Product Details
- Brand: Curt
- Model: 13576 55384 57187 58303-CH323
- Includes: Class 3 Trailer Tow Hitch, Replacement OE 4-Way Flat Socket T's into USCAR), 4-Way to 5-Way Flat Adapter for Boat Trailer Surge Brakes, Connector Mounting Bracket for 5-Way Flat
Compatibility Chart
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For 2023-2024 Chevy Colorado Trailer Hitch + Wiring 5 Pin Fits Models w/ Existing USCAR 7-way Curt 13576 2 inch Tow Receiver Install Notes
Installation Instructions for Chevrolet Colorado, GMC Canyon
Part Numbers:
- 13576
Tools Required:
- Ratchet
- Torque wrench
- Socket (15mm, 11/16", 21mm)
- Socket extension (9")
- Wire brush
Step 1: Remove the spare tire
- Use the vehicle's service tools to temporarily remove the spare tire.
- Loosen the spare tire support bracket by removing the bolt attached to the rear crossmember with a 15mm socket.
- Loosen the bolt on the other end of the support bracket and swivel it out of the way.
Step 2: Disconnect electrical connectors
- Disconnect the guide tube for the spare tire lowering system from the rear crossmember.
- Disconnect all electrical connectors to the rear bumper, including:
- Two electrical connectors near the driver-side frame rail.
- The fastener from the crossmember.
- The USCAR plug.
- Two connectors near the license plate.
Step 3: Remove the bumper
- Remove two bolts securing the crossmember and bumper to the outside of each frame rail.
- Remove the two nuts securing the bumper to the crossmember at the rear of the vehicle.
- Carefully remove the bumper and set it aside for reinstallation.
Step 4: Remove the factory crossmember
- Remove the four bolts from the bottom of the frame rails.
- Remove the factory crossmember.
- Clean the weldnuts as needed using a wire brush.
Step 5: Install the hitch
- Raise the hitch into position.
- Loosely secure it using the four bolts removed in Step 4.
Step 6: Reinstall the bumper
- Reinstall the rear bumper and secure it using the hardware removed in Step 3.
- Torque all M14 bolts to 126 ft-lbs.
Step 7: Reconnect components
- Reconnect all electrical connectors and the guide tube disconnected in Step 2.
- Attach the spare tire support bracket to the hitch using the included 7/16" hardware.
- Tighten the remaining bolt on the spare tire support bracket.
- Reinstall the spare tire.
Hardware List:
- (1) Trailer hitch
- (1) Carriage bolt, 7/16"
- (1) Serrated-flange nut, 7/16"
Safety Notes:
- Always wear safety glasses during installation.
- Never exceed the vehicle manufacturer's recommended towing capacity.
- Periodically inspect the hitch to ensure all mounting hardware is tight and secure.
Specifications:
- Gross Trailer Weight (GTW): 8,000 lbs.
- Tongue Weight (TW): 800 lbs.
- Weight Distribution (WD): 10,000 lbs.
- Weight Distribution Tongue Weight (WDTW): 1,000 lbs.
- Torque Specification: 126 ft-lbs.
Installation Instructions
Tools Required:
- Ratchet
- Torque wrench
- Socket (15mm, 11/16", 21mm)
- Socket extension (9")
- Wire brush
Step 1: Remove the spare tire
- Use the vehicle's service tools to temporarily remove the spare tire.
- Loosen the spare tire support bracket by removing the bolt attached to the rear crossmember with a 15mm socket.
- Loosen the bolt on the other end of the support bracket and swivel it out of the way.
Step 2: Disconnect electrical connectors
- Disconnect the guide tube for the spare tire lowering system from the rear crossmember.
- Disconnect all electrical connectors to the rear bumper, including:
- Two electrical connectors near the driver-side frame rail.
- The fastener from the crossmember.
- The USCAR plug.
- Two connectors near the license plate.
Step 3: Remove the bumper
- Remove two bolts securing the crossmember and bumper to the outside of each frame rail.
- Remove the two nuts securing the bumper to the crossmember at the rear of the vehicle.
- Carefully remove the bumper and set it aside for reinstallation.
Step 4: Remove the factory crossmember
- Remove the four bolts from the bottom of the frame rails.
- Remove the factory crossmember.
- Clean the weldnuts as needed using a wire brush.
Step 5: Install the hitch
- Raise the hitch into position.
