Jump-Start

The Dodge Charger (2006–2010, LX) mounts its main battery in the trunk, but provides remote jump-start terminals under the hood. Use these posts to jump-start the car safely — you don’t need to access the trunk battery. Follow the steps below to avoid sparks, ECU damage, or cable overheating.

What You Need

• Good quality jumper cables (8 AWG / 10 mm² or thicker) or a portable jump pack
• A donor vehicle with a healthy 12 V battery (engine size similar or larger), or a fully charged jump pack
• Eye protection and gloves

Find the Under-Hood Jump Points

• Positive (+) post: Under the hood, look for a red plastic cap covering the remote positive terminal.
• Engine/body ground (–): A designated ground stud or clean, unpainted metal on the engine block/strut tower. Do not use the negative post on the dead battery.

Jump-Start Procedure (with donor car)

1. Park the donor vehicle close enough for cables, but not touching. Both ignitions OFF, lights and accessories off.
2. Open the Charger’s hood and remove the red cap from the positive post.
3. Connect cables in this exact order:
   1. Red clamp → Charger + remote post.
   2. Red clamp → donor battery +.
   3. Black clamp → donor battery –.
   4. Black clamp → Charger engine/body ground (clean unpainted metal), not the battery – post.
4. Start the donor vehicle and let it idle for 2–3 minutes to pre-charge the Charger’s system.
5. Attempt to start the Charger. If it doesn’t start within 10 seconds, stop, wait 30–60 seconds, and try again.
6. Once started, keep both vehicles idling for 2–3 minutes.
7. Disconnect in reverse order (careful of moving parts):
   1. Black from Charger ground.
   2. Black from donor –.
   3. Red from donor +.
   4. Red from Charger + post (refit the red cap).
8. Let the Charger idle or drive gently for 15–20 minutes to replenish charge.

Jump-Start Procedure (with a jump pack)

1. Switch the jump pack OFF. Connect red + to the Charger’s + remote post, and black – to a solid engine/body ground.
2. Power the pack ON, wait a few seconds, then crank for up to 10 seconds.
3. Once the engine starts, turn the pack OFF and remove the clamps (– first, then +). Replace the red cap.

Important Safety Notes

• Do not reverse polarity. Double-check clamp colors and posts before connecting.
• Keep cables clear of belts, fans, and exhaust components.
• Avoid jumping a frozen or damaged battery (bulging case, acid leak). Replace instead.
• If the Charger cranks slowly or not at all, wait a few minutes of donor idling to build surface charge, then retry.
• Frequent dead batteries indicate an underlying issue (aging battery, parasitic draw, weak alternator). Test/replace as needed.

When It Won’t Cooperate

• Clicking only: Poor clamp contact or insufficient charge. Clean clamp bite points and try again after 2–3 minutes of donor idling.
• No crank, dash resets: Extremely low battery. Pre-charge longer (5–10 minutes) or use a higher-output jump pack.
• Starts then stalls: Loose clamp during removal or low fuel/other faults. Reconnect securely and try again.
• Security/immobilizer light on: Lock/unlock with the key fob, then retry. Check that the key is recognized.

After a Successful Jump

• Let the engine idle several minutes; avoid heavy electrical loads (rear defogger, blower on high) until voltage stabilizes.
• If the battery is over 4–6 years old or repeatedly goes flat, have it load-tested and consider replacement.
• Check for loose/dirty terminals at the trunk battery and the under-hood ground points; clean and tighten as needed.

Disclaimer: This guide is for general information. Always follow safe jump-start practices and your vehicle’s official safety guidance. Perform repairs at your own risk.