How to replace side mirror glass on 2004 grand cherokee jeep

no symptoms posted (broke glass or ???) can we be on same page?
"how do I switch," verb switch , the mirror as switches inside, too.

please say what that word means. switch and the failure.
1: remove and replace with new.
2: move right to left and left to right side.

why would you do that #2
fold away mirrors/ Export only (this is usa forum so..)
these,NASA grade mirrors are very complex... not just glass and plastic. heaters ,motors, memory , etc.

the FSM cover all tests for the mirror, including scan data.

ill quote the FSM now , 8 steps (just 1 fail,not heat, not memory failure or fold failure)
ONE MIRROR INOPERATIVE
(1) If the one inoperative mirror is on the passenger
side, go to Step 2. If the one inoperative mirror is
on the driver side, go to Step 3.
(2) Check if the passenger front door will lock and
unlock using the power lock switch on the driver side
front door. If OK, go to Step 3. If not OK, go to Step 6.
(3) Disconnect and isolate the battery negative
cable. Remove the trim panel from the front door.
Disconnect the 12-way mirror wire harness connector
from the door wire harness connector.
(4) Using two jumper wires, test the mirror as
shown in the Mirror Test chart (Fig. 2). If the mirror
tests OK, go to Step 5. If the mirror does not test
OK, replace the faulty mirror.
(5) Disconnect the 12-way door wire harness connector
from the door module connector receptacle.
Check all of the circuits of the door wire harness
between the connector for the mirror and the connector
for the door module for opens or shorts. If all of
the circuits are OK, replace the faulty door module.
If any of the circuits are not OK, repair the open or
shorted circuit(s) as required.
(6) Use a DRB scan tool and the proper Diagnostic
Procedures manual to test and repair the faulty Programmable
Communications Interface (PCI) data bus
communication between the two door modules.

(bar stool answer) all cars. mostly
pull door skins
unplug motor conn.
unscrew mirror base from door.
extract mirror,

Your fuse box will tell you if it is heated or not, on the right side under the hood, breaker box, heated mirror, the plastic cover inside the car behind the mirror pops off exposing a few bolts, it will drop the mirror, it is heavy, so don't let go. The wires have to be disconnected inside the door. Hope this helps.

on the inside of the door take the pannel off and remove the three nuts on the back side of the mirror. the mirror will then just pull or fall off

you should be able to purchase just the miror from the factory dealer >note: thy want to sell the whole asmebly so be ready to tellem thats unexceptable
since there just going to order the mirrior and tell you thy replaced the whole thing!

i recomend finding a local glass store and having them cut the mirrior for you as its usaly cheaper and 3-5 days faster

on reataching the mirrior use a full sticky tak sheet not just 2 strips like from the factory as the 2 or 3 strip method causes them to break if bumped to hard
as you have already found out >yours is broken!
good luck

if you mean the mirror glass drifting down... than check your mirror switch at the driver door and the wiring from the switch to the mirror for a short or a perm. connected part of the switch. If necessary, replace the switch.

normally, if the mirror glass is broken you can remove this clip from the back or it is still in place and only the glass is out. If the mirror glasses are jumped out the system and you lost it completed, there is a chance to get replacement from the authorized dealership (replacement mirror glasses with attached clips). After marked parts are a great way to save money, but it works not all the time.

Remove the Old Mirror
1. Step 1 Disconnect the negative battery cable before you take off the grand Cherokee front door trim panel. Remove all screws and clips.
   
2. Step 2 Detachthe window trim cover screw, and control lever screw beforedisconnecting the entire mirror trim cover. Remove the rubber coverinside the mirror cover, and disconnect the electrical wire.
   
3. Step 3 Remove three nuts from the power mirror using a Torx® star-shaped screwdriver.
   
4. Step 4 Pull out the outside rear view mirror. Guide the power wire through the hole in the door.
   
Install the New Mirror
5. Step 1 Replace the old mirror. Put the new power mirror in place. Push the new wiring through the hole in the door.
   
6. Step 2 Install and tighten the three retaining screws you took off when removing the old mirror.
   
7. Step 3 Connect the power mirror wiring to the connection located on the door panel. Replace the rubber cover and interior mirror cover.
   
8. Step 4 Put the front door trim panel back in place by securing all clips and tightening all screws.
   
9. Step 5 Connect the Subaru Outback's battery cable to restore the power.
   

i will recommend i site where you will get all the information you need to remove and replace your side mirror
http://www.wjjeeps.com/mirrors.htm

get a wiring diagaram and check it.
the switch that controls which mirror you want to control could be stuck in the middle,or inoperative

most mirror glass pops out it has plastic clips on back of glass. first practice on broken one take a flat head screw driver and use rag to protect paint pry around glass to release but be gentle at the same time hope this helps u