How to jump start a Cadillac

How to jump start a Cadillac

Updated Thursday Mar 29, 2018

In this guide, you will find instructions on how to jump start a Cadillac. Applicable to models such as ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR. There are two ways to jump-start a Cadillac. You can either use a helper car to jump-start a dead Cadillac battery or use a jump box. These instructions will help you jump-start a Cadillac using both these methods.


Typical symptoms of a dead Cadillac battery include:

  • Cadillac Won't Start,
  • Vehicle engine won't turn over,
  • Click when you try to start
  • Can't unlock the car or turn on the ignition

What you will need

How to jump start a Cadillac

Step 1: Turn off the ignition

diy instructions on how to jump start

Modern cars are very sensitive to voltage and Cadillac is no exception. To avoid electrical problems, start by removing the key from the ignition.

manually open cadillac door to jump start dead battery ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR

In case your driver's door is locked, use the emergency key to unlock the driver's door. 

Step 2: Open Hood

Open the hood. Locate the hood release underneath the dash. Pull the lever until you hear the hood pop open.

unlock cadillac hood

Next, you need to release the hood safety latch at the front of the hood.

Step 3: Locate Battery

1995-2020 Cadillac vehicle Jump Starting Instructions

Locate the terminals where you can jump start your Cadillac. First, check if there is a RED Positive Terminal as shown in the bottom picture. If there is use this terminal to connect the positive. If you Cadillac doesn't have a dedicated positive terminal connect directly to the (1) battery.

Step 4: Determine Jump Terminals

instruction on how to jump start Cadillac  with dead battery

Here is the positive terminal. Here you will connect the red clamp from your jump box or jumper cables.

Step 5: Connect Neg. Jumper Cable

how to jump start vehicle with jumper cables

Here is one place where you can connect to the negative terminal. A bolt on the strut tower or any bare metal can also be used to connect the negative cable (black clamp).

Step 6: Jump Start Cadillac

If you are using a jump box, you simply need to turn it on. If you are using a helper car, connect the jumper cables to the helper car. 

Red clamp goes on the red battery terminal. Black clamp goes on the negative battery of the helper car. Start the helper car and let it idle for a couple of minutes.

Step 6: Start Engine

Cadillac ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR JUMP START

Start the engine. If the car won't start the first time, check the clamps to make sure they are making good contact. Let the jump box or helper car charge your dead battery for at least 10 minutes and try again.


Important notes to keep in mind when jump starting a car. 

  • If the car doesn't start or you hear a click, it means the clamps are not making good contact. Or the battery is so discharged, that it needs more juice. Check the clamps to make sure they are making good contact. 
  • When a helper car is being used, let the helper car charge your car battery for at least 15 minutes. Stay close to the vehicle and monitor the dead battery. If the dead battery starts to feel too hot, disconnect the jumper cables immediately. 
  • Once you get your car started do not turn it off right away. Drive it for let it idle for at least 30 minutes or more. If you turn the car off right away, it may need a jump start again. 
  • If your car battery is over 7 years old, it may need to be replaced. Especially if it is no longer holding a charge. 
  • Low voltage due to a dead battery can set various fault codes in modern vehicles. For exmaple, the airbag light may stay on after you jump start the car.