HomePIT-4056 · CADILLAC, CHEVROLET, GMC
CADILLAC, CHEVROLET, GMC

PIT-4056

Manufacturer communications

Publication date
2012-02-01
Received by NHTSA
2007-09-20
NHTSA record numbers
10022691

Manufacturer summary

Original wording in English

GMC: UNABLE TO COMMUNICATE WITH THE EBCM DTC U0121. *NJ VEHICLES EQUIPPED WITH JL4. UPDATED 9/30/08. *PE UPDATED 6/27/11. *PE UPDATED 4/6/12. *PE

NHTSA manufacturer communications ↗

Reported code forms

U0121

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
ChevroletTRAVERSE2011
ChevroletTRAVERSE2010
ChevroletTRAVERSE2009
GMCSIERRA2008
GMCSIERRA 15002008
GMCSIERRA 15002007
GMCSIERRA 25002008
GMCSIERRA 25002007
GMCSIERRA 35002008
GMCSIERRA 35002007
GMCYUKON2008
GMCYUKON2007

Data coverage →