WHAT DOES SRX4 SIGNIFY? WHAT DOES THE 4 SIGNIFY? IS IT 4 WHEEL DRIVE?

Not all cherokees were fitted with a 2 wheel drive option. You should have two shift sticks in the centre console. Your normal Park, Reverse and Drive selector and a smaller, shorter stick to the left of it.
This shorter stick will show you your drive options.
If you only have the first three listed yours is permanently 4 wheel drive, sometimes called AWD, (All Wheel Drive).
Starting furthest away from the engine, they should read as...
4Lo - Low ratio 4 wheel drive used just for 'off road' driving.
N - Neutral. This disconnects ALL drive to ALL the wheels.
4 FULL TIME - High Ratio 4 wheel drive. Normal road 4
wheel drive.
"Options that might not be fitted".
4 PART TIME - Automatically switches from 2 wheel drive
to 4 wheel drive if the rear wheels start to lose grip.
2WD - Dedicated 2 wheel drive only. Power is sent to the
rear wheels.

The vast majority of vehicles that have 2 wheel and 4 wheel drive will only light up something on the dash when in 4 wheel drive.(They also light up 4 wheel drive low if you have it) I've been driving 4 wheel drives for 25 years and have yet to see one that lights up something for 2 wheel drive.

4 wheel drive does not work - CarGurus

www.cargurus.com > Questions > Chevrolet > Suburban

CarGurusDec 17, 2009 - 4 wheel drive does not work - When I put the Sub in 4 wheel drive, low of high ... I want to "add" 4 wheel drive to my 95 1500 suburban w/ a 350.

My 4 wheel drive stopped working - CarGurus

www.cargurus.com > Questions > GMC > Sierra 2500

CarGurusJul 15, 2014 - My 4 wheel drive stopped working - After struggling with the 4 wheel drive ... sometimes in low sometimes in high, now it doesn't engage at all.

4WD not engaging all the time. - CarGurus

Does it say All Wheel Drive? If 4 wheel drive should have switch for 2 to 4 WD

Check 4 w actuator.

it is most likely an automatic awd, 4 hi is full time 4 wheel drive, 4 lo is full time 4 wheel drive but at a very low gear ratio and should not exceed 25 mph or could cause damage. and DO NOT shift into 4 lo while vehicle is in motion. Auto is a 2 wheel drive but automatically engages into 4 wheel drive under heavy acceleration.

well typically is there is a noise when making a turn its caused by a bad cv-joint but if your having problems with the 4 wheel drive i would look at the linkage to the transfer case and make sure there is not to much play or bent or broke rods and stuff.

Any vehicle that has to drive its own wheels requires horsepower. The more wheels that require power the more energy spent. If you only require 2 wheel drive to get you along that is good. Sometimes 4 wheel drive is needed. 4 wheel drive is needed in drastic situations. Does 2 wheel drive and 4 wheel drive differ? YES The power required to drive 4 wheels is increased 5.7% as to run 2 wheels. 4 wheel drive should be used at slow speed to overcome loss of traction of 2 wheel drive.
I hope this helps Moe

Just to clarify, the "transmission" is not stuck in 4-Lo. It is the "transfer case" that is attached to the transmission that actually engages the 4-Hi and 4-Lo modes. To properly shift your vehicle into 4-Lo, you know that you have to shift the transmission into neutral and slow down to less than 5 mph. Once your vehicle slows down to this range, your can switch your transfer case into 4-Lo mode. Due to the inner workings of the transfer case, the actual shift into 4-Lo may take a few seconds to complete. This is normal and does not signify that there is an issue. All transfer cases that have 4-Lo mode will act this way regardless of the make or model. To make a long story short, to shift out of 4-Lo you must follow the same steps that you took to shift into 4-Lo, just in reverse order. Switch the transfer case to 4-Lo mode if it isn't already there. Slow down to less than 5 mph (your vehicle must be moving, though). Then, shift your car into 4-Hi or 2WD. Give your vehicle several seconds to complete the shift. The transfer case indicator light will flash until it is complete. When it does complete the shift into the new gear mode, you will most likely hear a "clunk" (the range sleeve inside the transfer case disengages from its mating spline) from under your car. Again, any transfer case with 4-Lo (regardless of make or model) will exhibit this same noise. This should help you get out of 4-Lo. It is good practice to shift your car into and out of 4-Lo at least a few times each year to keep all of the splines free of corrosion and build-up. Based on the age of your vehicle, your transfer case may also need a complete flush and some new transmission fluid. Hope this helps.

are you setting still or driving when ingaugeing the 4 wheel drive if you are setting still try putting it in with vehicle moving if it does not light up steady in 4wd then it is not going in 4wd