GM 89047102
Distance Sensor

Replacement of the rear object sensor starts with removing the rear bumper fascia. A person must raise the housing locking tabs before extracting the rear object sensor. You should depress the spring before letting it disconnect from the housing. Afterwards remove the housing by releasing its tab locations. Remove the rear object sensor bezel which is mounted on the rear fascia surface. Avoid repainting sensors that have been painted before to be used. The new rear object sensor needs paint application followed by measuring its thickness to make sure the value remains under 6 mm using a non-ferrous metal-compatible paint thickness gauge. Line up the keyhole of the bezel with the key to press the assembly of the rear object sensor against the fascia surface. Install the housing to the cutouts on the bezel from the back side of the fascia while positioning the spring keys at the top and bottom of the housing. The first task is to install the spring onto the housing before adding the decoupling ring to the sensor. Place the housing sensor inside so that the connector points toward the passenger side of the fascia and push sensor tabs into housing cutouts. Link the electrical connector before putting back the rear bumper fascia.

Start the replacement of the rear object sensor by removing the rear bumper fascia. Unlock the tabs holding the housing to extract the rear object sensor from its position. Pull the spring's sides while detaching it from the housing before opening the housing tabs for removal. Remove first the rear object sensor bezel from the rear fascia. Application starts with painting the new rear object sensor while avoiding refinishing of pre-existing sensors. Employ a suitable paint thickness gauge for non-ferrous metals to measure paint layer thickness until it reaches 6 mm. Properly place the keyhole against the key before pushing the rear object sensor bezel firmly against the fascia. Attache the fascia bezel housing by connecting its cutouts from behind the fascia before permanently attaching the spring to the housing with the spring keys set at the housing's upper and lower sections. Before assembly you must install the decoupling ring to the sensor while sliding the sensor into the housing so that its connector points towards the passenger side of the fascia. The last step involves attaching the electrical connector while returning the rear bumper fascia in place.