Ford 2008 Escape Hybrid Owner's Manual page 236

Roadside Emergencies
If the jump start button is pressed, but the indicator on the button
flashes slowly, the low voltage (underhood) battery may not have enough
energy to charge the high voltage battery. If this occurs, refer to the
Jump starting your vehicle (Low voltage [underhood] battery only)
section in this chapter for information on jump starting the low voltage
(underhood) battery. You may perform another high voltage battery jump
start by pressing the jump start button after having connected the
jumper cables and starting the booster vehicle.
Once the engine is started, the jumper cables should be removed as
described in the Jump starting your vehicle (Low voltage
[underhood] battery only) section.
236
2008 Escape Hybrid (ehv)
Owners Guide (post-2002-fmt)
USA (fus)