What Compustar Auto Start Does
Compustar auto start is a remote engine starter system that lets you start your vehicle from outside the car using a wireless remote control or mobile app. The system sends a signal to your vehicle's engine, cranking it and running it for a preset time — usually 10 to 20 minutes — so the cabin warms up or cools down before you get inside.
The technology is installed by a professional technician and integrates with your vehicle's existing electrical and ignition systems. Compustar makes several models at different price points, ranging from basic remote-only systems to advanced versions that work through smartphone apps and include GPS tracking and security features.
Auto start is not the same as keyless entry or alarm systems, though Compustar makes products that combine all three. The auto start function specifically controls engine ignition remotely, which requires a direct connection to your vehicle's starter motor and ignition wiring.
Key Takeaways
- Compustar auto start requires professional installation by a certified technician, which typically costs between $300 and $600 depending on your vehicle and the model you choose.
- The system works through a wireless remote control, a smartphone app, or both, depending on which Compustar model you purchase.
- Your vehicle must have an automatic transmission for most Compustar auto start systems to function safely; manual transmission vehicles require special configuration or are not compatible.
- The engine runs for a set time (usually 10 to 20 minutes) and then shuts off automatically unless you start driving the vehicle.
- Compustar auto start does not work if your vehicle is locked or if the parking brake is not engaged, which are built-in safety features.
Installation Requirements and Costs
Compustar auto start must be installed by a professional technician, not as a do-it-yourself product. The installer needs to access your vehicle's steering column, ignition switch, starter motor, and electrical harness — work that requires specialized knowledge of your specific vehicle's wiring diagram and safety systems.
Installation costs vary widely based on your vehicle's make, model, and year. Newer vehicles with more complex electrical systems typically cost more to install than older ones. A basic remote-only system might cost $300 to $400 in labor and parts combined, while a smartphone-enabled system with GPS tracking can run $500 to $700 or more. Some installers charge a flat rate; others charge hourly labor plus the cost of the unit itself.
You can purchase Compustar systems directly from the manufacturer's website or through authorized retailers, then bring the unit to an installer, or you can buy and install through a single shop. Authorized Compustar dealers often have partnerships with local installers and can handle both the sale and the installation in one transaction.
Transmission Type and Vehicle Compatibility
Your vehicle's transmission type is the most important compatibility factor. Compustar auto start works with automatic transmissions because the system can safely start the engine with the transmission in Park. Manual transmission vehicles cannot use standard Compustar auto start because there is no way for the remote system to verify that the clutch is fully disengaged — starting the engine with the clutch engaged would cause the vehicle to lurch forward unexpectedly.
Some Compustar models offer a manual transmission mode that requires you to press the clutch pedal before the engine will turn over, but this defeats the purpose of remote starting and is rarely used. Most manual transmission owners straightforward cannot use this feature.
Hybrid and electric vehicles have different starting mechanisms and may not be compatible with standard Compustar systems. Before purchasing, confirm with the installer or retailer that the specific Compustar model works with your vehicle's powertrain type.
Remote Control vs. Smartphone App Options
Compustar offers two main ways to trigger auto start: a dedicated wireless remote control or a smartphone app. The remote control is a small handheld device similar to a car key fob that sends a signal to your vehicle from up to 1 mile away in open space (range is shorter in urban areas with signal interference). The remote requires batteries and does not need an internet connection.
Smartphone app versions, available on Compustar's higher-end models, let you start your vehicle from anywhere using your phone's cellular connection. These systems also provide real-time notifications, GPS location tracking, and the ability to set automatic start schedules. The app requires that your vehicle has an active cellular connection through a built-in modem, which may involve a monthly subscription fee (typically $10 to $15 per month) for the data plan.
Many Compustar systems include both the remote and the app capability, so you can choose which method to use depending on the situation. If you lose your remote, you can still use the app, and vice versa.
Safety Features and Automatic Shutoff
Compustar auto start includes several built-in safety mechanisms to prevent unintended vehicle movement or damage. The engine will not start if the parking brake is not engaged, which prevents the vehicle from rolling if the transmission is not fully in Park. The system also requires that the vehicle doors are locked before remote start will function, which prevents someone from opening a door and being surprised by a running engine.
Once the engine starts, it runs for a preset duration — typically 10, 15, or 20 minutes depending on your settings — and then shuts off automatically. If you press the brake pedal or turn the steering wheel while the engine is running remotely, the system recognizes that you are now driving and keeps the engine running normally. If you do not touch the vehicle during the preset time, the engine shuts down on its own.
The system does not allow the transmission to shift out of Park while the engine is running remotely. You must be physically in the vehicle with the key or fob to shift into Drive or Reverse.
Warranty and Ongoing Maintenance
Compustar units typically come with a manufacturer's warranty covering defects in the device itself, usually for one to three years depending on the model. The warranty covers the remote control, the installed module, and the wiring harness. Damage from improper installation or physical damage to the vehicle is generally not covered.
Installation work may have a separate warranty from the installer, typically one year. If the system stops working after installation, you should contact the shop that installed it first, as they may cover repairs at no cost if the problem stems from their work.
The system itself requires minimal maintenance once installed. Remote control batteries should be replaced when the range decreases noticeably, usually every one to two years. If you use the smartphone app, keep your phone's operating system and the Compustar app updated to may support compatibility and security.
Comparing Compustar to Other Auto Start Brands
Compustar is one of several auto start manufacturers, competing primarily with brands like Viper, Avital, and Crimestopper. Compustar is generally considered mid-range in price and features — more affordable than Viper but with more smartphone integration options than some budget brands. The main differences between brands are range, app functionality, installation complexity, and dealer network availability.
Viper systems tend to be more expensive but offer longer range and more advanced security features. Avital is Viper's budget line and shares much of the same technology at lower cost. Crimestopper and other brands offer basic remote start at lower prices but with fewer features and smaller installer networks.
Your choice often depends on what installers are available in your area and what features matter most to you. If smartphone control is important, Compustar and Viper both have strong app ecosystems. If you want the lowest upfront cost, a budget brand may be sufficient.
Frequently Asked Questions
Can I install Compustar auto start myself?
No. Compustar auto start requires professional installation because it connects directly to your vehicle's ignition, starter, and electrical systems. Improper installation can damage your vehicle's wiring, disable safety systems, or cause the engine to start unexpectedly. All Compustar systems must be installed by a certified technician.
Will auto start drain my car battery?
Not significantly. The system draws power only when you trigger it, and the engine running for 10 to 20 minutes actually charges the battery. If you remote start your vehicle multiple times per day without driving it, you could see a slight drain over weeks, but this is uncommon in normal use. Leaving the engine off for extended periods (weeks or months) poses a much greater battery drain risk.
Does Compustar auto start work in cold weather?
Yes, that is one of its main uses — warming the engine and cabin in winter. However, extremely cold temperatures (below -20°F) can reduce the range of the wireless remote and may slow engine cranking. The system will still function, but you may need to be closer to your vehicle to trigger it.
What happens if I lose my remote control?
If your system has a smartphone app, you can continue using the app to start your vehicle. If you have only the remote, you will need to purchase a replacement remote from Compustar or your installer. Replacement remotes typically cost $50 to $150 depending on the model. If you have both remote and app, losing one does not affect the other.
Can I use auto start if my vehicle is in a garage?
You should not remote start your vehicle inside a closed garage because the engine exhaust contains carbon monoxide, which is toxic and can accumulate quickly in an enclosed space. Remote start is designed for outdoor use only. If you need to warm your vehicle in winter, start it in the garage but open the garage door when ready.