MPH Guage off???

My speedo, according to my Garmin, is off by 2mph under 60 mph and when I go over 60mph I'm 3mph off. Kinda of annoying.

But I know what you mean whenever you're going over the speed limit and people are still passing you.

And I have bald dueller H/T's 265/65/17.

 

If you drive the interstates at all, they all have mile posts. I use the mile post to gage my speedo (or whatever it may be called...) via the odometer. The odometer should be in synch with the speedo. I find mine is good. I check it by 1 mile, and by 10 miles, it is still good.

 

Sorry I havent been on for a while, but I have the stock 245/75-16 and have not done any lift mods. I called it MPH Gauge so everyone knows I am talking about the spedometer and not anything else. Thanks for all the help guys, and yeah Toyota told me that it was a minor issue, my warranty just ended in September but I am only at 27,000 miles should I take it in anyway?