For 1990-2009 cars only
Harsh Garage Shift from Park to Drive or from Park to Reverse with Transmission Fluid at Cold Ambient Temperatures (Reprogram PCM)
| Subject: | Harsh Garage Shift from PARK to DRIVE or from PARK to REVERSE with Transmission Fluid at Cold Ambient Temperatures (Reprogram PCM) |
| Models: | 2004 Buick Rainier |
| 2004 Chevrolet TrailBlazer, TrailBlazer EXT |
| 2004 GMC Envoy, Envoy XL |
| 2004 Oldsmobile Bravada |
| with 4L60-E Automatic Transmission (RPO M30) |
Built Prior to the Following VIN Breakpoints:
Plant | VIN Breakpoint | Date |
|---|---|---|
Moraine | 42349411 | 09-MAR-04 |
Oklahoma City | 46206327 | 08-MAR-04 |
Condition
Some customers may comment on a harsh garage shift, especially when the transmission fluid is at a low ambient temperature.
Correction
A revised calibration to address this issue is now available.
Reprogram the PCM using the new service calibration, which was available from Techline starting February 23, 2004 on TIS2000 version 2.5 or later.
This calibration is an electronic calibration and is not available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
K5364 | Transmission Control Module (TCM) - Reprogram | 0.4 hr |
Add | Diagnosis Time | 0.0-0.3 hr |
