How Do You Troubleshoot and Diagnose Malfunctions in the Body Control Module (BCM),Door Lock and Associated Systems?

Among other things, these models have a Body Control Module (BCM) which controls stuff like door locks, power windows, ignition lock and security system, interior lights, Daytime Running Lights system, horn, windshield wipers, heating/air conditioning system, and power mirrors. For this system if there is any malfunction the troubleshooting as well as diagnosis should be done by a dealership service department or qualified automotive repair facility. The power door lock system works through switches, actuators and the BCM and can usually be diagnosed and repaired by checking wiring connections and actuators. A signal from the lock switches is sent to the BCM which then sends a signal to the door lock solenoids. Dealer service department should be consulted if troubleshooting steps do not identify the issue. Always check circuit protection first, followed by checking for voltage at the switches and testing switch continuity. Check wiring between the switch and door lock solenoid if necessary; if a solenoid is not receiving voltage check for an open or short in wire between the solenoid and relay. For power door lock system communication issues consult a dealer or qualified shop with the proper scan tool to retrieve trouble codes from the BCM. The keyless entry system consists of a remote control transmitter that sends a coded infrared signal to a receiver which operates the door lock system. When it doesn't operate locks at 10 feet range but normal range shall be about 30 feet replace battery in transmitter. To replace battery carefully separate case halves using a coin pry out battery snap case halves together. Programming replacement transmitters requires a specialized scan tool so take vehicle and transmitters to dealer service department or qualified repair shop for programming.

Genuine GMC Terrain Door Lock

Power Door Lock Actuator

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17 Door Locks found

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GMC Terrain Lift Gate Latch Assembly
Part Number: 84243380
$271.75 MSRP: $404.46
You Save: $132.71 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Latch Assembly, Lift Gate; Actuator, Latch, Lock, Lower Cover
- Replaces: 13503467, 13502698, 13581405, 13501872, 15779874, 15839037
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain Latch Assembly, L/Gate
Part Number: 13524683
$130.85 MSRP: $194.76
You Save: $63.91 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Actuator, Latch, Lock, Lock Actuator
- Replaces: 13581023, 13509599, 13585478, 13587646
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L
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GMC Terrain Rear Side Door Lock
Part Number: 13579551
$143.06 MSRP: $214.84
You Save: $71.78 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Lock,Rear Side Door; Latch, Lock, Lock Actuator
- Position: Rear
- Replaces: 13503783, 13578018, 13503807
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain Latch Assembly, L/Gate
Part Number: 13537955
$136.80 MSRP: $205.44
You Save: $68.64 (34%)
ADD TO CART
Product Specifications
- Other Name: Actuator, Latch, Lock, Lock Actuator
- Replaced by: 13542450
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L
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GMC Terrain Lift Gate Latch Assembly
Part Number: 13584872
$171.00 MSRP: $256.80
You Save: $85.80 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Latch Assembly, Lift Gate
- Replaces: 13581406, 13501871, 15858590, 13502697, 15780269, 15887967
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain Front Side Door Lock Assembly
Part Number: 13579522
$137.61 MSRP: $206.66
You Save: $69.05 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Lock Assembly, Front Side Door; Latch, Lock, Lock Actuator, Lock Assembly
- Position: Front
- Replaces: 13577983, 13503819, 13503801
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain Front Side Door Lock Assembly
Part Number: 13579523
$137.78 MSRP: $206.92
You Save: $69.14 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Lock Assembly, Front Side Door; Latch, Lock, Lock Actuator, Lock Assembly
- Position: Front
- Replaces: 13577984, 13503814, 13503802
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain Latch Assembly, Rear S/D
Part Number: 13533636
$121.68 MSRP: $182.74
You Save: $61.06 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock, Lock Actuator
- Position: Rear
- Replaced by: 13546554
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L
View related parts
GMC Terrain Front Side Door Latch Assembly
Part Number: 13579564
$137.91 MSRP: $207.11
You Save: $69.20 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch Assembly, Front Side Door; Latch, Lock
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.6L
View related parts
GMC Terrain Rear Side Door Latch
Part Number: 13579552
$192.49 MSRP: $289.07
You Save: $96.58 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch,Rear Side Door ; Lock; Latch, Lock, Lock Actuator
- Position: Rear
- Replaces: 13503808, 13503784, 13578019
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L
View related parts
GMC Terrain Rear Side Door Latch (Man Child Lock)
Part Number: 13579557
$137.70 MSRP: $206.79
You Save: $69.09 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch,Rear Side Door(Man Child Lock); Latch, Lock, Lock Actuator
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.6L
View related parts
GMC Terrain Actuator Assembly, L/Gate Pwr Asst
Part Number: 84800899
$88.14 MSRP: $249.88
You Save: $161.74 (65%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Actuator, Lift Cylinder
- Replaces: 84781790, 84569355, 84178754, 84470044
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L
View related parts
GMC Terrain Lift Gate Power Assisted Actuator ASSEMBLY (Lh)
Part Number: 23289161
$167.34 MSRP: $315.74
You Save: $148.40 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Actuator Assembly, Lift Gate Power Asst (Lh); Actuator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2017 GMC Terrain | SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.6L
View related parts
GMC Terrain Latch Assembly, Front S/D
Part Number: 13533614
$111.38 MSRP: $172.30
You Save: $60.92 (36%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch
- Position: Front
- Replaced by: 13546503
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L
View related parts
GMC Terrain Latch Assembly, Rear S/D
Part Number: 13533634
$122.28 MSRP: $183.64
You Save: $61.36 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch
- Position: Rear
- Replaced by: 13546550
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L
View related parts
GMC Terrain Rear Side Door Latch (Man Child Lock)
Part Number: 13579566
$122.62 MSRP: $184.15
You Save: $61.53 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch,Rear Side Door(Man Child Lock); Latch, Lock, Lock Actuator
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L, 6 Cyl 3.6L
View related parts
GMC Terrain Latch Assembly, Front S/D
Part Number: 13533619
$90.40 MSRP: $134.54
You Save: $44.14 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock Actuator
- Position: Front
- Replaced by: 13546475
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 1.5L, 4 Cyl 1.6L Diesel, 4 Cyl 2.0L

