OE Quality
60-Day Returns

Dorman 931-157 Door Lock Actuator Motor - Front Right
Reliable Door Lock Actuator Motor for Select GM SUVs
The Dorman 931-157 door lock actuator motor is designed specifically for certain Buick, Chevrolet, GMC, Oldsmobile, and Saab models. This replacement part ensures proper locking and unlocking functionality for your vehicle's doors, restoring convenience and security.
- Constructed with durable metal and plastic materials for long-lasting performance
- Features a male blade terminal type for secure electrical connection
- Includes one integrated latch actuator for direct replacement
- Designed for specific fitment on Buick, Chevrolet, GMC, Oldsmobile, and Saab SUVs
- Does not include mounting hardware; designed for straightforward installation
Durable Materials and Precise Fitment
The Dorman 931-157 door lock actuator motor combines metal and plastic components to balance strength and functionality. Its metal parts provide structural integrity, while the plastic elements help reduce weight and resist corrosion. The male blade terminal ensures a reliable electrical connection, critical for consistent actuator operation. This part is engineered for specific fitment, compatible with models such as the Buick Rainier, Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy series, Oldsmobile Bravada, and Saab 9-7x, ensuring a precise match to your vehicle's original equipment.
Common Applications and Problem Resolution
This door lock actuator motor is used to control the locking mechanism within the vehicle's door assembly. It addresses several common issues, including:
- Failure of door locks to engage or disengage properly
- Intermittent or non-responsive power door lock operation
- Unusual noises or grinding sounds when locking or unlocking doors
- Inability to lock or unlock doors remotely or via interior switches
- Electrical connection problems due to worn or damaged terminals
Installation Notes and Tips
Installation of the Dorman 931-157 door lock actuator motor requires removal of the door panel and careful disconnection of the existing actuator. Since mounting hardware is not included, retain original screws and clips for reassembly. Ensure the male blade terminal is securely connected to the vehicle wiring harness to avoid electrical issues. It is recommended to test the actuator function before reattaching the door panel to confirm proper operation.
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 931-157 door lock actuator motor undergoes quality inspections to ensure fit and function. This part is backed by Dorman's limited warranty, covering defects in material and workmanship under normal use conditions.
| Brand | Dorman |
|---|---|
| Part Number | 931-157 |
| Connector Gender | Male |
| Material | Metal |
| Material | Plastic |
| Mounting Hardware Included | No |
| Package Contents | 1 Integrated Latch Actuator |
| Terminal Type | Blade |
| Universal Or Specific Fit | Specific |
This part fits 40 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | Front Right | Latch and Actuator Assembly with Anti-Theft Package |
| 2009 | GMC | Envoy | Front Right | Latch and Actuator Assembly with Anti-Theft Package |
| 2009 | Saab | 9-7x | Front Right | |
| 2008 | Chevrolet | Trailblazer | Front Right | Latch and Actuator Assembly with Anti-Theft Package |
| 2008 | GMC | Envoy | Front Right | Latch and Actuator Assembly with Anti-Theft Package |
| 2008 | Saab | 9-7x | Front Right | |
| 2007 | Buick | Rainier | Front Right | w/Keyless Entry |
| 2007 | Chevrolet | Trailblazer | Front Right | w/Keyless Entry |
| 2007 | GMC | Envoy | Front Right | w/Keyless Entry |
| 2007 | Saab | 9-7x | Front Right | |
| 2006 | Buick | Rainier | Front Right | w/Keyless Entry |
| 2006 | Chevrolet | Trailblazer | Front Right | w/Keyless Entry |
| 2006 | Chevrolet | Trailblazer EXT | Front Right | w/Keyless Entry |
| 2006 | GMC | Envoy | Front Right | w/Keyless Entry |
| 2006 | GMC | Envoy XL | Front Right | w/Keyless Entry |
| 2006 | Saab | 9-7x | Front Right | |
| 2005 | Buick | Rainier | Front Right | w/Keyless Entry |
| 2005 | Chevrolet | Trailblazer | Front Right | w/Keyless Entry |
| 2005 | Chevrolet | Trailblazer EXT | Front Right | w/Keyless Entry |
| 2005 | GMC | Envoy | Front Right | w/Keyless Entry |
| 2005 | GMC | Envoy XL | Front Right | w/Keyless Entry |
| 2005 | GMC | Envoy XUV | Front Right | w/Keyless Entry |
| 2005 | Saab | 9-7x | Front Right | |
| 2004 | Buick | Rainier | Front Right | w/Keyless Entry |
| 2004 | Chevrolet | Trailblazer | Front Right | w/Keyless Entry |
| 2004 | Chevrolet | Trailblazer EXT | Front Right | w/Keyless Entry |
| 2004 | GMC | Envoy | Front Right | w/Keyless Entry |
| 2004 | GMC | Envoy XL | Front Right | w/Keyless Entry |
| 2004 | GMC | Envoy XUV | Front Right | w/Keyless Entry |
| 2004 | Oldsmobile | Bravada | Front Right | w/Keyless Entry |
| 2003 | Chevrolet | Trailblazer | Front Right | w/Keyless Entry |
| 2003 | Chevrolet | Trailblazer EXT | Front Right | w/Keyless Entry |
| 2003 | GMC | Envoy | Front Right | w/Keyless Entry |
| 2003 | GMC | Envoy XL | Front Right | w/Keyless Entry |
| 2003 | Oldsmobile | Bravada | Front Right | w/Keyless Entry |
| 2002 | Chevrolet | Trailblazer | Front Right | w/Keyless Entry |
| 2002 | Chevrolet | Trailblazer EXT | Front Right | w/Keyless Entry |
| 2002 | GMC | Envoy | Front Right | w/Keyless Entry |
| 2002 | GMC | Envoy XL | Front Right | w/Keyless Entry |
| 2002 | Oldsmobile | Bravada | Front Right | w/Keyless Entry |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.