B2725 on GMC
Transfer Case Mode/Range Selector Switch Circuit
B2725 on GMC vehicles indicates transfer case mode/range selector switch circuit. Au7o has documented this code across 1 GMC model — most commonly on Yukon XL. B2725 is most commonly defined on GM 4WD vehicles as a fault in the transfer case (4WD) mode/range selector switch circuit. The transfer case control module or BCM monitors the dash-mounted 4WD selector switch and sets this code when it reads an invalid or out-of-range signal. It typically triggers a 'Service 4WD' message and can leave the 4WD system stuck in its current mode until repaired. Typical repair costs on GMC range from $300 to $800, depending on the specific model and root cause.
Common Causes of B2725
- •Faulty 4WD/transfer case selector switch (most common)
- •Worn or corroded switch internal contacts
- •Damaged wiring between switch and module
- •Corroded or loose connector at the switch
- •Open or shorted circuit
- •Transfer case control module fault
B2725 on GMC by Model
GMC Yukon XL(1 issue)
- Steering Column Lock Actuator Click and Binding2015-2020
The electronic steering column lock (ESCL) actuator in 2015-2020 Yukon XL models develops a clicking, popping, or grinding noise when turning the steering wheel, particularly at startup. In some cases, the ESCL prevents the vehicle from starting entirely, displaying a "Steering Column Lock" message. GM issued TSB 16-NA-012 acknowledging the issue. The ESCL motor gear teeth strip or the position sensor misreads, causing the lock to partially engage or fail to release.
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View B2725 across all makes →Frequently Asked Questions
What does B2725 mean on GMC?▼
B2725 stands for "Transfer Case Mode/Range Selector Switch Circuit." B2725 is most commonly defined on GM 4WD vehicles as a fault in the transfer case (4WD) mode/range selector switch circuit. The transfer case control module or BCM monitors the dash-mounted 4WD selector switch and sets this code when it reads an invalid or out-of-range signal. It typically triggers a 'Service 4WD' message and can leave the 4WD system stuck in its current mode until repaired. On GMC specifically, this code is documented across 1 model.
What causes B2725 on GMC vehicles?▼
Common causes on GMC: Faulty 4WD/transfer case selector switch (most common), Worn or corroded switch internal contacts, Damaged wiring between switch and module, Corroded or loose connector at the switch, Open or shorted circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B2725 on a GMC?▼
Repair costs on GMC range from $300 to $800, depending on the specific model and root cause.
Which GMC models have B2725 documented?▼
Au7o has documented B2725 on 1 GMC model: Yukon XL.