I’ve heard talk about a Limp Mode what exactly does it do. Does the truck stop go dead, or run sluggish or miss and sputter? I saw where there maybe different signage on the dash come on also. How do you restart it, or re configure it. What do you have to do about it? Thanks my truck is a 2015 but a recent post here talked about a limp mode and I was wondering all about it.

 

The following is from the PC/ED Manual:

In this mode, the throttle plate control is disabled due to the loss of both TP sensor inputs, loss of throttle plate control, stuck throttle plate, significant processor concerns, or other major electronic throttle body concern. The spring returns the throttle plate to the default (limp home) position. A maximum allowed RPM is determined based on the position of the accelerator pedal (RPM Guard). If the actual RPM exceeds this limit, spark and fuel are used to bring the RPM below the limit. The powertrain malfunction indicator (wrench) and the MIL illuminate in this mode and a DTC for an ETC related component sets. The EGR and VCT outputs are set to default values and cruise control is disabled.