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Pontiac of the Month

gscherer78ta's 1978 Trans Am

2019 February
of the Month

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coulomjo

HELP! TPMS and remotes not working!

Question

Hey guys,

My daughter played with the dome light switch Thursday night causing the battery to deplete itself. We recharged it overnight but now I have "SERVICE TIRE MONITOR SYSTEM" displayed in the dash and both remotes for keyless entry won't work at all!

I tried to relearn the remotes but the DIC won't activate the sequence (Instead of displaying REMOTE RELEARN ACTIVE it flashes and comes back to the press to start remote relearn).

I also wanted to relearn the TPMS sensors but I need my remotes to activate the sequence!

Does anyone know what to do?

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Hey guys,

My daughter played with the dome light switch Thursday night causing the battery to deplete itself. We recharged it overnight but now I have "SERVICE TIRE MONITOR SYSTEM" displayed in the dash and both remotes for keyless entry won't work at all!

I tried to relearn the remotes but the DIC won't activate the sequence (Instead of displaying REMOTE RELEARN ACTIVE it flashes and comes back to the press to start remote relearn).

I also wanted to relearn the TPMS sensors but I need my remotes to activate the sequence!

Does anyone know what to do?

Most TPMS systems run through the RCDLR (remote control door lock receiver) It is possible that the system reset and both need to be relearned.

Sadly, I do not have access to GMDealerworld any longer (Only downside of quitting my dealership job), and can not look up the process for relearning, but I would start there. And since the remotes are inop, you need a techII to do that.

It is also possible that the fuse for the RCDLR is blown, depending on how you jumpstarted or charged the car back up. That would be the easiest to check.

Either way I would just take it to the dealership and let them fix it under warranty, just omit the 'daughter ran the battery down' part... :) (Of course as long as you are under 36k miles)

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Woot! Found the problem! Found a TSB that had most of the information I needed!

That RCDLR thingie was labeled under the CLIMATE CONTROL SYSTEM/REMOTE FUNCTION ACTUATOR fuse. I pulled it out and back in to reset the RCDLR and it's all okay now!

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