1995 GMC Sonoma Owner's Manual - Page 190

IO. Now start the vehicle with the good battery and run the engine fora while. 11. Try to start the vehicle with the dead battery. If it won't start after a few tries make sure all connections are good. If it still won't start, it probably needs service. 12. Remove the cables in reverse order to prevent electrical shorting. Take care thatthey don't touch each other or any other metal. Remove Cables In This Order: 2 3 1. Heavy Metal Engine Part 2. Good Battery (-) 3. Good Battery (+) 4. Dead Battery (+) Towing Your Vehicle Try to have a GM dealer or a professional towing service tow your vehicle. They can provide the right equipment and know how to tow it without damage. If your vehicle has been changed since it was factory-new by adding things like fog lamps, aero skirting, or special tires and wheels, these things could be damaged during towing. Before you do anything, turn on the hazard warning flashers. When you call, tell the towing service: Whether your vehicle has rear-wheel drive or four-wheel drive. 0 0 The make, model, and year of your vehicle. Whether you can move the shift lever for the transmission and shift the transfer case, if you have one. If there was an accident, what was damaged. 0 5-6