Cold weather causes wiper arms blades to stop at outer sides

linkage that connects the motor to the arms, stripped or loose.

There is a nut under the black plastic bezel that needs to be removed. Here is the complete procedure for you to look at. Its possible that your arm isn't adjust at wiper motor...

REMOVAL
- Disconnect and isolate the battery negative cable.
- Remove the rear wiper arm from the rear wiper motor output shaft. (Refer to 8 - ELECTRICAL / REAR WIPERS / WASHERS/REAR WIPER ARM - REMOVAL).
- Using a small thin-bladed tool, gently pry at the notch in the base of the rear wiper motor output shaft bezel to unsnap the nut cover from the bezel (REAR WIPER MOTOR OUTPUT SHAFT NUT REMOVE/INSTALL). Be certain to take proper precautions to protect the outer tailgate panel and its paint finish from damage during this procedure.
- Remove the nut that secures the rear wiper motor output shaft to the outer swing gate panel (REAR WIPER MOTOR OUTPUT SHAFT NUT REMOVE/INSTALL).
- Remove the bezel and gasket from the rear wiper motor output shaft.
- Remove the trim panel from the tailgate inner panel. (Refer to 23 - BODY/SWING GATE/TRIM PANEL - REMOVAL).
- Disconnect the tailgate wire harness connector for the flip-up glass ajar switch from the flip-up glass latch connector receptacle.
- Disconnect the tailgate wire harness connector for the rear wiper motor from the motor connector receptacle (REAR WIPER MOTOR REMOVE/INSTALL).
- Loosen the two screws that secure the rear wiper motor mounting bracket to the top of the tailgate inner panel.
- Slide the rear wiper motor and mounting bracket forward far enough to disengage the two mounting screws from the keyed slots in the top of the tailgate inner panel.
- Remove the rear wiper motor and mounting bracket from the tailgate as a unit.



1 - BEZEL AND GASKET
2 - OUTPUT SHAFT
3 - TAILGATE OUTER PANEL
4 - NUT
5 - NUT COVER

What you will need to do is to remove the small plastic cap on the wiper arm by prying it off with a screw driver. Then remove the nut that holds the arm onto the shaft. Then get yourself a battery cable puller (from auto parts store) and pull the arm off of the shaft..



1 - SPARE TIRE
2 - WRENCH
3 - FLIP-UP GLASS
4 - PARK RAMP
5 - REAR WIPER ARM
6 - PIVOT COVER

Hello,

1. After you have removed the old wiper blade make sure to remove any adapter left behind on the actual wiper arm as the new blade should come with a multi use adapter.
2. It should just be a bare metal rounded hook bar now.
3. Now if there is not adapter on the new wiper blade then put the one provided on. Often times the wiper blade comes with this adapter already on the wiper blade.
4. Pull the wiper arm out a bit and set the new blade under the open section of the wiper arm.
5. That adapter will have a little play to it.
6. Push it up a bit so it fits in the slot on the wiper arm and pull up on the wiper blade and the blade should "click" into place.

Do the same for the other side and your good to go. I also recommend Raine X for your windshield. My experience as a mechanic and a storm chaser has proven Rain X to be invaluable in severe weather.
Regards, Tony

With the arms off you will see the mechanism moving back and to if you switch the wipers on and all is OK. If not, then the motor/linkage is faulty. If Ok replace the arms and just "nip up" the retaining nut. The arms seat on serrated spindles and if the soft metal of the arms becomes damaged they do not grip and consequently are useless. In this cold weather the blades get stuck to the windscreen and can cause this if loose.

Wiper Arm & Blade (Front) Removal & Installation Wiper Blade To Remove:

1. Turn ignition switch to ACCY position.
2. Turn wiper switch to PULSE position and turn ignition OFF when wipers are stopped in the innerwipe position.
3. Push the wiper blade clip button IN and remove wiper blade from wiper arm.

To Install:

1. Insert wiper arm hook through opening in wiper blade.
2. Place wiper blade pivot in the inside radius of wiper arm hook.
3. Pull on wiper blade pivot into hook until it locks into place.
4. Check wipers for proper operation.

Wiper Arm To Remove:
NOTE: Mark position of wiper blade on windshield to ensure proper position upon reassembly.

1. Remove washer hose.
2. Lift wiper arm from windshield and use a screwdriver to disengage retaining latch.
3. Remove wiper arm from shaft.

To Install:

1. Place wiper arm on shaft so that wiper arm aligns with marks placed on windshield.
2. Press arm assembly on shaft and push retaining latch IN.
3. Connect washer hose.
4. Remove windshield markings and check wipers for proper operation.

This is a fairly simple job.
#1 Pull the wiper arm away from the vehicle.
#2 Turn the blade 90 degrees so that the blade and the arm make a 'capital T' shape.
#3 Pull the blade straight off of the arm.
#4 Install the new wiper blade so that it forms a ' T ' with the arm.
#5 Turn the blade back to the normal position in line with the arm.
#6 Ease the wiper arm and blade back against the windshield.
#7 You are done. Good luck

Hi

Sounds to me like the "parking" contacts inside the wiper motor have broken off / worn.
Needs to remove wiper moter / dismantle to inspect. (On some models you can purchase these contacts.)

renew the arm itself ,sounds like the joint is seized or the spring is weak and the blade is not flicking over

the wiper arm assembly is stripped for the knurled knob that is sits on.  replace the wiper arm with a new one.

Yes the spring in the arm is weak, replace the arm and your problem will be solved.