- Loosely secure it using the four bolts removed in Step 4.
Step 6: Reinstall the bumper
- Reinstall the rear bumper and secure it using the hardware removed in Step 3.
- Torque all M14 bolts to 126 ft-lbs.
Step 7: Reconnect components
- Reconnect all electrical connectors and the guide tube disconnected in Step 2.
- Attach the spare tire support bracket to the hitch using the included 7/16" hardware.
- Tighten the remaining bolt on the spare tire support bracket.
- Reinstall the spare tire.
Hardware List:
- (1) Trailer hitch
- (1) Carriage bolt, 7/16"
- (1) Serrated-flange nut, 7/16"
Safety Notes:
- Always wear safety glasses during installation.
- Never exceed the vehicle manufacturer's recommended towing capacity.
- Periodically inspect the hitch to ensure all mounting hardware is tight and secure.
Specifications:
- Gross Trailer Weight (GTW): 8,000 lbs.
- Tongue Weight (TW): 800 lbs.
- Weight Distribution (WD): 10,000 lbs.
- Weight Distribution Tongue Weight (WDTW): 1,000 lbs.
- Torque Specification: 126 ft-lbs.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
For Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
Installation Instructions for Various Vehicle Models
Part Number:
- 55384
Applicable Models:
- Buick Enclave
- Buick Rainier
- Cadillac Escalade (including ESV, EXT, Hybrid)
- Chevrolet Avalanche
- Chevrolet Colorado
- Chevrolet Express
- Chevrolet Silverado (including Hybrid)
- Chevrolet Suburban
- Chevrolet Tahoe (including Hybrid)
- Chevrolet Trailblazer
- Chevrolet Traverse
- Chrysler Aspen
- Dodge RAM (1500, 2500, 3500)
- GMC Acadia
- GMC Canyon
- GMC Envoy
- GMC Sierra
- GMC Yukon (including Denali, XL, XL Denali)
- Hummer H2, H3, H3T
- Infiniti QX56
- Isuzu Ascender
- Kia Borrego
- Nissan Pathfinder Armada
- Nissan Titan
- Oldsmobile Bravada
- Saab 9-7X
- Saturn Outlook
Wiring Access Locations:
- Pickup Trucks (T):
- T3: Behind driver's side rear bumper
- T4: Behind center of rear bumper fascia
- SUVs, Mini & Full-Sized Vans (S):
- S3: Behind driver's side rear access panel
- S4: Behind passenger's side rear access panel
- S5: Behind driver's side rear bumper
- S6: Behind center of rear bumper
- S7: Behind passenger's side rear bumper
Step-by-Step Instructions:
For Vehicles Without a Factory 7-Way:
-
Access the Vehicle's Wiring Harness Connectors:
- Locate the connectors behind the driver's side rear bumper at position T3 as shown in the 'Wiring Location Guide'.
-
Disconnect the Negative Battery Terminal:
- Refer to the vehicle's owner's manual to locate the battery.
- Disconnect the negative battery terminal and secure it away from the battery during installation.
-
Prepare the Connector Housing:
- Remove and retain the protective cap from the housing.
- Ensure the mating surface is clean and free of rust or dirt.
-
Insert the T-Connector:
- Connect the T-connector housing into the vehicle's housing.
- Ensure connectors are fully inserted with locking tabs in place.
-
Secure the Protective Cap:
- Place the previously removed protective cap onto the remaining plug end.
-
Reconnect the Battery:
- Reconnect the negative battery terminal.
For Vehicles With a Factory 7-Way:
-
Locate the Factory 7-Way Connector:
- Find the factory 7-way attached to the hitch, behind the center of the rear bumper at position T4 as shown in the 'Wiring Location Guide'.
-
Disconnect the Negative Battery Terminal:
- Refer to the vehicle's owner's manual to locate the battery.
- Disconnect the negative battery terminal and secure it away from the battery during installation.
-
Separate the Factory Socket:
- Disconnect the factory socket from the 7-way connector.
-
Insert the T-Connector:
- Connect the T-connector between the factory housing and the 7-way housing.
- Ensure connectors are fully inserted with locking tabs in place.
-
Reconnect the Battery:
- Reconnect the negative battery terminal.
Safety Notes:
- Warning: Do not exceed the product rating or the tow vehicle's lamp load rating, whichever is lower. Exceeding these ratings can lead to loss of warranty, overheating, and potential fire hazards.
