My trans is stuck in second gear. Is that what

Yes, that is the whole idea of Limp Mode. It limits you to first and second gear so you can limp slowly to the nearest garage without causing catastrophic damage to the engine. What you need to do is connect a good quality DTC code reader scan tool and see the real reason that Limp Mode has been engaged.

https://www.google.com/search?q=1999+jeep+cherokee+limp+mode+causes

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If your Isuzu is stuck in 'Limp Mode' you will need to get it plugged into a diagnostic system or an obd2 scanner as soon as possible to find out why! Limp Mode usually means there is a possibly serious problem and by serious I mean expensive! If you get the codes comment below with them and I'll try and help explain them.

When the system goes into to Limp Home mode it means that a serious fault has occurred in the electronics or a mechanical failure has been sensed. What you need to do now is have the computer control system scanned for fault codes, this (the fault codes) will give you a starting point to diagnose the problem that has caused the Limp Home mode to be initiated by the computer control module.

Have the codes read first. It is stuck in limp mode,second gear. Engine and transmission problems can cause this.

It is gearbox problem,could be oil level issue,please check level first.

It is stuck in limp mode meaning you are having internal problems with trans

P0455 = Evap leak monitor large leak detected.
This code usually means the gas cap may have been loose or needs the rubber gasket.

P0500 = No vehicle speed sensor signal.
Vehicle speed sensor is located on the transmission near one of the axle shafts (it may need replacing).

P0700 = EATX controller DTC present.
This simply means you have transmission related codes.

P0732 = Gear ratio error in 2nd gear.
This code is of some concern, it means the transmission is slipping in 2nd gear. However the trans may be in limp mode due to the speed sensor code (limp mode means the trans starts out in second gear in order to at least get to a mechanic). The first thing I would do is have these codes cleared as there may be absolutely nothing wrong with the transmission (especially if you pull the trans dip stick and the fluid does not have a burnt smell. The vehicle should drive normally after that. If the check engine light comes back, have the codes scanned ASAP (before any other unrelated code sets). Chances are it may be the output speed sensor if this happens (easy fix). Hope this helps

Regards

The transmissions available in your caravan are problematic for having a bad solenoid pack. Once the transmission is set in the LIMP IN mode, then you need to take it to a dealer to get the code reset from the transmission and to get it diagnosed properly. I'm sure there will be a code such as, "trans solenoid stuck in LR" which means " low range" if the transmission went into limp in mode, then that simply means it defaulted to second gear only. Which is telling you to have it looked at asap. I'm sure if you repalce the transmission solenoid pack and gasket and perform the re-learn procedure, then your problem will go away. good luck!

sounds like to prndl switch may be malfunctioning.
gear selector switch, which tells the transmission which gear it is in.

possibly one of your electronic solenoids in the trans has died