battery replacement

Reply Subscribe

Thread Tools

Search this Thread

Jun 7, 2017 | 09:11 AM

PatBurgess

Thread Starter

Driver School Candidate

Joined: Jan 2010

Posts: 4

Likes: 0

From: Virginia

battery replacement

Do I have to have a dealer reprogram my car after replacing the battery

Jun 7, 2017 | 10:13 AM

NickL

Pole Position

Joined: Feb 2012

Posts: 2,177

Likes: 939

From: MA

No. Just change the battery yourself.

Jun 7, 2017 | 12:31 PM

skiracer

Lead Lap

Joined: Nov 2015

Posts: 641

Likes: 50

From: SoCal

My Audi S4 and my old BMW X3 required dealer programming on new batteries. Not sure on Lexus...

Jun 7, 2017 | 12:38 PM

FastFord

Racer

Joined: Apr 2016

Posts: 1,387

Likes: 349

From: ON

Since this is posted in the 4RX section, why would you need to replace the battery already?

Dealer should be tossing one in for free.

Jun 7, 2017 | 01:40 PM

NickL

Pole Position

Joined: Feb 2012

Posts: 2,177

Likes: 939

From: MA

Sorry. I read the post too fast. I thought you meant reprogram the key fob when you're replacing the battery of the key fob.

Jun 7, 2017 | 08:52 PM

sderman

Advanced

Joined: Aug 2006

Posts: 645

Likes: 135

From: NJ

Quote:

Originally Posted by PatBurgess

Do I have to have a dealer reprogram my car after replacing the battery

You will probably lose at least some settings. What I have always done is attach my Battery Tender (trickle charger) onto the 2 battery cables before they are removed from the battery. This way the car's electronics continues to see some voltage. You remove the Battery Tender once the battery cables are tightened onto the new battery. Again, this is if you are talking about replacing the battery under the hood, not the battery in the key fob (which doesn't require reprogramming after replacement).

Last edited by sderman; Jun 8, 2017 at 05:43 AM. Reason: addition