GM Service Manual Online
For 1990-2009 cars only

The shift lever for the automatic transaxle is located on the console between the seats.

Maximum engine speed is limited when the vehicle is in PARK (P) or NEUTRAL (N) to protect driveline components from improper operation.

3800 V6 Engine


Object Number: 807234  Size: A2

There are several different positions for the shift lever.

PARK (P): This position locks the front wheels. It is the best position to use when the engine is started because the vehicle cannot move easily.

Caution: It is dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll.

Do not leave the vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to P (Park). See Shifting Into Park . If you are pulling a trailer, see Towing a Trailer .

Make sure the shift lever is fully in PARK (P) before starting the engine. The vehicle has an automatic transaxle shift lock control system. You must fully apply your regular brakes first and then press the shift lever button, located on the front of the shift lever, before you can shift from PARK (P) when the ignition key is in RUN. If the vehicle cannot be shifted out of PARK (P), ease pressure on the shift lever by pushing it all the way into PARK (P) as you maintain brake application. Then press the shift lever button and move the shift lever into another gear. See Shifting Out of Park .

REVERSE (R): Use this gear to back up.

Notice: Shifting to REVERSE (R) while your vehicle is moving forward could damage the transaxle. The repairs would not be covered by your warranty. Shift to REVERSE (R) only after your vehicle is stopped.

To rock the vehicle back and forth to get out of snow, ice or sand without damaging the transaxle, see If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow .

NEUTRAL (N): In this position, the engine does not connect with the wheels. To restart when the vehicle is already moving, use NEUTRAL (N) only. Also, use NEUTRAL (N) when the vehicle is being towed.

Caution: Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while the engine is running at high speed.

Notice: Shifting out of PARK (P) or NEUTRAL (N) while the engine is running at high speed may damage the transaxle. The repairs would not be covered by your warranty. Be sure the engine is not running at high speeds when shifting your vehicle.

DRIVE (D): This position is for normal driving. It provides the best fuel economy for your vehicle. If the vehicle needs more power for passing, and it is:

    • Going less than 35 mph (55 km/h), push the accelerator pedal about halfway down.
    • Going about 35 mph (55 km/h) or more, push the accelerator pedal all the way down.
        The vehicle will shift down to the next gear and have more power.

Downshifting the transaxle in slippery road conditions could result in skidding, see Skidding under Loss of Control .

Notice: If your vehicle seems to start up rather slowly or not shift gears when you go faster, and you continue to drive your vehicle that way, you could damage the transaxle. Have your vehicle serviced right away. You can drive in SECOND (2) when you are driving less than 35 mph (55 km/h) and DRIVE (D) for higher speeds until then.

THIRD (3): This position is also used for normal driving. However, it reduces vehicle speed more than DRIVE (D) without using your brakes. You might choose THIRD (3) instead of DRIVE (D) when driving on hilly, winding roads, when towing a trailer, so there is less shifting between gears, when going down a steep hill and when driving on non-highway scenarios (i.e. city streets etc.).

SECOND (2): This position reduces vehicle speed even more than THIRD (3) without using your brakes. You can use SECOND (2) on hills. It can help control the vehicle's speed as it goes down steep mountain roads, but then you would also want to use the brakes off and on.

Notice: Driving in SECOND (2) for more than 25 miles (40 km) or at speeds over 55 mph (90 km/h), can cause damage to your engine and/or transaxle. Also, shifting into SECOND (2) at speeds above 65 mph (105 km/h) can cause damage. Drive in DRIVE (D) instead of SECOND (2).

FIRST (1): This position reduces vehicle speed even more than SECOND (2) without using your brakes. It can be used on very steep hills, or in deep snow or mud. If the shift lever is moved to FIRST (1), while the vehicle is moving forward, the transaxle will not shift into first gear until the vehicle is going slowly enough.

Notice: Spinning the tires or holding the vehicle in one place on a hill using only the accelerator pedal may damage the transaxle. If you are stuck, do not spin the tires. When stopping on a hill, use the brakes, or parking brake to hold the vehicle in place.

Performance Shifting with TAP-Shift®

If the vehicle is equipped with the 3800 V6 Supercharged engine or the 5.3L V8 engine, your vehicle may have this feature. It allows you to change gears similar to a manual transaxle.

To fully use this feature, do the following:

  1. The MANUAL (M) position can be selected while the vehicle is moving. The current transaxle position will continue to be displayed on the Driver Information Center (DIC) and Head-Up Display (HUD), if equipped.

  2. Object Number: 1623923  Size: A2
  3. Move the shift lever to the MANUAL (M).

  4. Object Number: 871822  Size: A2
  5. The paddles are located on the steering wheel. They are used to up-shift or down-shift the transaxle.
  6. Push either paddle once to up-shift to the next gear. Pull either paddle once to down-shift to the next gear.
  7. The vehicle will begin moving in first gear upon acceleration. For better control in icy or slippery conditions, the vehicle may start out in SECOND (2), rather than FIRST (1). This will only occur if you have "tapped up" to second gear.


Object Number: 900982  Size: A1

The up-shift light on the instrument panel cluster, or the up-shift symbol on the HUD, if equipped, is given as a prompt to use the TAP-Shift® paddle. .

For more information, see Up-Shift Light

The up-shift light will only appear in the instrument panel cluster if the HUD is off or if the vehicle does not have HUD.

This prompt to up-shift, as needed, will be given throughout acceleration. If up-shifting does not occur when prompted, the vehicle speed will be limited to protect the engine.

The gear position will display on the DIC and HUD, if equipped, when in manual mode.

Pressing the accelerator while driving in the highest gear (FOURTH (4)) between 20 mph (32 km/h) and 50 mph (80 km/h), will make the transaxle automatically downshift. As your speed gets closer to 50 mph (80 km/h), you will need to increase accelerator pedal travel to get the vehicle to downshift. At 50 mph (80 km/h), even with the accelerator fully depressed, the transaxle will always remain in FOURTH (4). The transaxle will also automatically downshift as the vehicle decelerates and comes to a stop.

If a paddle is pushed or pulled and the vehicle cannot respond to a transaxle gear change, a chime will sound. The system will not allow either an up-shift or a down-shift if the vehicle speed is too fast or too slow, nor will it allow a start from THIRD (3) or higher gear.