| Subject: | Diagnostic Trouble Code (DTC) U1000 - Lost Communication With Unknown Device (Class 2) |
| Models: | 2005-2006 Cadillac XLR |
| 2005-2006 Chevrolet Corvette |
| with Low Tire Pressure Indicator (RPO UJ6) |
| Attention: | This bulletin applies to General Motors (GM) of Japan Chevrolet and Cadillac Dealers ONLY. |
Some GM of Japan Chevrolet and/or Cadillac dealer technicians may discover a current DTC U1000 set in the Body Control Module (BCM) during pre-delivery inspection (PDI) or during diagnosis of a different DTC concern. If the DTC is cleared and the ignition
is cycled, the DTC will reset. There are NO visible indications or system interactions discernible by the technician or the customer.
The DTC is transparent to the technician/customer and has no effect on the vehicle systems' operations and/or vehicle performance.
NO REPAIR attempts should be made.
