SERVICE STALL DIAGNOSTIC SYS. SOFTWARE UPDATE (TIMING). Saturn Saturn 1991

For 1990-2009 cars

# SERVICE STALL DIAGNOSTIC SYS. SOFTWARE UPDATE (TIMING)

#### SUBJECT : Saturn Diagnostic Systems - Software Update Timing

#### TO: Saturn Fixed Operation Managers

You will receive software updates for the Service Advisor System (SAS) and Service Stall System (SSS) approximately every three months. These updates contain enhancements to diagnostic accuracy, user-friendliness, and changes to keep pace with vehicle on-board systems.

While minor changes to software, and Powertrain Control Module (PCM) Electrically Erasable/Programmable Read-Only Memory (EEPROM) calibrations will continue to be distributed by satellite system, the software size of major updates prevent satellite distribution.

SAS and SSS updates will arrive together. SAS updates will consist of diskettes. SSS updates will consist of a Compact Disc-Read Only Memory (CD-ROM) disc.

Each diagnostic system software update package will include explanations of software changes and instructions on the load procedures. It is important that you have these updates loaded as soon as possible upon receipt, so that we may continue satellite distributions. Also, please forward the explanations of software changes to the appropriate personnel.

If you have any questions upon receipt of these updates, please call the Saturn Retail Systems Customer Support Center at 1-800-7-SATURN. Prompter #2 for diagnostics.

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.