How to operate and diagnose the power door lock system?

The power door lock system operates the door lock actuators in each door, with the system consisting of switches, actuators, Body Control Module (BCM), and associated wiring. Diagnosis typically involves checking the wiring connections and actuators for minor faults that can be easily repaired. The system is operated by bi-directional solenoids located in the doors, with lock switches having two positions: Lock and Unlock. These switches send a signal to the BCM, which then sends a signal to the door lock solenoids. It is important to check the circuit protection first, as some vehicles use a combination of circuit breakers and fuses. If no voltage is present at the switches, the wiring between the fuse panel and switches should be checked for shorts and opens. If voltage is present, the switch should be tested for continuity, and if there is no continuity in both switch positions, it should be replaced and check the wiring between the switch and the door lock solenoid. If all but one lock solenoids operate, the trim panel from the affected door should be removed to check for voltage at the solenoid while the lock switch is operated; if the inoperative solenoid is receiving voltage, it should be replaced and if it isn't, an open or short in the wire between the lock solenoid and the relay should be checked. For the keyless entry remote, the battery should be replaced when the transmitter doesn't operate the locks at a distance of ten feet, with the normal range being about 30 feet. To replace the battery, the case halves should be carefully separated using a small screwdriver, and then the three-volt, lithium battery should be replaced before snapping the case halves together.

Genuine Chevrolet Trailblazer Door Lock

Power Door Lock Actuator

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22 Door Locks found

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Chevrolet Trailblazer 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: 13587646, 13509599, 13585478, 13581023
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Rear Door Lock Actuator Kit
Part Number: 25664288
$83.88 MSRP: $125.38
You Save: $41.50 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Actuator Kit,Rear Door Lock; Actuator, Door Jamb Switch, Lock Actuator
- Position: Rear
- Replaces: 16627973, 25664020, 16632015, 16636561, 22144363, 3635350
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Front Side Door Lock
Part Number: 15110507
$208.89 MSRP: $313.71
You Save: $104.82 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock,Front Side Door; Lock
- Position: Front
- Replaces: 15079224, 15076330
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Rear Door Lock Actuator Kit
Part Number: 25664287
$83.30 MSRP: $124.52
You Save: $41.22 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Actuator Kit,Rear Door Lock; Actuator, Door Jamb Switch, Lock Actuator
- Position: Rear
- Replaces: 16636560, 16627972, 22144360, 16624970, 22144362, 3635351, 16632014, 25664019
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer Front Side Door Lock
Part Number: 15110508
$116.12 MSRP: $174.38
You Save: $58.26 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock,Front Side Door; Lock
- Position: Front
- Replaces: 15079225
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Liftgate Lock
Part Number: 15110511
$234.83 MSRP: $352.67
You Save: $117.84 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock,Lift Gate ; Lock, End Gate Lock; Lock, Lock Assembly
- Replaces: 15159269
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Lift Gate Window Latch
Part Number: 15840460
$89.75 MSRP: $134.18
You Save: $44.43 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch,Lift Gate Window; Latch, Window Latch
- Replaces: 15086837, 15132517
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Rear Side Door Lock Assembly
Part Number: 25948724
$160.92 MSRP: $241.66
You Save: $80.74 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock Assembly, Rear Side Door; Lock, Lock Assembly
- Position: Rear
- Replaces: 15076334, 15079228, 15110509
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer Latch Assembly, Front S/D
Part Number: 13527389
$45.86 MSRP: $68.56
You Save: $22.70 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock Actuator
- Position: Front
- Replaced by: 13560676
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer LATCH ASM-L/GATE
Part Number: 13548758
$284.94 MSRP: $427.92
You Save: $142.98 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock Actuator
- Replaces: 13537996, 13508980
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Rear Side Door Lock Assembly
Part Number: 25948725
$163.70 MSRP: $245.85
You Save: $82.15 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock Assembly, Rear Side Door; Lock, Lock Assembly
- Position: Rear
- Replaces: 15110510, 15079229
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer LATCH ASM-RR S/D
Part Number: 13553117
$98.44 MSRP: $147.18
You Save: $48.74 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock Actuator
- Replaced by: 13560690
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer LATCH ASM-RR S/D
Part Number: 13553118
$36.78 MSRP: $54.99
You Save: $18.21 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock Actuator
- Replaced by: 13560691
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer ACTUATOR ASM-L/GATE PWR ASST
Part Number: 42762903
$127.44 MSRP: $229.61
You Save: $102.17 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Lift Cylinder, Lift Motor
- Replaces: 42744248
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Latch Assembly, Front S/D
Part Number: 13535174
$57.26 MSRP: $85.60
You Save: $28.34 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Latch, Lock Actuator
- Position: Front
- Replaced by: 13560703
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Latch Assembly, Front S/D
Part Number: 13535172
$109.06 MSRP: $163.05
You Save: $53.99 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Front
- Replaces: 13527391
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Front Side Door Lock Assembly
Part Number: 15110506
$184.56 MSRP: $249.82
You Save: $65.26 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock Assembly, Front Side Door; Lock
- Position: Front
- Replaces: 15079226
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer Front Side Door Lock Assembly
Part Number: 15110505
$123.70 MSRP: $185.77
You Save: $62.07 (34%)
Product Specifications
- Other Name: Lock Assembly, Front Side Door; Lock
- Position: Front
- Replaces: 15076333, 15079227
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer End Gate Latch Assembly
Part Number: 15778433
Product Specifications
- Other Name: Latch Assembly, End Gate ; Latch, End Gate Lock; Latch, Lock
- Replaces: 15107195, 21998718, 15133750
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer End Gate Latch Assembly
Part Number: 15778434
Product Specifications
- Other Name: Latch Assembly, End Gate ; Latch, End Gate Lock; Latch, Lock
- Replaces: 15133751, 21998719, 15107196
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L

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1-20 of 22 Results

Chevrolet Trailblazer Door Lock

The Door Lock of Chevrolet Trailblazer vehicles plays important function in securing or locking the car doors to prevent any burglar to open the door until the key unlock the door and even to protect the occupants of the vehicle by holding the car doors closed whenever the car is moving. Trailblazer models of locks have gone up from key-operated to power, remote keyless entry, and automatic locking systems. Remote control locking and unlocking of all doors are made possible through the power door locks while the locking and unlocking of the doors with the aid of a key fob is also made possible by the keyless entry system. Also, there are vehicles that come with automatic locking systems that could be activated by gear or speed hence improving on the security in addition to the comfort in the Trailblazer vehicles.

Each OEM Chevrolet Trailblazer Door Lock we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer Door Lock Parts Questions & Experts Answers

Rear Side Door Lock Assembly
25948725
Q: How to operate and diagnose the power door lock system?
A: The power door lock system operates the door lock actuators in each door, with the system consisting of switches, actuators, Body Control Module (BCM), and associated wiring. Diagnosis typically involves checking the wiring connections and actuators for minor faults that can be easily repaired. The system is operated by bi-directional solenoids located in the doors, with lock switches having two positions: Lock and Unlock. These switches send a signal to the BCM, which then sends a signal to the door lock solenoids. It is important to check the circuit protection first, as some vehicles use a combination of circuit breakers and Fuses. If no voltage is present at the switches, the wiring between the fuse panel and switches should be checked for shorts and opens. If voltage is present, the switch should be tested for continuity, and if there is no continuity in both switch positions, it should be replaced and check the wiring between the switch and the door lock solenoid. If all but one lock solenoids operate, the trim panel from the affected door should be removed to check for voltage at the solenoid while the lock switch is operated; if the inoperative solenoid is receiving voltage, it should be replaced and if it isn't, an open or short in the wire between the lock solenoid and the relay should be checked. For the keyless entry remote, the battery should be replaced when the transmitter doesn't operate the locks at a distance of ten feet, with the normal range being about 30 feet. To replace the battery, the case halves should be carefully separated using a small screwdriver, and then the three-volt, lithium battery should be replaced before snapping the case halves together.

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