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

3rd**

1st

2nd***

1-2 Shift Solenoid

ON

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

OFF

OFF

ON

OFF

2-3 Shift Solenoid

OFF

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

OFF

OFF

ON

OFF

OFF

2nd Clutch

--

--

--

A

A*

A*

--

A

A*

--

A

A*

--

A

2nd Roller Clutch

--

--

--

H

O

--

--

H

O

--

H

O

--

H

Int./4th

Band

--

--

--

--

--

A

--

--

--

--

A

--

--

A

Reverse Clutch

--

A

--

--

--

--

--

--

--

--

--

--

--

--

Coast Clutch

--

--

--

--

--

--

A

A

A

A

A

A

A

A

Input Sprag

--

--

H

H

H

O

H

H

H

H

H

H

H

H

Direct Clutch

--

--

--

--

A

A

--

--

A

--

--

A

--

--

Forward Clutch

--

--

A

A

A

A*

A

A

A

A

A

A

A

A

Lo/Rev Band

A

A

--

--

--

--

--

--

--

--

--

--

A

--

Lo Roller Clutch

--

--

H

O

O

O

H

O

O

H

O

O

H

O

  • A = Applied
  • H = Holding
  • O = Overrunning
  • ON = The solenoid is energized
  • OFF = The solenoid is de-energized
  • * = Applied with no load
  • ** = 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)
  • Manual FIRST-THIRD gear is also possible at high vehicle speed as a safety feature