How do I access the rear wiper motor on a 2015 Tahoe? I need to change it out.

Rear Wiper/Washer System Components
The rear wiper/washer system consists of the following components:
• Rear wiper/washer switch
• Window wiper module-rear
• Window washer pump-rear
• RR WIPER 15A fuse
• RR WPRB 25A fuse
Rear Wiper/Washer System Operation
The rear wiper module controls rear wiper motor operation. Battery voltage supplied to the module is used to operate the wiper motor in all modes and to return the rear wiper arm to the park position after the ignition is turned off. Accessory voltage supplied to the rear wiper/washer switch is used to supply the rear window wiper and washer switch signal circuits. In wiper switch positions 1 and 2 the wiper switch signal circuit voltage level to the wiper motor module determines the wiper motor delay interval. The rear window washer pump supply voltage circuit is used to provide the operating voltage for the rear washer pump for as long as the rear washer switch is pressed. The rear window washer switch signal circuit is used as a wash signal to the rear wiper motor module to operate the wipers during the rear wash operation.


Did you replace the rear wiper module ?

How To Install Replace Rear Window Wiper Motor 2000 06 Chevy Suburban Tahoe

The whole wiper motor.

Good day, if you can hear a pulsating buzz coming from the wiper motor, you probably have a grounding problem. If you do a fixya search for 2005 Chevrolet Tahoe, then at bottom of page under how tos I have a tip to fix rear wiper. If Chevrolet used that same wiper motor on your car, maybe it will fix yours too. Since it is a different model removal of panels to get wiper motor access will be different, then connect a wire from wiper motor frame to a good chassis ground. Good luck.

My 2005 tahoe did the same thing. I also bought a new motor, which did not fix. I discovered there was a bad ground. Instead of searching for bad ground, just install a short length of stranded wire with crimp terminals between a wiper motor mounting bolt and a rear glass latch assy mounting bolt to restore good grounding to the wiper motor.

I have a how to tip for exactly this same problem with 2005 Tahoe. Do a fixya search for FIX 2005 TAHOE REAR WIPER.

You will have to remove wiper arms then the cowl cover.Should be visible from there.

You need to remove your wiper arms and take off the plastic cowl panel.

Check the wiper motor connection if its touching anything and loose it will automatically ground out and check at connection make sure you put some gel and then snap it in/ Please rate my response thank you very much

sounds like the ground on the rear wiper motor isn't making a good ground contact , check the wiring see if its connected properly.