Correction to Sierra Wireless October 28, 2009 Press Release

TSX: SW
NASDAQ: SWIR

VANCOUVER, Oct. 29 /PRNewswire-FirstCall/ - An inadvertent mathematical error
was made in our October 28, 2009 press release on page 2 in the supplemental
table reconciling our Q3 2009 GAAP to non-GAAP results. The Non-GAAP gross
margin in the first column titled "Sierra Non-GAAP" should be $33.1 million
instead of $34.6 million. All other numbers in the table are correct.

Cautionary Note Regarding Forward-Looking Statements

Certain statements in this press release that are not based on historical
facts constitute forward-looking statements or forward-looking information
within the meaning of the U.S. Private Securities Litigation Reform Act of
1995 and applicable Canadian securities laws ("forward-looking statements").
These forward-looking statements are not promises or guarantees of future
performance but are only predictions that relate to future events, conditions
or circumstances or our future results, performance, achievements or
developments and are subject to substantial known and unknown risks,
assumptions, uncertainties and other factors that could cause our actual
results, performance, achievements or developments in our business or in our
industry to differ materially from those expressed, anticipated or implied by
such forward-looking statements. Forward-looking statements in this press
release include all financial guidance for the fourth quarter of 2009, and all
other disclosure regarding possible events, conditions, circumstances or
results of operations that are based on assumptions about future economic
conditions, courses of action and other future events. We caution you not to
place undue reliance upon any such forward-looking statements, which speak
only as of the date they are made. These forward-looking statements appear in
a number of different places in this press release and can be identified by
words such as "may", "estimates", "projects", "expects", "intends",
"believes", "plans", "anticipates", "continue", "growing", "expanding", or
their negatives or other comparable words. Forward-looking statements include
statements regarding the outlook for our future operations, plans and timing
for the introduction or enhancement of our services and products, statements
concerning strategies or developments, statements about future market
conditions, supply conditions, end customer demand conditions, channel
inventory and sell through, revenue, gross margin, operating expenses,
profits, forecasts of future costs and expenditures, the outcome of legal
proceedings, and other expectations, intentions and plans that are not
historical fact. The risk factors and uncertainties that may affect our actual
results, performance, achievements or developments are many and include,
amongst others, our ability to develop, manufacture, supply and market new
products that we do not produce today that meet the needs of customers and
gain commercial acceptance, our reliance on the deployment of next generation
networks by major wireless operators, the continuous commitment of our
customers, and increased competition. These risk factors and others are
discussed in our Annual Information Form and Management's Discussion and
Analysis of Financial Condition and Results of Operations, which may be found
on SEDAR at www.sedar.com and on EDGAR at www.sec.gov and in our other
regulatory filings with the Securities and Exchange Commission in the United
States and the Provincial Securities Commissions in Canada. Many of these
factors and uncertainties are beyond our control. Consequently, all
forward-looking statements in this press release are qualified by this
cautionary statement and we cannot assure you that actual results,
performance, achievements or developments that we anticipate will be realized.
Forward-looking statements are based on management's current plans, estimates,
projections, beliefs and opinions and we do not undertake any obligation to
update forward-looking statements should the assumptions related to these
plans, estimates, projections, beliefs and opinions change, except as required
by law.

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR - TSX: SW) products connect people and machines
to wireless networks around the world. We offer an advanced, comprehensive
product line, addressing consumer, enterprise, original equipment manufacturer
and specialized vertical industry markets. We also offer a wide range of
professional and operated services. Our solutions are used for mobile
computing, transportation, industrial M2M (machine-to-machine), enterprise,
residential and consumer communications applications. For more information
about Sierra Wireless, visit www.sierrawireless.com.
"AirCard" is a registered trademark of Sierra Wireless. Other product or
service names mentioned herein may be the trademarks of their respective
owners.

SOURCE Sierra Wireless, Inc.

Sierra Wireless, Inc., David G. McLennan, Chief Financial Officer, (604)
231-1181, Website: www.sierrawireless.com, Email: investor@sierrawireless.com