Note: After installation, test the function by connecting a test light or properly wired trailer. Refer to the vehicle owner's manual or contact the vehicle manufacturer for more information.
Installation Instructions for Various Vehicle Models
Part Number:
- 55384
Applicable Models:
- Buick Enclave
- Buick Rainier
- Cadillac Escalade (including ESV, EXT, Hybrid)
- Chevrolet Avalanche
- Chevrolet Colorado
- Chevrolet Express
- Chevrolet Silverado (including Hybrid)
- Chevrolet Suburban
- Chevrolet Tahoe (including Hybrid)
- Chevrolet Trailblazer
- Chevrolet Traverse
- Chrysler Aspen
- Dodge RAM (1500, 2500, 3500)
- GMC Acadia
- GMC Canyon
- GMC Envoy
- GMC Sierra
- GMC Yukon (including Denali, XL, XL Denali)
- Hummer H2, H3, H3T
- Infiniti QX56
- Isuzu Ascender
- Kia Borrego
- Nissan Pathfinder Armada
- Nissan Titan
- Oldsmobile Bravada
- Saab 9-7X
- Saturn Outlook
Wiring Access Locations:
- Pickup Trucks (T):
- T3: Behind driver's side rear bumper
- T4: Behind center of rear bumper fascia
- SUVs, Mini & Full-Sized Vans (S):
- S3: Behind driver's side rear access panel
- S4: Behind passenger's side rear access panel
- S5: Behind driver's side rear bumper
- S6: Behind center of rear bumper
- S7: Behind passenger's side rear bumper
Step-by-Step Instructions:
For Vehicles Without a Factory 7-Way:
-
Access the Vehicle's Wiring Harness Connectors:
- Locate the connectors behind the driver's side rear bumper at position T3 as shown in the 'Wiring Location Guide'.
-
Disconnect the Negative Battery Terminal:
- Refer to the vehicle's owner's manual to locate the battery.
- Disconnect the negative battery terminal and secure it away from the battery during installation.
-
Prepare the Connector Housing:
- Remove and retain the protective cap from the housing.
- Ensure the mating surface is clean and free of rust or dirt.
-
Insert the T-Connector:
- Connect the T-connector housing into the vehicle's housing.
- Ensure connectors are fully inserted with locking tabs in place.
-
Secure the Protective Cap:
- Place the previously removed protective cap onto the remaining plug end.
-
Reconnect the Battery:
- Reconnect the negative battery terminal.
For Vehicles With a Factory 7-Way:
-
Locate the Factory 7-Way Connector:
- Find the factory 7-way attached to the hitch, behind the center of the rear bumper at position T4 as shown in the 'Wiring Location Guide'.
-
Disconnect the Negative Battery Terminal:
- Refer to the vehicle's owner's manual to locate the battery.
- Disconnect the negative battery terminal and secure it away from the battery during installation.
-
Separate the Factory Socket:
- Disconnect the factory socket from the 7-way connector.
-
Insert the T-Connector:
- Connect the T-connector between the factory housing and the 7-way housing.
- Ensure connectors are fully inserted with locking tabs in place.
-
Reconnect the Battery:
- Reconnect the negative battery terminal.
Safety Notes:
- Warning: Do not exceed the product rating or the tow vehicle's lamp load rating, whichever is lower. Exceeding these ratings can lead to loss of warranty, overheating, and potential fire hazards.
Additional Information:
- Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
- For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty:
- Warranty Duration: [Insert warranty period]
- Coverage Details: [Insert coverage details]
- For complete warranty information, please download the full installation PDF.
Note: After installation, test the function by connecting a test light or properly wired trailer. Refer to the vehicle owner's manual or contact the vehicle manufacturer for more information.
Installation Instructions for 4-Way to 5-Way Adapter
Tools Required:
- Wire Crimpers
- Wire Cutters
- Test Light or Multimeter
- Quick Splice Connector (provided)
- Additional Wire (if needed for reverse light connection)
- Cable Ties (optional)
- Silicone Sealant (optional)
Overview:
This adapter converts your 4-way flat trailer connector to a 5-way flat, adding reverse light functionality for trailers with reverse lights or surge brake lockout systems.
Step-by-Step Instructions:
1. Mount the Adapter:
- Select a suitable mounting location near the hitch and securely install the adapter.
2. Connect the 4-Way Plug:
- Plug the 4-way flat connector from the adapter into the existing 4-way flat connector on your vehicle.
