PSA for 2015 LR4 owners - electrical issue
We got our '15 LR4 Lux right around the new year and almost immediately ran into an unknown issue. Periodically the car would show a string of warnings - HDC fault, stability control unavailable, emergency brake assist not available - which would result in the car dropping to the bump stops and losing access to any of the terrain response programs. It cleared after a restart on a couple of occasions, but after about 2 weeks it happened again and could not be cleared by restarting or even pulling the battery terminals. Took it in to the dealer who diagnosed the problem as a sticking exhaust valve in the compressor for the air suspension. After picking the car up, go home and upon the first restart, the errors appeared again. Back to the dealer...
The dealer opened up a case with LRNA and were told of an issue that LR is becoming aware of that may affect all '15 models with the cooler box. They said the box is remaining active after the ignition is turned off, which is somehow interfering with the signals on the BUS, including the data from the suspension sensors. They only have a temporary solution which was to pull the related fuse for the cooler box (#16). LR is working on a permanent fix but no ETA on when it will be released.
Just wanted to pass this along in case others have a similar issue. They looked for a solution for a week before getting this info. I talked to another dealer who was not aware of it yet. The only thing I have thus far is a TSB number SSM-72146. Will update if I hear of a permanent fix.
We got our '15 LR4 Lux right around the new year and almost immediately ran into an unknown issue. Periodically the car would show a string of warnings - HDC fault, stability control unavailable, emergency brake assist not available - which would result in the car dropping to the bump stops and losing access to any of the terrain response programs. It cleared after a restart on a couple of occasions, but after about 2 weeks it happened again and could not be cleared by restarting or even pulling the battery terminals. Took it in to the dealer who diagnosed the problem as a sticking exhaust valve in the compressor for the air suspension. After picking the car up, go home and upon the first restart, the errors appeared again. Back to the dealer...
The dealer opened up a case with LRNA and were told of an issue that LR is becoming aware of that may affect all '15 models with the cooler box. They said the box is remaining active after the ignition is turned off, which is somehow interfering with the signals on the BUS, including the data from the suspension sensors. They only have a temporary solution which was to pull the related fuse for the cooler box (#16). LR is working on a permanent fix but no ETA on when it will be released.
Just wanted to pass this along in case others have a similar issue. They looked for a solution for a week before getting this info. I talked to another dealer who was not aware of it yet. The only thing I have thus far is a TSB number SSM-72146. Will update if I hear of a permanent fix.
Last edited:
