HVAC Blows Cold Air From IP Vents When Using Remote Start (Replace HVAC Control Module)
| Subject: | HVAC Blows Cold Air From IP Vents When Using Remote Start (Replace HVAC Control Module) |
| Models: | 2005 Buick Allure (Canada Only), LaCrosse |
| 2005 Pontiac Grand Prix |
| with Remote Start (RPO AP3) and Manual HVAC Controls (RPO C67) |
This bulletin is being revised to add the Buick Allure/LaCrosse and update the parts information. Please discard Corporate Bulletin Number 05-01-38-003A (Section 01 -- HVAC).
Condition
Some customers may comment that the HVAC system blows cold air from the instrument panel vents when using the remote start function. This means they are unable to warm-up the vehicle using remote start.
Cause
The cause of this condition may be due to incorrect programming of the processor chip in the HVAC control module.
Correction
Replace the HVAC control module. Refer to the HVAC Control Assembly Replacement procedure in the HVAC System -- Manual sub-section of the Service Manual (SI Document ID 941134).
Parts Information
Part Number | Description | Qty |
|---|---|---|
15298854 | Control Asm-HTR & A/C (C67 w/o KA1 Heated Seats)(Grand Prix) | 1 |
15298855 | Control Asm-HTR & A/C (C67 w/KA1 Heated Seats)(Grand Prix) | 1 |
15785453 | Control Asm-HTR & A/C (with rear window defogger switch)(Allure/LaCrosse) | 1 |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
D0362 | Control Assembly HVAC (Instrument Panel) -- Replace | Use Published Labor Operation Time |
Add | Diagnosis Time | 0.0-0.3 hr |
