Product Details
- Brand: Curt
- Model: 13422 51352 55774 45042 51160-CH255
- Includes: Class 3 Trailer Tow Hitch, Dual-Output 7 & 4-Way Connector Plugs into USCAR, Trailer Brake Controller Harness, Loaded Ball Mount with 2-5/16" Ball 2" Shank, Assure Proportional Trailer Brake Controller with Dynamic Screen
Compatibility Chart
Description
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For 2003-2006 Chevy Avalanche Tow Package Camp n' Field Trailer Hitch + Brake Controller Curt Assure 51160 Proportional Up To 4 Axles + 7 Way Trailer Wiring Plug & 2-5/16" ball 4 inch drop Fits Models w/ Factory Tow Package Curt 13422 2 inch Tow Install Notes
Installation Instructions for 2003-2006 Cadillac Escalade, Suburban, Yukon, Tahoe, and 2003-2006 Chevy Avalanche
Part Numbers:
- 13422
Tools Required:
- Torque wrench
- Ratchet
- 9/16" socket
- 22mm socket
Step-by-Step Instructions:
-
Remove Existing Fasteners:
- Remove the existing M14 bumper bracket bolts from the bottom surface of the frame on both sides.
- Retain the bolts for the vehicle owner.
-
Raise Hitch into Position:
- Raise the hitch into position under the frame rails, aligning it with the existing weld nuts in the frame.
-
Install Fasteners:
- Secure the hitch using the provided M14 hex bolts with 9/16" conical washers in the existing weld nuts.
- Install the 1/2-13 x 1-3/4" carriage bolts with square hole spacers and secure with 1/2" flange nuts as shown in the diagram.
-
Torque Fasteners:
- Torque all 1/2" fasteners to 110 lb-ft.
- Torque all M14 fasteners to 126 lb-ft.
Hardware List:
- Square Hole Spacer, .250 x 1.50 x 2.00" (CM-SP12): Qty 1
- Hex Flange Nut, 1/2-13 UNC, Grade 8, YZ: Qty 2
- Hex Bolt, M14 x 2.00 x 40, Class 10.9, YZ: Qty 4
- Conical Washer, 9/16, YZ: Qty 4
- Carriage Bolt, 1/2-13 x 1-3/4, Grade 8, YZ: Qty 2
Safety Notes:
- Gross Load Capacity (Weight Carrying Hitch): 6,000 lbs (trailer weight), 600 lbs (tongue weight).
- Gross Load Capacity (Weight Distribution Hitch): 10,000 lbs (trailer weight), 1,000 lbs (tongue weight).
- Warning: Do not exceed the vehicle manufacturer's recommended towing capacity.
- Periodically inspect the hitch to ensure all fasteners remain tight and structural components remain sound.
Specifications:
- Hitch Weight: Not specified
- Installation Time: 30 minutes
- Drilling Required: No
Manufacturer Notes:
- Warranty covers defects in material and workmanship at the time of purchase.
- For technical support, call Curt Manufacturing at 1-877-287-8634.
Vehicle Applications:
- Fits 2003-2006 Cadillac Escalade
- Fits 2003-2006 Chevy Suburban, Tahoe, and Avalanche
- Fits 2003-2006 GMC Yukon
Excludes models with canister on passenger-side frame rail
Revision History:
- 6/30/2020: Initial version released.
Installation Instructions for 2003-2006 Cadillac Escalade, Suburban, Yukon, Tahoe, and 2003-2006 Chevy Avalanche
Part Numbers:
- 13422
Tools Required:
- Torque wrench
- Ratchet
- 9/16" socket
- 22mm socket
Step-by-Step Instructions:
-
Remove Existing Fasteners:
- Remove the existing M14 bumper bracket bolts from the bottom surface of the frame on both sides.
- Retain the bolts for the vehicle owner.
-
Raise Hitch into Position:
- Raise the hitch into position under the frame rails, aligning it with the existing weld nuts in the frame.
-
Install Fasteners:
- Secure the hitch using the provided M14 hex bolts with 9/16" conical washers in the existing weld nuts.
- Install the 1/2-13 x 1-3/4" carriage bolts with square hole spacers and secure with 1/2" flange nuts as shown in the diagram.
-
Torque Fasteners:
- Torque all 1/2" fasteners to 110 lb-ft.
- Torque all M14 fasteners to 126 lb-ft.
