You can jump start a Subaru just like any other car, but there are important safety steps and considerations unique to Subaru vehicles due to their electrical systems. Properly following jumper cable protocols and understanding Subaru-specific quirks (like battery placement) ensures a successful and safe process.
This is a comprehensive guide about can you jump start a subaru.
Key Takeaways
- Use the correct polarity: Always connect red (+) to positive and black (-) to negative terminals to avoid short circuits.
- Subaru battery location: Some models (like Outback/Foresters) have batteries under the hood; others (Legacy/Impreza) may be behind a plastic panel.
- Jump-start timing: Start the donor car first, then the dead Subaru after 5–10 seconds to prevent electrical surges.
- Avoid metal-to-metal contact: Attach cables directly to terminals, not the battery post, to prevent sparks near flammable gases.
- Check for aftermarket electronics: Subaru’s advanced infotainment systems may require extra power—listen for warnings during startup.
- Seek professional help if unsure: If the car won’t start after multiple attempts, it could indicate a deeper issue (e.g., alternator failure).
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# Can You Jump Start a Subaru? A Complete Guide
## Introduction
Running out of battery is one of the most frustrating experiences for any driver—especially if you rely on your Subaru for daily commutes or outdoor adventures. But don’t panic: you absolutely can jump start a Subaru, provided you follow the right steps. Unlike some high-tech cars, Subarus aren’t inherently “immune” to jump-starts, but their electrical systems do have nuances that require attention. Whether you’re stranded in a cold morning or stuck on a remote trail, this guide will walk you through everything you need to know—from safety tips to troubleshooting common pitfalls.
Subarus are known for their reliability, but even the best engines need occasional boosts. The key lies in preparation. Before diving into cables and terminals, let’s break down what makes Subaru jump-starting unique and why proper technique matters.
## Understanding Subaru’s Electrical System
### Why Subarus Need Special Considerations
Most modern cars, including Subarus, rely on sophisticated electronic control modules (ECMs) that manage everything from engine timing to infotainment. This complexity means:
– Higher voltage demands: Subarus often use 12V systems with sensitive components vulnerable to surges.
– Battery placement varies: Models like the Forester have the battery under the hood, while Legacy hatchbacks hide it in a compartment behind seats.
– Aftermarket additions: Custom stereo systems or GPS trackers can drain the battery faster than stock setups.
### Common Subaru Battery Types
Subarus typically use lead-acid batteries, but newer models (2018+) may come with AGM (Absorbent Glass Mat) batteries. These are more resilient to deep discharges but still benefit from traditional jump-starting methods.
Pro Tip:
If you’re unsure about your battery type, check the owner’s manual or consult a dealership. AGM batteries are sealed and spill-proof, reducing risks during jump-starts.
## Step-by-Step Guide to Jumping Your Subaru
### Gathering Your Tools
Before attempting a jump-start, ensure you have:
– Jumper cables (heavy-duty, at least 6 feet long).
– Working donor vehicle (same or higher amperage).
– Flashlight (for low-light conditions).
– Safety gloves (optional but recommended).
Critical Safety Rule:
Never touch both jumper cables simultaneously to avoid electric shock. Keep loose clothing away from moving parts.
### Connecting the Cables Correctly
Follow these steps meticulously:
1. Park the donor car close: Engage parking brakes, turn off all electronics, and place both vehicles on neutral (automatic) or park gear (manual).
2. Locate the terminals: On Subarus, terminals are usually labeled (+) and (-). If hidden, remove battery covers carefully.
3. Connect red (+) to donor’s + terminal, then to Subaru’s + terminal.
4. Attach black (-) to donor’s – terminal, then to a *grounded metal surface* on the Subaru (e.g., frame bolt or unpainted metal part). Avoid connecting directly to the negative terminal if possible.
