Suspension Fault, not lifting out of access mode. what should i do? on 2007 Land Rover Range Rover Sport

my dash reads tire monitoring system fault, vehicle lifting slowly, & check side light. Won't lift higher than access. What should I do?

1 answer 2 comments
seek diag and est poss air susp leak or pump failure
can you tell me what "check side light " is??
the light that says service eng soon or a yellow light that looks like an engine