Hardware List:
- Square Hole Spacer, .250 x 1.50 x 2.00" (CM-SP12): Qty 1
- Hex Flange Nut, 1/2-13 UNC, Grade 8, YZ: Qty 2
- Hex Bolt, M14 x 2.00 x 40, Class 10.9, YZ: Qty 4
- Conical Washer, 9/16, YZ: Qty 4
- Carriage Bolt, 1/2-13 x 1-3/4, Grade 8, YZ: Qty 2
Safety Notes:
- Gross Load Capacity (Weight Carrying Hitch):
- 6,000 lbs (trailer weight)
- 600 lbs (tongue weight)
- Gross Load Capacity (Weight Distribution Hitch):
- 10,000 lbs (trailer weight)
- 1,000 lbs (tongue weight)
- Warning: Do not exceed the vehicle manufacturer's recommended towing capacity.
- Periodically inspect the hitch to ensure all fasteners remain tight and structural components remain sound.
Specifications:
- Hitch Weight: Not specified
- Installation Time: 30 minutes
- Drilling Required: No
Important Notes:
- Excludes models with canister on passenger-side frame rail.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams, please download the full installation PDF.
Need Assistance? 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:
The product is covered under warranty for the duration specified. For complete warranty instructions, please download the full installation PDF.
Vehicle Applications:
- Fits 2003-2006 Cadillac Escalade
- Fits 2003-2006 Chevy Suburban, Tahoe, and Avalanche
- Fits 2003-2006 GMC Yukon
End of Instructions
Installation Instructions for T-Connector Adapter ## Part Number: - 55774 ## Applications: This adapter is compatible with the following vehicles: - Buick: Enclave, Rainier - Cadillac: Escalade - Chevrolet: Avalanche, Silverado, Tahoe, Suburban, Trailblazer - GMC: Sierra, Yukon, Acadia, Envoy - Hummer: H2, H3 - Infiniti: QX56 - Isuzu: Ascender - Nissan: Titan, Pathfinder - Oldsmobile: Bravada - Saab: 9-7X - Saturn: Outlook ## Warnings: - Verify that there are no hidden items behind or under any surface before drilling to avoid damage or personal injury. ## Step-by-Step Instructions: ### For Vehicles Without a Factory 7-Way: 1. Locate the Trailer Harness Connector: - The harness is located under the vehicle, behind the bumper on the driver’s side. 2. Remove the Protective Cap: - Save the cap and ensure the mating surfaces of the connectors are free of dirt. Clean if necessary. 3. Connect the T-Connector Adapter: - Insert the T-connector into the vehicle's connector. Ensure it is fully inserted and the locking tabs are in place. 4. Attach the Protective Cap: - Place the protective cap on the remaining plug end. 5. Skip to Step 7 to complete the installation. ### For Vehicles With a Factory 7-Way: 5. Locate the Factory 7-Way Socket: - The socket is attached to the hitch on the driver’s side. 6. Separate the Factory Socket: - Disconnect the factory socket and the 7-way. 7. Connect the T-Connector: - Insert the T-connector between the factory socket and the 7-way. Ensure all connectors are fully inserted and the locking tabs are secure. ## Final Notes: - Ensure all connections are secure and test the functionality of the wiring. - For additional information, refer to the vehicle owner's manual. For further assistance, contact your manufacturer or authorized dealer.
Installation Instructions for T-Connector Adapter
Part Number:
- 55774
Applications:
This adapter is compatible with the following vehicles:
- Buick: Enclave, Rainier
- Cadillac: Escalade
- Chevrolet: Avalanche, Silverado, Tahoe, Suburban, Trailblazer
- GMC: Sierra, Yukon, Acadia, Envoy
- Hummer: H2, H3
- Infiniti: QX56
- Isuzu: Ascender
- Nissan: Titan, Pathfinder
- Oldsmobile: Bravada
- Saab: 9-7X
- Saturn: Outlook
Warnings:
- Verify that there are no hidden items behind or under any surface before drilling to avoid damage or personal injury.
Step-by-Step Instructions:
For Vehicles Without a Factory 7-Way:
-
Locate the Trailer Harness Connector:
- The harness is located under the vehicle, behind the bumper on the driver’s side.
-
Remove the Protective Cap:
- Save the cap and ensure the mating surfaces of the connectors are free of dirt. Clean if necessary.
-
Connect the T-Connector Adapter:
- Insert the T-connector into the vehicle's connector. Ensure it is fully inserted and the locking tabs are in place.
-
Attach the Protective Cap:
- Place the protective cap on the remaining plug end.
-
Skip to Step 7 to complete the installation.
