A/C - Blows Warm Air From Vents Using Remote Start
Bulletin No.: 05-01-39-005ADate: October 21, 2005
TECHNICAL
Subject:
A/C Blows Warm Air From Vents When Using Remote Start (Reprogram PCM)
Models:
2005 Pontiac Grand Prix GXP
Built Prior to May 26, 2005
Attention:
Use GMVIS to determine vehicle build date. This bulletin only applies to vehicles built prior to May 26, 2005.
Supercede:
This bulletin is being revised to update the warranty information with a new labor operation number. Please discard Corporate Bulletin Number 05-01-39-005 (Section 01 - HVAC).
Condition
Some customers may comment that the A/C blows warm air from the vents when using the remote start feature. The A/C system will turn on to the last customer setting before key off after the customer enters the vehicle, inserts the ignition key and turns it to the run position.
Cause
The PCM may not be sending the signal to turn on the A/C compressor during the remote start.
Correction
Technicians are to reprogram the PCM with an updated software calibration. This new service calibration was released with TIS satellite data update version 6.0. As always, make sure your Tech 2(R) is updated with the latest software version.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer