TRD ORP - speedometer vs GPS speed

[Ron-efnSwanson]

HI folks,

I just picked up my Everest ORP last week and have been enjoying it and this forum. I took my ride on its first decent trip to visit a friend about 2 hours from home. I noticed my indicated speed was 2-3 mph higher than what google maps was indicating. I’m curious if anyone else has noticed a similar issue. I do have the optional black TRD wheels installed as a port option, but I believe they are the same size as the stock ORP wheels. Any insights are greatly appreciated!

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[zgreen]

HI folks,

I just picked up my Everest ORP last week and have been enjoying it and this forum. I took my ride on its first decent trip to visit a friend about 2 hours from home. I noticed my indicated speed was 2-3 mph higher than what google maps was indicating. I’m curious if anyone else has noticed a similar issue. I do have the optional black TRD wheels installed as a port option, but I believe they are the same size as the stock ORP wheels. Any insights are greatly appreciated!

Yes indeed. I have a Pro and when the Adaptive Cruise is set at 70, GPS on google maps is usually rough at 68, sometimes 67.

 

[Ramsfan611]

Yes mine too….. have a 2025 TRD ORP and Seems like many new cars have this issue. Had numerous BMW’s and they all were known for being 5 plus mph faster than GPS. First week I changed out the Michellin slicks and got some BFG’s in exact same size and even confirmed specs were the same, and on GPS read +3 or 4 MPH under as well on many speeds. So do we trust GPS, or our calibrated speedo’s…???

 

[Nodak]

per federal rules, speedometers must indicate actual speed or less. most oem's (outside of certified speedometers, ie: police packages) will show a higher speed than actual to not go over the federal rules.

my 2014 shows 1 mph (1.6kmh) higher than actual since i keep my MID in digital speed format instead of using the actual analogue gauge.

 

[Ron-efnSwanson]

I appreciate everyone's thoughts. While I don't anticipate a great answer from Toyota, I do plan to ask my service manager about it when I go in for my first oil change. If I hear anything interesting...I'll be sure to follow up here.

 

[dirtwheeler]

I know this post is a few months old but I just tripped across it "hoping" the speedometer reads a little high because I plan to install larger diameter tires. I just tested my ORP on its factory 265/70R18 Falken Wildpeak AT3WA tires. The speedometer was dead on -- testing by setting cruise control to 60 MPH and watching a GPS speedometer app on my phone. It was within 1 MPH anyway. I'll test again with the larger tires -- probably sometime in November.

I'm still wondering if all the trims are tuned the same, or it depends on the tires size -- I looked at an SR5, which has 245/70R17 stock tires.

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