For Vehicles With a Factory 7-Way:
-
Locate the Factory 7-Way Socket:
- The socket is attached to the hitch on the driver’s side.
-
Separate the Factory Socket:
- Disconnect the factory socket and the 7-way.
-
Connect the T-Connector:
- Insert the T-connector between the factory socket and the 7-way. Ensure all connectors are fully inserted and the locking tabs are secure.
Final Notes:
- Ensure all connections are secure and test the functionality of the wiring.
- For additional information, refer to the vehicle owner's manual. For further assistance, contact your manufacturer or authorized dealer.
Installation Notes:
- 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.
Installation Instructions for Cadillac Escalade, Chevrolet, GMC, and Hummer Vehicles
Part Numbers:
- 51352
- 51353
Wiring Access Location:
- BH3 - Under dash, in the junction box to the left of the steering column
Tools Required:
- Circuit tester
- Butt connectors (if modifications are needed)
- Electrical tape or caps
Step-by-Step Instructions:
Step 1: Locate the electrical junction box
- Find the black electrical junction box under the dash to the left of the steering column.
- Remove the box cover and locate the vehicle connection point in the top row, second from the left.
Step 2: Connect the CURT harness
- Insert the CURT brake control harness connector into the vehicle's connection point.
- Verify that the brake control harness receives battery power (+) by probing the connector with a circuit tester. Ensure none of the wires are touching.
- If power is detected, skip to Step 4.
Step 3: Install a universal brake control wiring kit (if necessary)
- If no power is supplied to the brake control harness, install a universal brake control wiring kit (#51500). Follow the kit's installation instructions:
- Cut the battery wire leading to the factory connector, leaving enough room to use a butt connector. Attach this to the battery wire from the universal kit.
- Cut the trailer brake wire leading to the factory connector, leaving enough room to use a butt connector. Attach this to the trailer brake wire from the universal kit.
- Important: Cap or tape the exposed ends of the cut wires to prevent shorting.
Step 4: Connect the brake control unit
- Insert the brake control harness's black connector into the brake control's quick plug connector.
- Secure the brake control harness using the provided cable ties, ensuring it avoids any pinch points.
Step 5: Complete the installation and test functionality
- Mount the brake control unit as directed in its user manual.
- Perform the recommended test procedures to verify functionality.
Hardware List:
- (1) CURT brake control harness
- (2) Cable ties
- (Optional) Universal brake control wiring kit (#51500)
Safety Notes:
- Follow all steps carefully to ensure proper installation.
- Cap or tape any exposed wire ends to avoid electrical shorts.
- Test the brake control harness for power and functionality after installation.
Specifications:
- Compatible Vehicles:
- Cadillac Escalade (including EXT & ESV)
- Chevrolet Avalanche
- Chevrolet Silverado
- Chevrolet Silverado (Classic only)
- Chevrolet Suburban
- Chevrolet Tahoe
- GMC Sierra
- GMC Sierra (Classic only)
- GMC Yukon
- GMC Yukon Denali
- GMC Yukon XL
- GMC Yukon XL Denali
- Hummer H2
Installation Instructions for Vehicles with BH3 Wiring Location
Part Numbers:
- 51352
- 51353
Wiring Access Location:
- BH3 - Under dash, in the junction box to the left of the steering column
Tools Required:
- Circuit tester
- Butt connectors (if modifications are needed)
- Electrical tape or caps
Step-by-Step Instructions:
Step 1: Locate the electrical junction box
- Find the black electrical junction box under the dash to the left of the steering column.
- Remove the box cover and locate the vehicle connection point in the top row, second from the left.
Step 2: Connect the brake control harness
- Insert the brake control harness connector into the vehicle's connection point.
- Verify that the brake control harness receives battery power (+) by probing the connector with a circuit tester. Ensure none of the wires are touching.
- If power is detected, skip to Step 4.
Step 3: Install a universal brake control wiring kit (if necessary)
- If no power is supplied to the brake control harness, install a universal brake control wiring kit (#51500). Follow the kit's installation instructions:
- Cut the battery wire leading to the factory connector, leaving enough room to use a butt connector. Attach this to the battery wire from the universal kit.
- Cut the trailer brake wire leading to the factory connector, leaving enough room to use a butt connector. Attach this to the trailer brake wire from the universal kit.
- Important: Cap or tape the exposed ends of the cut wires to prevent shorting.
Step 4: Connect the brake control unit
- Insert the brake control harness's black connector into the brake control's quick plug connector.
- Secure the brake control harness using the provided cable ties, ensuring it avoids any pinch points.
