I have a 2011 TL SHG-AWD with mid 80s on the clock. Recently, it's been tough to start when warm. Almost sounds like a battery issue, but I'd expect that when cold and not run for a while. Is my thinking wrong? It hasn't not started yet, but it intermittently turns over sluggishly after running for a while. Even after high speed highway driving. When cold, it typically fires right up. The opposite of what I'd expect with a battery, although mine is just about due for replacement. Any ideas, or should I just shut up and get a new battery?

Thanks in advance!

 

I have a 2012 TL with the same issue. Already tried the fuel relay.

I understand that there may be a "main" relay under the dash with broken solder joints. Going to try to check that out today.

 

To clarify, is your TL cranking a lot before starting when "warm" or is it just turning slow when cranking?

Mine cranks plenty fast when warm, it just cranks a while longer and has a rough start when "warm".

 

It was cranking slowly when warm. When cold, it was cranking quickly.

...until this morning, at least. Dead battery. All I got was clicking from the relay. The battery is an Autozone-purchased Duralast Gold. Only 18 months old (I thought it was older). I'll be off to Autozone later to argue with them about a replacement under warranty. No doubt they will try to give me a runaround, however. When I first posted this thread, it was showing about 13.8-14.0 volts running, so I'm assuming the alternator is fine. This AM the battery only showed 5.41 volts.