Subaru 2005 Impreza Owner's Manual page 337

Driving tips
and trailer are acceptable.
Total trailer weight
Total trailer weight
The total trailer weight (trailer weight plus its cargo
load) must never exceed the maximum weight shown
in the following table.
8-30
Model
MT models
AT models
HS8016AA
Conditions
When towing a trailer with-
out brakes.
When towing a trailer with
brakes.
When towing a trailer with-
out brakes.
When towing a trailer with
brakes.
When towing a trailer on a
long uphill grade continu-
ously for over 5 miles (8 km)
with an outside temperature
of 104°F (40°C) or above.
Maximum to-
tal trailer
weight
1,000 lbs
(453 kg)
2,000 lbs
(906 kg)
1,000 lbs
(453 kg)
2,000 lbs
(906 kg)
1,000 lbs
(453 kg)