When the engine is warm, the underhood bussed electrical center (ubec) housing will expand, causing the headlamp low-beam relay control circuit routed wire to bend slightly. After the wire is repeatedly bent, it has fractured and separated. When this occurs, the low-baem headlamps will not illuminate. As the ubec housing cools and contracts, the low-beam headlamp function may return. This condition is not affecting the high-beam headlamps, marker lamps, turn signals, daytime running lamps or fog lamps. Loss of low beam headlamps when they are required could reduce the driver's visibility, increasing the risk of a crash.....which would be fatal. Appears that other year Corvettes have had this issue (see Dec 2014 bulletin 13146 "recall bulletin" - low-beam headlamps inoperative." GM admits to a "customer satisfaction program" which is not a "recall." And that they are not required to do anything about it. Sweet! how convenient for GM.

- Houston, TX, USA

The contact owns a 2011 Chevrolet Corvette. While driving approximately 60 mph, a chime sounded and all the instrument panel warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 4,000.

- Los Angeles, CA, USA

Car is a 2011 Corvette grand sport coupe. Intermittent display of "max speed 80 mph, service active handling, service traction system and the security light for the antitheft system stays on. When you turn the car off and restart 1-2 times, codes clear and operation returns to normal. Took car back to dealer three times. Last time (28000 miles) they kept car overnight and drove over 100 miles before they finally reproduced the problem. On 6/12/12 they replaced the ebcm and invoice description said "28216 checked and found codes P2548 and P0856. Performed diagnostic for codes and found intermittent loss of data from ebcm to ECM. Replaced ebcm and reprogrammed module. Code #28841. Rechecked after repairs ok at this time". problem recurred last week on 8/26/12 at 33000 miles. Will take back to dealer this week.

- Carefree, AZ, USA