Owner Letter
December 26, 1991
Subject: Service Action
1991/92 Porsche 911 Turbo Vehicles
Replacing/checking Turbo Control Unit
Dear Porsche Owner:
Our records indicate that you are the owner of a Porsche model 911 Turbo. Porsche AG has determined that the Turbo Control Unit may be equipped with defective software. Vehicles affected may not start at temperatures below 32~ Fahrenheit.
A modified Turbo Control Unit has been developed by Porsche AG. To prevent inconvenience the Turbo Control Unit on your vehicle should be checked and, if necessary, replaced.
Please contact your Porsche dealer for an appointment as soon as possible to have the necessary work performed at our cost. Replacement parts should be available at your Porsche dealer.
The estimated time to perform the necessary work is approximately 30 minutes.
If your Porsche dealer fails, or is unable to perform this work without charge to you within a reasonable amount of time, you may call or write to:
Porsche Cars North America, Inc.
100 West Liberty Street
P.O. Box 30911
Reno, NV 89520-3911
attn: Owner Relations
telephone: 1-800-545-8039
We sincerely regret any inconvenience this action may cause, nevertheless, we are confident that you understand our interest in you as our valued Porsche customer.