Rear seat video screens do not work in GMC Terrain

Check in the under hood fuse block or power distribution center for fuse #72 and #75 these are 60 amp fuses. If the problem isn't there you have Two separate problems, check at the switches for battery voltage and ground. The most common problem is switches.

What would have blown the fuse, a shorted component?

HVAC fuse # 44 30 amp located in the rear fuse box , Do you know where that is ? Doesn't you blower work on any speed ? Separate fuse for high speed . Blower fuse 35 40amp fuse in the under hood fuse/relay box. engine compartment .
Fuse Block - Rear
Beneath the left rear seat
Good luck !

1) Front End Sensor - Right--Located under the front hood in the engine compartment (2) I/P Air Bag--Located at the top right under the instrument panel (3) Roof Rail Air Bag - Right--Located under the headliner, extending from the passenger front windshield pillar to the passenger rear windshield pillar (4) Side Impact Sensor (SIS) - RF--Located under the right front door trim near the lower rear of the door frame (5) Sensing and Diagnostic Module (SDM)--Located underneath the vehicle carpet under the center console (6) Seat Belt Pretensioner - RF--Located under the trim near the bottom of the center pillar (7) Side Impact Sensor (SIS) - RR--Located under the right rear door trim near the lower rear of the door frame (8) Roof Rail Module - Right--Located behind the garnish molding on the upper rear pillar (9) Roof Rail Module - Left--Located behind garnish molding on the upper rear pillar (10) Side Impact Sensor (SIS) - LR--Located under the left rear door trim near the lower rear of the door frame (11) Seat Belt Pretensioner - LF--Located under the trim near the bottom of the center pillar (12) Side Impact Sensor (SIS) - LF--Located under the left front door trim near the lower rear of the door frame (13) Roof Rail Air Bag - Left--Located under the headliner, extending from the driver front windshield pillar to the driver rear windshield pillar (14) Steering Wheel Air Bag--Located on the steering wheel (15) Vehicle Battery--Located at the front left of the engine compartment. (16) Front End Sensor - Left--Located under the front hood in the engine compartment

There should be a button or lever at the base of the head rest. They are not always easy to see. It will either push or pull to release it.

fit a stronger flasher unit this shud sort it out

check rear wiper fuse and relay.if wiper motor getting power but do not work.rear wiper motor bad.if fuse and relay okay but no power going to rear wiper rear wiper switch could be bad.

In the rear fuse panel (under rear seat), check fuse# 46 (AUX PWR)

both the rear passenger side wont unlock ???? How many doors are on the passenger side ? Or both back doors don't unlock ? Two relays lock / unlock the back door's Not the lift gate . The BCM controls the relay's . The relay's are located in the rear fuse box . Under back seat .