Remote unlock=fine & lock button=nothing???

have you replaced the fob battery? you can get a free 12v load test at many auto parts stores, how old is it?

 

Do you see a red light on the remote ignite when you push any of the buttons every time you push a button you should see a red light up in the corner of the key fob light up. If not maybe time to look into a battery for the remote or fob hopefully that's all it takes If not it's going to be some fun.

 

I had this for a short period where I could not lock the car when it sat on my driveway. It only seemed to happen on the driveway because the locks worked fine away from home. I verified this by driving it 10 metres (30 ft) down the road and the locks worked fine. I determined the distance from the driveway that was the trigger point by driving a metre (a yard) and retesting and found that around 3 m (9 ft) the locks stopped working. I put this down to EM/RF interference and just as suddenly as it started, a few days/weeks later it stopped and has not reoccurred.

It most likely won't be this, but it is something to try.

In regards to the rear hatch, has your CM (combination meter) - that is, the odometer, gear selector, gauges, etc, stopped working lately? If so, this also stops the rear hatch release from operating.