Q: Engine in auto theft mode/ remote is lost, so valet key won't turn on engine.

asked by on

Is there any way to reset car computer so valet key will work ? Remote key is misplaced, and car motor will turn over but not run because auto theft mode seems to be on. Is only remedy to get new remote key???

My car has 100000 miles.
My car has an automatic transmission.

Hey there, unfortunately there is no way to reset the alarm without having a new key and having it cut and programmed to work on your car by a dealer scanner to program it for you. I recommend having 2 keys made and programmed to prevent a problem in the future.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Engine in auto theft mode/ remote is lost, so valet key won't turn on engine.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My boy accidentally hooked battery cables up wrong on his truck, and now it's got white smoke that smell like gas coming out.

When hooking up the battery cables backwards, the ground became the hot and the hot became the ground. Most likely the computer (ECM) could have failed and the fuel pump may have burned up. I recommend checking all of the...

Q: Cost of engine replacement in 2000 Volvo xc70

Hi there. Unfortunately, this is a service that our mobile mechanics are not able to perform. Engine replacement has become a growing industry in many large cities, with more specialty shops that offer this service specifically. It's difficult to give...

Q: Replace the starter but then turn it over still no start and fuse burnt out

Hi there. It's possible that you have a faulty ground wire on your starter or an exposed wire that is causing the fuse to pop. If the battery terminals were not removed before completing this repair, it's quite possible that...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.