- This connection provides tail lights, left turn, right turn, and brake light functions.
3. Ground the Adapter:
- Locate a solid ground point near the adapter, such as the vehicle frame.
- Clean the surface to ensure proper contact.
- Secure the white ground wire from the adapter using the provided eyelet and a self-tapping screw.
4. Connect the Reverse Light Circuit:
-
Locate the Reverse Light Wire:
- Identify the reverse light circuit on your vehicle, typically found near the tail light assembly.
- Use the provided quick splice connector to attach the adapter's blue wire to the vehicle’s reverse light circuit.
-
Extend the Blue Wire (If Needed):
- If the adapter's blue wire is too short, splice in additional wire to reach the reverse light circuit.
- Route the wire safely, avoiding hot or moving parts, and secure it with cable ties.
-
Seal the Connection:
- If routing the wire through a grommet, seal any openings with silicone to prevent water ingress.
5. Secure the Wiring:
- Use cable ties to secure all wires and prevent them from hanging loosely or contacting sharp edges.
6. Test the Adapter:
- Plug the adapter into your trailer’s 5-way flat connector or use a test light to verify functionality:
- Brown Wire: Tail lights (solid when headlights are on).
- Yellow Wire: Left turn signal and brake light (flashes with turn signal).
- Green Wire: Right turn signal and brake light (flashes with turn signal).
- Blue Wire: Reverse light (active when the vehicle is in reverse).
- White Wire: Ground (continuity with the vehicle's ground).
Notes:
- This adapter is designed specifically for trailers requiring a reverse light or surge brake lockout circuit.
- Ensure all connections are secure to avoid intermittent functionality.
- Always follow safety guidelines during installation and verify all circuits before use.
Warning: Improper installation or overloaded circuits can result in damage or fire. Test all connections carefully.
Installation Instructions for 4-Way to 5-Way Adapter
Tools Required:
- Wire Crimpers
- Wire Cutters
- Test Light or Multimeter
- Quick Splice Connector (provided)
- Additional Wire (if needed for reverse light connection)
- Cable Ties (optional)
- Silicone Sealant (optional)
Overview:
This adapter converts your 4-way flat trailer connector to a 5-way flat, adding reverse light functionality for trailers with reverse lights or surge brake lockout systems.
Step-by-Step Instructions:
1. Mount the Adapter:
- Select a suitable mounting location near the hitch and securely install the adapter.
2. Connect the 4-Way Plug:
- Plug the 4-way flat connector from the adapter into the existing 4-way flat connector on your vehicle.
- This connection provides tail lights, left turn, right turn, and brake light functions.
3. Ground the Adapter:
- Locate a solid ground point near the adapter, such as the vehicle frame.
- Clean the surface to ensure proper contact.
- Secure the white ground wire from the adapter using the provided eyelet and a self-tapping screw.
4. Connect the Reverse Light Circuit:
-
Locate the Reverse Light Wire:
- Identify the reverse light circuit on your vehicle, typically found near the tail light assembly.
- Use the provided quick splice connector to attach the adapter's blue wire to the vehicle’s reverse light circuit.
-
Extend the Blue Wire (If Needed):
- If the adapter's blue wire is too short, splice in additional wire to reach the reverse light circuit.
- Route the wire safely, avoiding hot or moving parts, and secure it with cable ties.
-
Seal the Connection:
- If routing the wire through a grommet, seal any openings with silicone to prevent water ingress.
5. Secure the Wiring:
- Use cable ties to secure all wires and prevent them from hanging loosely or contacting sharp edges.
6. Test the Adapter:
- Plug the adapter into your trailer’s 5-way flat connector or use a test light to verify functionality:
- Brown Wire: Tail lights (solid when headlights are on).
- Yellow Wire: Left turn signal and brake light (flashes with turn signal).
- Green Wire: Right turn signal and brake light (flashes with turn signal).
- Blue Wire: Reverse light (active when the vehicle is in reverse).
- White Wire: Ground (continuity with the vehicle's ground).
Notes:
- This adapter is designed specifically for trailers requiring a reverse light or surge brake lockout circuit.
- Ensure all connections are secure to avoid intermittent functionality.
- Always follow safety guidelines during installation and verify all circuits before use.
Warning: Improper installation or overloaded circuits can result in damage or fire. Test all connections carefully.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.