For 1990-2009 cars

# INTERMITTENT MESSAGE ON DIC OR ERRATIC A/C OPERATION

#### VEHICLES AFFECTED: 1986-89 E/K, 1987-89 V ----------------------

Some 1986-1989 Toronados may display an "Electrical Problem" message on the Driver Information Centre or exhibit erratic A/C operation and set a BCM code B337 in history. To repair a vehicle with this condition replace the programmer with the proper one from the chart below:

New Programmer Models Part Number ------ --------------

1989 Toronados 16137740

1986-1988 Toronados 16137750

#### BUICK

Some 1986- 1989 Rivieras and Reattas may display the "Vehicle Computer Communications Problem Detected" page on the graphic control centre or exhibit erratic A/C operation and set a BCM code B337 in history. To repair a vehicle with this condition replace the programmer with the proper one from the chart below:

New Programmer Models Part Number ------ -------------- 1989 Rivieras and Reattas 16137740

1986-1988 Rivieras and Reattas 16137750

#### CADILLAC

Some 1986-1989 Eldorados and Sevilles and 1987-1989 Allantes may display a "System Problem" message on the Driver Information Centre or exhibit erratic A/C operation and set a BCM code B337 in history. To repair a vehicle with this condition replace the programmer with P/N 16137740.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.