2016-2021 Toyota Tacoma Lack of A/C Performance at Idle in High Ambient Temperature T-SB-0093-20 Revision 2

MG

Moderator
Please see T-SB-0093-20 Revision 2 (needed)

Applicability:
2016 - 2021 Tacoma
VDS(s): AZ5CN, BZ5DN, CZ5AN, DZ5BN, EZ5CN, FZ5DN, GZ5AN, HZ5BN, RZ5CN, SZ5AN (Please see this post to determine VDS)
Engine(s): 2GR
Transmission(s): 6AT

REVISION NOTICE:
August 17, 2021 Rev2:
The Warranty Information section has been updated.

January 12, 2021 Rev1:
Applicability has been updated to include 2021 model year Tacoma vehicles. Any previous printed versions of this bulletin should be discarded.

SUPERSESSION NOTICE:
The information contained in this bulletin supersedes Service Bulletin No. T-SB-0063-18.
The Applicability and Warranty Information sections have been updated. Service Bulletin No T-SB-0063-18 is obsolete and any printed versions should be discarded.

Introduction:
Some 2016 – 2021 model year Tacoma vehicles may exhibit a condition where the air conditioning system shuts down and stops blowing cool air during periods of extended engine idle with ambient temperatures greater than 100°F. Follow the Repair Procedure in the 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 date.
Warranty application is limited to occurrence of the specified condition described in this bulletin.

NOTE:
* Repair components are NOT available as a kit.
* ALL parts MUST be ordered separately.
* The quantity amounts listed above are for repairing one vehicle.

Repair Procedure:
1. Does the vehicle A/C system shut OFF while stopped, idling in Drive for an extended period of time during high ambient temperature (100°F+)?
YES — Go to step 3.
NO — Continue to step 2.

2. If unable to duplicate the condition, confirm that the customer complaint is similar to the condition described in step 1. Is the condition similar to the condition described in step 1?
YES — Continue to step 3.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.

3. Replace the old a/c parts with the updated ones listed in the TSB T-SB-0093-20 Revision 1
 
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