07/14/2021
What happens if you’re stuck with a dead battery? There is one correct way to safely jump start your car, without damaging the vehicles or jeopardizing your own safety.
See below for your Suzanne’s definitive step-by-step guide for jump starting a dead battery properly, and for a handy infographic that you can save to reference, or share with family and friends, see here: tinyurl.com/suzannejump
1. Preparation
Don’t attempt to use jumper cables if either vehicle has an electronic ignition system or is an alternatively fueled vehicle as this may damage the car.
Pull the working vehicle close to, but not touching, the stalled one.
Turn off ignitions in both cars.
Put both vehicles in park or neutral.
Engage emergency parking brakes.
Pop hoods.
Put on safety glasses.
Remove any terminal covers.
Wipe or wire-brush dirty terminals.
Don’t jump a leaky or frozen battery.
Don’t let cable clamps touch.
Don’t reverse the polarity (connecting positive + to negative -) or damage may occur.
2. Attach jumper cables
Grab the clean, corrosion-free jumper cables you keep in your vehicle or ask a fellow motorist for a pair.
Begin at the dead battery. Attach a red clamp to the positive + terminal.
Next, move to the working battery. Attach the other red clamp to the positive + terminal.
Attach the black clamp to the negative - terminal.
Attach the last black clamp to an unpainted metal surface on the stalled car, preferably the engine block, cylinder head or other chassis ground.
Start the working vehicle and let the engine run a few minutes.
Try to start the dead vehicle.
3. Remove cables
While the engine is running:
Disconnect the black clamp first, then disconnect the red.
Don't let the clamps touch each other while any cables are still connected to the cars.
DO NOT shut the engine off. Let it run for 15 minutes to recharge the battery.
4. Battery still dead?
Recheck the clamp connections.
Run the working vehicle again.
Try to start it again.
If that still doesn’t work, that’s where our Emergency Road Service coverage comes in handy!