Garmin GPS 175 Service Bulletin

st
1200 E. 151 Street
Olathe, KS 66062
913-397-8200
TO: Non-Certified Aircraft Owners Performing the Subject Upgrade
DATE:
April 24, 2020
SUBJECT: GPS 175/GNX 375/GNC 355 Main Software Version 3.10
REVISION B: Added GNX 375 Steps
CERTIFICATION
AUTHORIZATION:
TSO Authorization Software for Non-Certified Aircraft (see Approval section
for details)
______________________________________________
Note: This Service Bulletin is provided solely for the purpose of installing the Subject software in
non-certified aircraft. This Service Bulletin is not intended for software installation on certified aircraft whose
maintenance must be performed by persons authorized in accordance with 14 CFR 43.3. This software update
is NOT an owner/operator eligible activity as "preventative maintenance" under 14 CFR 43 for FAA certified
aircraft. Non-certified aircraft owners who, upon reviewing these instructions, do not feel qualified to perform
this upgrade without any assistance should contact a Garmin dealer to perform this important upgrade.
PRODUCTS AFFECTED
GPS 175, GNC 355, and GNX 375 products listed below with Main Software Version 3.03 and earlier are
affected:
NOTE
The software installation procedure documented in this bulletin can be used to load
Software Version 3.10 from a newer software version.
Except as expressly provided herein, no part of this document may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage
medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this
document and of any revision to this document onto a hard drive or other electronic storage medium to be viewed and to print one copy of this document
or of any revision hereto, provided that such electronic or printed copy of this document or revision must contain the complete text of this copyright notice
and provided further that any unauthorized commercial distribution of this document or any revision hereto is strictly prohibited.
Service Bulletin 2048
April 24, 2020
SERVICE BULLETIN
(Non-Certified Aircraft)
NO.: 2048 Rev B
Table 1. Products Affected
Model
GPS 175
GNX 375
GNC 355
GNC 355A
© 2020
Garmin Ltd. or its subsidiaries
All Rights Reserved
Appliance P/N
011-04377-00
011-04378-00
011-04956-00
011-04956-30
Page 1-10
Revision B