Some units of the GMC Sierra 1500, Yukon, and Yukon XL trucks and SUVs need an ECM software update to fix a glitch with the ...

Explaining California’s new ruling on ECM tuning and how it relates to smog checks.

Some units of the Cadillac Escalade and Escalade ESV from the 2022 and 2023 model years need a software update to fix a check ...

Because of the complex nature of the ECU, some repair facilities may not provide the service. Be sure to check with the repair shop before you take your vehicle there.

Because of the complex nature of the ECU, some repair facilities may not provide the service. Be sure to check with the repair shop before you take your vehicle there.