Brake Antilock Control Unit/module problems of the 2004 Land Rover Range Rover

Driving at 35 mph on a slightly slope blvd. The 2004 Range Rover experience a sudden lack of control by driver. Immediately felt Range Rover weave slightly out of control and rear end dipping downward. The driver had to react quickly to compensate and regain control to continue driving safely. Immediately contacted (other-foreign) repair shop and drove 5 minutes to shop. Shop ase tech diagnosis problem as abs control module failed. Reason for spontaneous air suspension lifts to vehicle when sitting in traffic. Tech notes: failure with air suspension will cause vehicle to lean (off balance) and may create hazardous driving conditions. Abs control module cost to repair $2,000. - $2,500 further diagnostic needed to determine possible other related issues to spontaneous air suspension lifting. If found leakage of suspension airbags, each air bag approximately $600 each on rear suspension. Owners feels this is an obvious and well known problem with Range Rovers (and other landrover models) which the manufacturer is ignoring. Owner feel manufacturer continuance to not addressing the issue may cause grave inquiry if and when suspension fails while driving.