1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Prestige APS787C Remote Start and Alarm System. This system is designed to enhance vehicle security and convenience with features such as remote engine start and a robust alarm system, offering a range of up to 1000 feet. Please read this manual thoroughly before attempting to install or operate the system.

Figure 1.1: Prestige APS787C Product Packaging and Remote Controls. This image displays the product packaging for the Prestige APS787C Remote Start and Alarm System. The white box features the 'Prestige' logo and text indicating 'Remote Start & Security System with up to 2,500 Feet of Range'. Two black remote controls, each with four buttons (lock, unlock, remote start, and a function button), are shown alongside the box.
2. Safety Information
- Professional Installation Recommended: Due to the complexity of vehicle electrical systems, professional installation by a qualified technician is strongly recommended to ensure proper function and prevent damage to your vehicle.
- Vehicle Compatibility: Ensure the system is compatible with your specific vehicle make and model before installation.
- Remote Start Safety:
- Never use remote start in an enclosed area, such as a garage, due to the risk of carbon monoxide poisoning.
- Ensure the vehicle is in Park (P) and the parking brake is engaged before activating remote start.
- Do not leave children or pets unattended in a vehicle that has been remote started.
- Alarm System: The alarm system is designed to deter theft and vandalism. It is not a guarantee against these events.
3. Components Overview
The Prestige APS787C system typically includes the following components:
- Control Module: The central processing unit of the system, installed within the vehicle.
- Remote Controls (Key Fobs): Handheld devices for operating the system's functions. The APS787C typically includes two remotes. Each remote features buttons for Lock, Unlock, Remote Start, and a Function button (often for trunk release or auxiliary features).
- Wiring Harnesses: For connecting the control module to the vehicle's electrical system.
- Antenna: For receiving signals from the remote controls.
- Siren: For audible alarm notifications.
- LED Indicator: A small light to indicate system status.
- Valet Switch: Used for programming and temporarily disabling the alarm system.
4. Setup and Installation
Installation of the Prestige APS787C system involves connecting to various vehicle electrical circuits. This process requires specialized knowledge and tools.
- Professional Installation: It is highly recommended that this system be installed by a certified automotive electronics technician. Incorrect installation can lead to vehicle damage, system malfunction, or safety hazards.
- Wiring Diagrams: Refer to the detailed wiring diagrams provided with the product packaging for specific connections. These diagrams are crucial for proper installation.
- Module Placement: The control module should be securely mounted in a hidden, dry location within the vehicle's interior.
- Antenna Placement: The antenna should be mounted on the windshield, away from metal obstructions, to ensure optimal remote range (up to 1000 feet).
- Programming: After installation, the remote controls and system features will need to be programmed according to the instructions provided in the installer's guide.
5. Operating Instructions
Your Prestige APS787C system is operated using the provided remote controls. Familiarize yourself with the button functions:
- Lock Button (Closed Padlock Icon):
- Press once to arm the alarm system and lock the vehicle doors. The vehicle lights will flash once, and the siren will chirp once.
- Press and hold for 3 seconds to activate panic mode (siren will sound, lights will flash). Press again to stop.
- Unlock Button (Open Padlock Icon):
- Press once to disarm the alarm system and unlock the vehicle doors. The vehicle lights will flash twice, and the siren will chirp twice.
- Remote Start Button (Car with Arrow Icon):
- Press twice within 3 seconds to remote start the vehicle. The engine will run for a pre-programmed duration (e.g., 10 or 15 minutes).
- To turn off the engine during remote start, press the remote start button twice again.
- Before driving, insert the key into the ignition, turn it to the ON/RUN position, and press the brake pedal.
- Function Button (Trunk Icon / '1 2' Label):
- Press and hold for 3 seconds to activate the trunk release (if connected and programmed).
- This button may also control other auxiliary functions depending on installation and programming.
- Valet Mode:
- Valet mode temporarily disables the alarm system, allowing the vehicle to be serviced without triggering the alarm. Remote start may also be disabled.
- To enter Valet Mode: Turn the ignition ON, then OFF. Within 10 seconds, press and release the Valet switch once. The LED will illuminate solid.
- To exit Valet Mode: Repeat the steps above. The LED will turn off.
6. Maintenance
- Remote Control Battery Replacement:
- When the remote control's range decreases or it becomes unresponsive, the battery may need replacement.
- Refer to the remote control's specific instructions for battery type and replacement procedure. Typically, this involves opening the remote casing and replacing a small coin-cell battery.
- Ensure proper polarity when inserting the new battery.
- System Inspection: Periodically check all wiring connections for security and corrosion. Ensure the siren and LED indicator are functioning correctly.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Remote control not working or reduced range. | Dead or weak remote battery. Interference. Out of range. | Replace remote battery. Move closer to the vehicle. Avoid areas with high radio frequency interference. |
| Remote start fails to activate. | Vehicle not in Park. Hood open. Low fuel. System in Valet Mode. Brake pedal pressed. | Ensure vehicle is in Park, hood is closed, and sufficient fuel is present. Exit Valet Mode. Ensure brake pedal is not pressed. Consult installer for specific vehicle interlocks. |
| Alarm triggers unexpectedly. | Sensitive shock sensor. Faulty sensor. Loose wiring. | Adjust shock sensor sensitivity (professional adjustment recommended). Inspect wiring. Contact installer for diagnosis. |
| Vehicle doors do not lock/unlock. | Wiring issue. Vehicle's door lock actuator issue. | Check wiring connections. Consult installer or vehicle mechanic. |
For issues not listed here, or if troubleshooting steps do not resolve the problem, please contact a professional installer or Prestige customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | APS787C |
| Brand | Prestige |
| Maximum Range | Up to 1000 feet (approx. 300 meters) |
| Compatible Devices | Cars |
| Remote Control Included | Yes (typically two) |
| Item Weight | 3.1 pounds (approx. 1.4 kg) |
| Package Dimensions | 8.3 x 5.9 x 5.4 inches (approx. 21.1 x 15 x 13.7 cm) |
9. Warranty and Support
9.1. Warranty Information
Prestige products are covered by a limited warranty against defects in materials and workmanship. The duration and terms of the warranty may vary. Please refer to the warranty card included with your product or visit the official Prestige website for detailed warranty information. Keep your proof of purchase for warranty claims.
9.2. Customer Support
For technical assistance, installation questions, or warranty service, please contact Prestige customer support. Contact information can typically be found on the product packaging, the official Prestige website, or through your authorized dealer.
- Online Resources: Check the official Prestige website for FAQs, updated manuals, and support contact details.
- Authorized Dealers: Your purchasing dealer or installer can often provide immediate support and service.