GMC Yukon XL 2000–2006
Common on this vehicle:Air conditioning or heater
issueInsufficient heat from the rear heater in extreme cold (tee coupling replacement)Remove
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Known issuesInsufficient heat from the rear heater in extreme cold (tee coupling replacement)1
Manufacturer communication2000–2001 GMC YUKON XL ・ 2001-05-01
Insufficient heat from the rear heater in extreme cold (bulletin 01-01-38-005)
1Fault
2Finding the cause
Not stated
3Correction
Repair
- The correction is to replace the rear heater tee couplings.
Read the sentences of the record
From the manufacturer’s document
- Applies to：Bulletin 01-01-38-005, insufficient heat from the rear heater during extreme cold weather, lists 2000-2001 Chevrolet and GMC C/K utility models (Suburban, Tahoe, Yukon, Yukon XL) built prior to October, 2000.
- Repair：The correction is to replace the rear heater tee couplings.
Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.
- Remedy
- This review of service bulletins released through mid-April 01-01-38-005; Insufficient Heat From Rear Heater During Extreme Cold Weather (Replace Rear Heater Tee Couplings); 2000-2001 Chevrolet and GMC C/K Utility Models (Suburban, Tahoe, Yukon, Yukon XL) Built Prior to October, 2000 Insufficient Heat From Rear Heater During Extreme Cold Weather (Replace Rear Heater Tee Couplings)