Step 5: Complete the installation and test functionality
- Mount the brake control unit as directed in its user manual.
- Perform the recommended test procedures to verify functionality.
Hardware List:
- (1) Brake control harness
- (2) Cable ties
- (Optional) Universal brake control wiring kit (#51500)
Safety Notes:
- Follow all steps carefully to ensure proper installation.
- Cap or tape any exposed wire ends to avoid electrical shorts.
- Test the brake control harness for power and functionality after installation.
Specifications:
- Compatible Vehicles:
- Vehicles with BH3 wiring location
For complete installation instructions, including diagrams and detailed information from the manufacturer, 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.
Installation Instructions for Brake Controller
Product Information:
- Application: For trailers with 2 to 8 brakes
- System: 12-volt negative ground systems
Package Contents:
- (1) Brake Controller Module with Quick Plug
- (1) Mounting Bracket
- (2) Keyed Spacers
- (4) Mounting Bracket Screws
- (1) Quick Reference Card
- (2) Keyed Washers
Tools Required:
- Drill with 1/8" drill bit
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
Key Features:
- Display for output and sensitivity settings
- Manual trailer braking control
- Switchable manual control options (100% or output setting)
- Brake light activation switch
- Reverse voltage and overload protection
- Compatible with electric and hydraulic trailer brake systems
Warnings and Important Notes:
- The brake controller’s positive and ground wires must connect directly to the vehicle’s battery with 10-gauge stranded wire.
- Avoid mounting near a CB radio or other RF transmitters.
- Disconnect the trailer plug when testing a breakaway switch.
Step-by-Step Installation Instructions:
1. Select the Mounting Location:
- The mounting location should be:
- Within the driver’s reach
- On a solid surface
- Free of obstructions behind the mounting surface
2. Install the Mounting Bracket:
- Position the bracket and mark the mounting holes.
- Drill holes using a 1/8” drill bit.
- Secure the bracket with the provided self-tapping screws (do not overtighten).
3. Attach the Brake Controller:
- Place the keyed spacer and washer on each side of the mounting bracket.
- Slide the brake controller into the bracket and secure it with screws.
4. Wiring the Brake Controller:
- Black Wire (Power Input): Connect to the positive (+) battery terminal through a 30-amp auto-reset circuit breaker.
- White Wire (Ground): Connect directly to the negative (-) battery terminal.
- Red Wire (Stoplight Input): Connect to the stoplight wire that is “hot” only when the brake pedal is pressed.
- Use a test probe to verify the correct wire.
- Blue Wire (Brake Output): Connect to the trailer’s brake control wire through the 7-way connector.
Switch Settings (Manual Control Configuration):
-
Brake Light Activation Switch:
- ON: Activates brake lights when the manual control is used (default).
- OFF: Brake lights remain inactive during manual braking.
-
Manual Brake Output Switch:
- ON: Limits manual braking to the gain (output) setting.
- OFF: Allows 100% braking power regardless of the output setting.
Setup and Calibration:
-
Connect the Trailer:
- Plug the trailer connector into the vehicle’s 7-way outlet.
- The controller will calibrate automatically, displaying "Calibration" followed by "Connected."
-
Set Initial Output and Sensitivity:
- Set the output to 2.0 and sensitivity (load) to 1.0 using the (+) and (-) buttons.
-
Test Drive and Adjust:
- Drive on a level surface at 25 mph.
- Press the brake pedal:
- Increase Output: If trailer braking feels insufficient.
- Decrease Output: If trailer brakes lock up.
- Adjust sensitivity for smoother stops using the (+) and (-) buttons.
Display Indicators:
Indicator | Description |
---|---|
Connected | Trailer connected, standby mode |
Not Connected | No trailer detected |
Low Volt | Tow vehicle system voltage is low |
Overload | Trailer brake system fault detected |
Short | Stoplight wire shorted to ground |
Error | Accelerometer error |
Disconnect | Trailer disconnected |
Troubleshooting Guide:
- Display is Blank: Check power and ground connections.
- Display Shows "Low Volt": Verify vehicle’s battery and charging system.
- "Overload" Error: Inspect the blue wire and trailer brake circuit for shorts.
- No Trailer Brakes: Confirm proper wiring of the trailer connector.
Final Notes:
- Secure all loose wires with cable ties.
- Periodically test the system for proper operation.
- Avoid exceeding the towing vehicle's maximum electrical capacity.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information, download the full installation PDF.
For Technical Support: Our team of experts is available to help. You can reach tech support by visiting www.trailerjacks.com or calling 877-869-6690.