A/C - Unpleasant Odors From Dash Vents For First 10 Secs
L-SB-0086-11August 29, 2011
HVAC Odor
Service Category
Vehicle Interior
Section
Heating/Air Conditioning
Market
USA
Applicability
Introduction
Under certain temperature conditions some customers may experience an unpleasant odor coming from the face level HVAC vents during the initial 10 seconds of HVAC system operation. An HVAC Amplifier is now available with updated logic that will direct air away from the face level vents under certain temperature conditions during the first 10 seconds of HVAC operation.
This TSIB does not apply to the following conditions:
^ The unpleasant odor continues after the initial 10 seconds of HVAC system operation
^ The unpleasant odor does not begin immediately after the HVAC system is turned ON
^ The unpleasant odor is present with the HVAC system OFF
Production Change Information
This TSIB applies to the following vehicles:
^ All 2010 vehicles
^ All 2011 vehicles produced BEFORE the VIN break
Parts Information
Warranty Information
Repair Procedure
1. Duplicate the condition by performing the following:
A. Park the vehicle outside.
B. Set the HVAC system to Low Fan Speed and Face Mode.
C. Turn the HVAC system OFF.
D. Turn the vehicle OFF.
E. Let the vehicle sit for at least 2 hours.
F. Turn vehicle ON.
G. Turn ON the HVAC system.
If the unpleasant odor does not start immediately after the HVAC system is turned ON or continues for more than 30 seconds this TSIB does not apply.
2. Remove the A/C Amplifier. Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:
^ 2010 (to 08/2009) / 2010 (from 08/2009) / 2011 RX 350:
Vehicle Interior - Heating/Air Conditioning - "Air Conditioning Amplifier: Removal"
3. Install the updated A/C amplifier. Refer to TIS applicable model and model year Repair Manual:
^ 2010 (to 08/2009) / 2010 (from 08/2009) / 2011 RX 350:
Vehicle Interior - Heating/Air Conditioning - "Air Conditioning Amplifier: Installation"
4. Verify Proper HVAC System Operation