GPS speed limit less accurate on 2021 vs 2019

[kenthelawnguy]

After buying my 2021 limited I immediately noticed that the gps speed limit is off on some of the same streets that my 2019 limited was correct on with the biggest gaps being 55 mph and the gps reading 25mph. Both truck are limited models with the 12" screen. I wish I could find a way to update the correct speed limit on my gps.

 

[Royalist_Ram]

Yeah I'm not sure if the speed limit through the NAV is camera based or GPS based. I'm thinking GPS Based, because certain streets just use the last road's speed limit. Fancier German cars use camera based systems that physically read road signs and update your Cluster, HUD, and NAV.

 

[KCViper]

Yeah I'm not sure if the speed limit through the NAV is camera based or GPS based. I'm thinking GPS Based, because certain streets just use the last road's speed limit. Fancier German cars use camera based systems that physically read road signs and update your Cluster, HUD, and NAV.

Absolutely correct! I'm pretty sure our trucks are GPS based as my Porsche 911 is camera based and is 100% always spot on and changes instantly based on the road signs.....truck does not!!