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Home >> Buick >> 1986 >> Riviera Base >> Repair and Diagnosis >> Engine Performance >> System >> BCM System, Part I >> Self-Diagnostic System >> Entering "Service Mode" >> Riviera Models

Riviera Models

Turn the ignition on. Touch the "OFF" and "WARM" key pads on the CRT climate control page simultaneously and hold until a double "Beep" is heard or a page entitled "Service Mode" appears on the screen. See Fig 1 .

Fig 1: "Service Mode" Page on CRT Screen
G5006