every car I've driven displays ~5 km/hr higher on the speedometer than GPS reading. Honda, Hyundai, Subaru, Toyota.

[mrmr256]

Originally Posted by Blue Minnow

So I figured out that I am getting 2 miles a gallon less than I thought I was too.

You're just now figuring this out?

Most of the people who follow mpg readings displayed by the car are being mislead. Just look at the 40+ club thread.

My average MPG reading on the dash was always 2 to 3 mpg higher than what I calculated by hand. Fortunately, my avg. mpg reading is now 40mpg due to my conservative driving, but I'm calculating 37-38mpg by hand.

I know how you feel because I also bought this car for its 40mpg rating, and the fact that it was brand new and I needed reliable transportation. I still like my car and am still getting better MPGs than my older car.

One way to look at it is that you are putting "less miles" on your car than you really are as far as the car's computer is concerned. Will help a bit in terms of resale value and warranty issues...

[cobraflem 6]

Originally Posted by Blue Minnow

So I figured out that I am getting 2 miles a gallon less than I thought I was too. I think the Koreans are a bunch of Crooks. My 60K warranty will be up 5500 miles sooner too. I probably would not have bought this car if I had known all this sooner. Still like the car, but I bought this car based on the 40 mpg hwy sticker. Now i have to go check the KIA we just bought.

Actually it is the other way around. I use GPS everyday, and have tried other different models to calculate and all were the same. My weekly commute in this car is 305.6 miles while my trip computer always reads 298.9 miles. So the car is reading less than I actually drive. On a side note, all 3 of my GPS units are spot-on with my other vehicles. So as far as I can see my actual mileage will be about 61k when the car reads 60k. This car definately has some oddities to it in all aspects on the instrument panel. The only ones I try to trust is the tach, temp, and fuel gauge, but those may be a little off as well.

[Blue Minnow]

Originally Posted by Narcissist

Do you have Autometer gauges installed in your car? I dont foresee this working with Hyundai factory guages...

Oh!!! Dam, Dam, Dam.

Originally Posted by 2old2rocknroll

Read it! The manual gives you the speedometer specs and let's you know that the speedometer can not be adjusted.

Most cars are set a few mph higher. If they were set lower than actual and I got a ticket...........I would be pissed off!

Yeah cause it would be to much to ask for it to be accurate

Originally Posted by Schaden

Dude, stop freaking out. No speedometer is ever 100% accurate. The Speedo and the odo are not directly tied together so you aren't losing miles of your warranty. Just relax, accept that is how things work in this world, and be happy that it well help you get a few less tickets.
How old are you btw?

I am 51 and I dont get tickets. MY family are cops. All my AMERICAN cars were within 1 mph.
and I think the reason they are both off is because the tires have a smaller diameter than they have calibrated the speedometer to.

[krazeaznboy]

Originally Posted by Blue Minnow

Oh!!! Dam, Dam, Dam.



Yeah cause it would be to much to ask for it to be accurate



I am 51 and I dont get tickets. MY family are cops. All my AMERICAN cars were within 1 mph.
and I think the reason they are both off is because the tires have a smaller diameter than they have calibrated the speedometer to.

I was going to ask if you changed your tires cause that will have an impact on your speedometer. Sorry, but I can't stand American cars. I drove my friend's focus and I didn't like it. I drove my mom's escalade and hated it.

[oneir]

I don't know which tires go on which model Accent in Korea, but both the Hankook OPtimo 724 and the Kumho Solus KH25 have a (claimed) overall diameter of 23.7". That's taken from the data at the two tire makers' websites, not from tirerack or Hyundai. There is a one revolution difference per mile (876 revolutions per mile for the Hankook, 877 for the Kumho) according to their independently provided data.

Hankook Optimo 724
Welcome to Hankook Tire International Website

P175/70R14
84 T 5.0 4.5-6.0 23.7 7.0 4.6 9.5 876 DSB 44 1,102

Kumho KH25
SOLUS KH25 - Kumho Tire USA, Inc.

P195/50R16 2141143 83H BSW 480 A/A 5.0 - 7.0 7.9 on 6.0 23.7 0.0 11.1 877 10.0 1074

I agree that speedometers and odometers and mpg computers should be accurate, not intentionally low. It's the year 2012, after all, and car makers have had plenty of time now to develop good instrumentation so that including accurate speedometers and odometers in their cars should not be a problem. In fact over there in S. Korea, it's the year 4345 - so that makes the omission even worse.

[krazeaznboy]

Originally Posted by oneir

I don't know which tires go on which model Accent in Korea, but both the Hankook OPtimo 724 and the Kumho Solus KH25 have a (claimed) overall diameter of 23.7". That's taken from the data at the two tire makers' websites, not from tirerack or Hyundai. There is a one revolution difference per mile (876 revolutions per mile for the Hankook, 877 for the Kumho) according to their independently provided data.

Hankook Optimo 724
Welcome to Hankook Tire International Website

P175/70R14
84 T 5.0 4.5-6.0 23.7 7.0 4.6 9.5 876 DSB 44 1,102

Kumho KH25
SOLUS KH25 - Kumho Tire USA, Inc.

P195/50R16 2141143 83H BSW 480 A/A 5.0 - 7.0 7.9 on 6.0 23.7 0.0 11.1 877 10.0 1074

Just checked the Korean website. We have the same tire specs as them.