I'm just guessing but if it has always done that then it probably means drive 4th gear which would mean that the car will automatically shift gears up to 4th gear which would be normal, but if it hasn't always done this than there is a problem
I run in Hi gear
A space probe with special gear to send curiosity rover safely to the surface of mars
For most newer model cars you need the key to change the gear.
If a 1993 Land Rover Discovery is stuck in a low ratio gear, check the transmission fluid levels. If the fluid levels check out okay, the transmission may be experiencing a jammed gear.
It depends on whether or not the car has a digital readout. If it has a digital display, chances are it would be a wiring problem, somewhere right behind the odometer. If it has an analog display, since the spedometer still works, chances are the odometer itself (the display) has gone bad--like a little gear in there or something. This is one of the simplest odometer problems to fix; just replace the display piece. If the spedometer wasn't working it would be a whole different story--probably a faulty cable.
land rover discovery
80/90w gear oil
Heat gear box--10 miles should do it--remove level plug, and siphon oil.
Possibly a bad trans range switch, or bad IP, need to scan and see what code is for ck engine lite.
Put the key in the ignition in front of hand brake next to the gear shifter.
If you have a digital display which tells you the gear the vehicle's in, the gear it's in can tell you if you're in an overdrive gear or not. However, you have to know your transmissions. For example, in a transmission such as the 4L60E or 46RH, only the fourth gear is the overdrive gear, so you know you're in overdrive when you're in that gear. The 6L80E has two overdrive gears, so you're in overdrive when you're in fifth or sixth gear. The other way involved a bit of mathematics, and probably isn't that practical to try doing while the vehicle is in motion. You would also need to know your transmission final drive ratio and your rear end gear ratio.
get gearbox number off gear box and look it up online.other than that try counting the different positions of gears