Tip & How-To about Buick LaCrosse

Jump starting a Buick Lacrosse 2005

Jump starting
If your vehicles battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle.
1.Check the other vehicle. it must have a 12-volt battery with a negative ground system.
2.Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles are not touching each other. If they are, it could cause a ground connection you do not want. You would not be able to start your vehicle, and the bad grounding could damage the electrical systems.
3.Turn off the ignition on both vehicles. Unplug unnecessary accesories pluged into the cigarrete lighter or the accessory power outlets. Turn off the radio and lamps that are not needed. This will avoid sparks and save both batteries. And it could save the radio.
4.Open the hood on the other vehicle and locate positive (+) and the negative (-) terminal locations on that vehicle. You will not use yours vehicles battery for jump starting. It has a remote positive (+) jump starting terminal, located on the underhood fuse block, for that purpose.

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Dead battery, used jumpers. Lights work dashboard lights up. Motor will not turn over


If the battery is very dead, it can take a while for the dead battery to regain enough charge to start. If you are jump starting from a jump box and not a running vehicle, there may not be enough power available to get the charge to a level that can start the vehicle. Hook up the jumpers cable to a running vehicle and allow 10-20 minutes for the battery to gain some charge. Monitor both batteries carefully during this time and should any unusual amount of heat or if smoke starts to come from either battery, shut everything down and disconnect as quickly (and safely) as possible.

Nov 14, 2016 | Cars & Trucks

3 Answers

what damage could I have done to my audi a4 2003 by getting a battery jump. car was running great I left a tape in the cassette which killed the battery,


Check Engine light on after the battery jump start? scan the vehicle for any code that may have occurred and check the charging system

Jul 06, 2015 | 2003 Audi A4 Cabriolet

1 Answer

battery keeps losing voltage


Before going to procedure below, lightly rap on all relays with a screwdriver handle, a sticking relay can cause all kinds of problems.
Here is the test procedure for determining battery or alternator problem after requiring a jump start. Note, requires a voltmeter [$3.50 at Harbor Freight]
1] Check battery voltage on non-start vehicle. Will probably be under 12V. Verify good clean connections, look for cracked corroded or loose terminals.
2] Jump start. Note, always have the jumper vehicle running when performing a jump start, sounds basic but I actually had a friend who argued it should not, meaning he would be jumping with less voltage & could strand both vehicles.
3] With jumper cables removed, engine running, check voltage at battery. It should be 12.8V to 13.7V. If below 12.8V the alternator or voltage regulator are suspect. If in the range, the battery is either dead, low on water or in need of a full charge. If over 14.7V the voltage regulator is not functioning properly.
4] Failing those problems, with the vehicle shut off & the doors closed, disconnect the battery ground cable, put a 12V test light between the battery negative & a known good ground. If it lights, something, like an interior or glovebox lamp, is staying on. Remove fuses 1 at a time to find the problem circuit.


May 22, 2012 | 1998 Ford Taurus

3 Answers

I forgot to turn off the lights in my car. What can I do to start the car running? Do I need to replace the battery?


You can either jump the battery, or remove the battery from the car and bring it to your local repair shop to have it charged and tested, (a lot of auto supply stores will do this for free so call around), or you can jump start your battery and hope it holds a charge.

To jump a battery you will need a set of jumper cables and a second car, or a battery booster pack, (nice investment, they really are handy in a jam).

To jump a car with jumper cables:
******* Always where eye protection*********
1) Open the hood on the dead car and locate the battery.
2) Park the second car as close to the front of the dead car as possible, (just try to leave enough room to walk around the vehicles if you can).
3) Open the hood on the second car and locate the battery.
4) Attach the red, (positive) cable clamp to the Positive, (+) terminal of the battery on both cars.
5) Connect the black, (negative) cable clamp to the negative, (-) terminal of the battery of both vehicles.
6) With the second car running leave the vehicle to sit for about 5 minutes then attempt to start the dead vehicle.
7) If vehicle fails to start, wiggle the cable clamps to create a better connection.
8) If vehicle starts, remove the cable clamps negative first then the positive.
9) You may consider bringing the vehicle to your local auto supply to have the battery load tested once the car has run for a while, (most auto supply stores will do this for free so call around)


Using a booster pack is basically the same, except, you replace the second car with the booster pack. Follow the manufacturer’s instructions for charging the booster pack before use.

Good luck. Please rate, thanks.

Mar 07, 2010 | 2003 Toyota Corolla

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