GM Service Manual Online
For 1990-2009 cars only

Range

Park/Neutral

Reverse

D

3

2

1

Gear

N

R

1st

2nd

3rd

4th

1st

2nd

3rd

1st

2nd

1st

Solenoid Valve 1

ON

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

ON/OFF

Solenoid Valve 2

ON

ON

ON

OFF

OFF

OFF

ON

OFF

OFF

ON

OFF

ON

Line Pressure Control Solenoid (PCS 3) Valve 3

OFF

OFF

OFF

ON

ON/OFF

ON/OFF

OFF

ON

ON/OFF

OFF

ON

OFF

Line Pressure Control Solenoid (PCS 4) Valve 4

ON

OFF

ON

ON

ON

OFF

ON

ON

ON

ON

ON

ON

Line Pressure Control Solenoid (PCS 5) Valve 5

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

ON

ON

ON

Line Pressure Control Solenoid (PCS 6) Valve 6

ON

OFF

ON

ON

ON

OFF

ON

ON

ON

ON

ON

ON

Brake B

A

A

A

--

A

--

A

--

A

A

--

A

Brake C

--

--

--

--

--

H

--

--

--

--

--

--

Brake D

--

H

--

--

--

--

--

--

--

--

--

--

Brake E

--

--

--

A

A

A

--

A

A

--

A

--

Brake F

--

--

H

H

--

--

H

H

--

H

H

H

Lock-up Clutch

--

--

--

--

--

A

--

--

--

--

--

--

  • A = Applied
  • H = Holding
  • ON = The solenoid is energized.
  • OFF = The solenoid is de-energized.
  • **Manual Second-Third gear is only available above approximately 100 km/h (62 mph).
  • ***Manual First-Second gear is only available above approximately 60 km/h (37 mph).
  • Note: Manual First-Third gear is also possible at high vehicle speed as a safety feature.