GMC Terrain Door Lock Parts Questions & Experts Answers

Rear Side Door Latch (Man Child Lock)
13579566
Q: How Do You Troubleshoot and Diagnose Malfunctions in the Body Control Module (BCM),Door Lock and Associated Systems?
A: Among other things, these models have a Body Control Module (BCM) which controls stuff like door locks, power windows, ignition lock and security system, interior lights, Daytime Running Lights system, Horn, windshield wipers, heating/air conditioning system, and power mirrors. For this system if there is any malfunction the troubleshooting as well as diagnosis should be done by a dealership service department or qualified automotive repair facility. The power door lock system works through switches, actuators and the BCM and can usually be diagnosed and repaired by checking wiring connections and actuators. A signal from the lock switches is sent to the BCM which then sends a signal to the door lock solenoids. Dealer service department should be consulted if troubleshooting steps do not identify the issue. Always check circuit protection first, followed by checking for voltage at the switches and testing switch continuity. Check wiring between the switch and door lock solenoid if necessary; if a solenoid is not receiving voltage check for an open or short in wire between the solenoid and Relay. For power door lock system communication issues consult a dealer or qualified shop with the proper scan tool to retrieve trouble codes from the BCM. The keyless entry system consists of a remote control transmitter that sends a coded infrared signal to a receiver which operates the door lock system. When it doesn't operate locks at 10 feet range but normal range shall be about 30 feet replace battery in transmitter. To replace battery carefully separate case halves using a coin pry out battery snap case halves together. Programming replacement transmitters requires a specialized scan tool so take vehicle and transmitters to dealer service department or qualified repair shop for programming.

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