Limp mode reset - BMW E46 E39 E60 E61 Z8 Mini E53 X5 Z4 X3 E38 6-disc Cd Mp3 Cdr Cdrw Changer

Question edited for clarity and add maker.
Question moved to model category.

Limp Mode is activated for the most serious faults that can REALLY damage your engine catastrophically. It gives you the opportunity to limp to a garage.

It can be reset with a pro grade scan tool which also tells you WHY Limp Mode was activated.

Limp mode stops when the problem that caused it is repaired, which you have not done yet, whatever you did was not the problem that forced the vehicle into limp home mode keep doing the diagnostics and fix it right.

the limp mode will not allow you to accelerate until you have fixed the problem and reset the ECM
Limp modes are not there to help ease you frustrations but to prevent costly repairs to the engine and transmission
fix it , reset it then you will have no need to go nuts

You can't reset the limp home mode, you must take it to the dealer and find out why the computer control is asking for limp to be engaged.

try using a scan tool to reset the computer

d/c battery for a spell. then reconnect it and stat up without touching the accelerator pedal. Let it idle and warm up and then drive it normally. If no help then consult check engine codes to see what caused it to go into limp mode.

limp mode means something is broken, with
PCM or TCM. (bad sensors or actuators)
resetting PCM.
1: press reset on scan tool.
2: pull memory fuse to ECU.
3: pull battery neg lug and radio bricks and need to do relearn modes. on many things.

if the problem remains, resetting it does nothing, it come back fast.

Limp mode can be reset as eaily as shutting off the car and restarting it. the computer will then retest the system, if the problem is gone you will not go into limp mode. but if the problem is still evident, you will have to have it repaired before it will work properly.

Most transmissions have a limp mode, or limp-home mode.
If the driveline computer thinks there is something wrong, it can lock the transmission into one gear, such as 2nd gear. Usually reverse will also be available. The Impala automatic has 4 speeds. 2nd speed or gear will get you home, but the engine rpms can get a little high. I wouldn't get on the expressway will in limp mode.
Before taking to the shop, you might want to try and reset limp mode by turning the car off for a couple minutes, or you may have to disconnect and reconnect the battery.

You will have to have the fault codes read and removed. If it is permanently in limp mode it may suggest another problem.