SOURCE: car wont start
charge or replace the car battery as low volts can cause this type of fault
to move re place the battery leads turn on dash lights put foot on brake and put in in neutral as there is a elec lock on the gear stick opperated by brake padel
SOURCE: Revere Polarity Jump Starting 92 LS400. Radio & More Wont Work
there are a few diodes in the electrical system that have been blown. Some are in the dash and some are in the different control modules in the car. Your insurance should pay for this problem.
SOURCE: need to replace key battery and lost the old one
If you take the key apart, the No is on the battery
SOURCE: My remote in my keys no longer work to unlock my doors or trunk
Most likely: You have to now "reprogram"your key fob and car to recognize each other. Look in your User's Manual for the car or, if it's an aftermarket fob/lock system, look in the user's manual for that. If there's nothing about battery replacement/reprogramming procedures, and it's a factory system, head into a dealer to reprogram it. It could run you up to $120, but that's cheaper than buying a new fob or system. If it's and aftermarket system and the manual says nothing, go to the place you had it installed (repair facility, Future Shop, etc) and have them reprogram it. If they installed it, they should know how to reprogram it.
Keep in mind, that's only the most likely option. Another possibility is that the receiver in the car, transmitter in the remote, or lock actuators/relays, etc in the car are the issue. It may not have been batteries in the first place at all. That said, it was most likely the batteries, and your best bet is trying to figure out how to reprogram the fob and car to recognize each other.
SOURCE: 3 button lexus gs300 key fob has stopped working
you may have to reprogram it. check your owners manual
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