MG

Moderator
Please see T-SB-0007-22

Applicability:
2020-2021 Toyota RAV4, RAV4 HV
WMI(s): 2T3, 4T3
(Please see this Post to determine VDS and WMI's)

Introduction:
Some 2020 – 2021 model year TMMC and TMMK built RAV4 and RAV4 Hybrid vehicles may exhibit damp carpeting in the front floor area. This may be due a condition in which the inside of the HVAC drain cooler hose is obstructed with plastic. Follow the Repair Procedure in this bulletin to address this condition.

APPLICABLE WARRANTY:
This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service dat
Warranty application is limited to occurrence of the specified condition described in this bulletin.

Repair Procedure:
1. Confirm the condition exists. Is there condensation accumulating in the HVAC box leaking into the vehicle interior on the passenger side floorboard?
YES — Continue to step 2.
NO — This bulletin does not apply. Continue diagnosis using the applicable Repair Manual.

2. Remove the HVAC drain cooler hose.
A. Detach the clamp.
B. Disconnect the HVAC drain cooler hose from the cooler unit drain hose grommet.
C. Remove the HVAC drain cooler hose from the HVAC box


3. Loosely cover the end of the HVAC drain cooler hose with a plastic bag, leaving room for air to inflate the bag. Blow compressed air at no more than 20 psi (140 kPa) through the drain tube.

Did non-plastic debris come out of the HVAC drain cooler hose?
YES — This bulletin does NOT apply. Reference T-SB-0080-19 HVAC Evaporator Drain Hose Clogged Due to Insect Intrusion or continue diagnosis using the applicable Repair Manual.
NO — Continue to step 4.

4. Install the NEW HVAC drain cooler hose.
A. Align the hose notch with the rib as shown and install the NEW HVAC drain cooler hose.
B. Connect the HVAC drain cooler hose to the cooler unit drain hose grommet.
C. Attach the clamp

5. Confirm the condition no longer exists.

6. If necessary, reference T-SB-0094-21 Odor Remediation After Water Intrusion.
 
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