5. Start the donor car and let it idle for 2 minutes.
6. Attempt to start the Subaru. If it doesn’t work within 5 minutes, repeat the process.
7. Remove cables in reverse order: Black from Subaru, then donor’s -, red from Subaru, then donor’s +.
Why Ground Matters:
Connecting the second black cable to a ground point instead of the negative terminal reduces spark risk near the battery, where explosive hydrogen gas accumulates.
## Troubleshooting Failed Jump-Starts
### Common Reasons Your Subaru Won’t Start
– Weak battery: Even after jump-starting, the battery might be too degraded to hold a charge.
– Faulty alternator: If the battery dies immediately, the alternator isn’t recharging it.
– Corroded terminals: Clean terminals with a wire brush before reconnecting cables.
– Parasitic drains: Aftermarket accessories (like dash cams) may draw power when the car is off.
Quick Fix:
If the Subaru starts but dies again, disconnect the negative cable immediately. This cuts parasitic loads and prevents further drain.
## When to Call for Help
If your Subaru:
– Fails to start after three attempts.
– Makes clicking noises (indicating starter issues).
– Smells like burning rubber (possible wiring problem).
…it’s time to visit a mechanic or Subaru-certified technician. Persistent failures could signal a deeper issue, such as a failing starter motor or internal short circuit.
## Preventative Measures
Avoid future battery woes by:
– Regularly checking battery health: Use a multimeter (voltage below 12.4V suggests trouble).
– Keeping lights/accessories off: Unplug chargers or devices left in the car overnight.
– Installing a battery tender: Maintains charge year-round for Subarus stored in garages.
Pro Maintenance Tip:
For Subarus used in extreme weather, consider an upgraded battery rated for sub-zero temperatures (e.g., Optima YellowTop).
## Quick Q&A
Question 1?
Can I jump-start my Subaru with a non-Subaru donor car? Absolutely, as long as both are 12V systems. Ensure the donor has a healthy battery and enough reserve capacity.
Question 2?
What if my Subaru’s battery is completely drained? Try jump-starting anyway—some batteries recover briefly. If not, recharge the battery with a portable charger before attempting again.
Question 3?
Are there Subaru models with hidden batteries? Yes, some Imprezas and Tribesms have batteries behind the rear seat or trunk floor. Consult the manual for exact locations.
Question 4?
How long should I wait between jumps? If the Subaru restarts but dies quickly, give the donor car 5–10 minutes to recharge the battery before trying again.
Question 5?
Can jump-starting damage my Subaru’s electronics? Rarely, if done incorrectly. Always follow polarity rules and avoid prolonged connections (under 2 minutes).
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## FAQs
Can I jump-start a Subaru with a portable jump starter?
Yes, but ensure the jump starter meets or exceeds your Subaru’s battery amp-hour rating (typically 400–600A). Read the manufacturer’s instructions carefully.
Is it safe to jump-start a Subaru in winter?
Cold weather slows chemical reactions in batteries, making jump-starts harder. Pre-warm the car (if safe) or use a heated battery cover.
What does it mean if my Subaru clicks but won’t crank?
This usually signals a weak battery or faulty starter. Try jump-starting again; if it fails, seek professional diagnostics.
Do Subarus need special jumper cables?
No, but heavy-duty 6-gauge cables reduce resistance and improve current flow. Avoid thin, corroded cables.
Can jump-starting void my Subaru’s warranty?
Generally no, since jump-starting is a standard roadside procedure. However, improper methods (like reversed polarity) could cause unintended damage.
How do I know if my Subaru’s battery needs replacement?
Common signs include dim headlights, slow cranking, or dashboard warning lights. A battery tester can confirm its state-of-charge.
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## Conclusion
Jump-starting a Subaru is a straightforward task if approached methodically. By prioritizing safety—proper cable connections, grounding techniques, and timing—you can revive your car efficiently and avoid costly mistakes. Remember: prevention beats panic. Regular maintenance and awareness of your Subaru’s unique features will keep you ready for emergencies. Now go forth, stay prepared, and never let a dead battery leave you stranded!
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