B15090C Version 1
Never Use Conventional Wheel & Tire Assemblies on PAX System Equipped Vehicles
2006−08 RL with Technology Package
- Raises Serious Concerns: On vehicles designed for the PAX system, if there’s a major drop in tire pressure, a message comes up on the MID essentially telling you it’s OK to keep driving. That message comes up because you can safely drive on a PAX system tire for a limited distance, even when it’s significantly underinflated or flat. The problem is that message will come up even if the vehicle is later outfitted with conventional wheel & tire assemblies. Driving on underinflated conventional tires can result in a blowout or loss of control.
- Affects Ride and Handling: Since the vehicle was designed for the PAX system, its suspension is specifically tuned for it. Running on conventional wheel & tire assemblies can compromise the vehicle’s ride and handling.
For those reasons, we don’t recommend or approve of using conventional wheel & tire assemblies on PAX system equipped vehicles and we clearly state this in the owner’s manual. Any person or business that installs a conventional wheel & tire assembly on a vehicle designed for the PAX system does so at their own risk and is solely responsible for any resulting loss or damage.