2023 GMC Yukon Service and Repair Manual

This factory service and repair manual for the 2023 GMC Yukon covers five trims of the four-door sport utility and three engines beneath them: the 5.3L and 6.2L overhead-valve gasoline V8s and the 3.0L turbocharged diesel inline-six with double overhead camshafts. Each engine has its own fastener specifications, clearances and diagnostic values, while the brakes, suspension, body and electrical systems are shared across AT4, Denali, Denali Ultimate, SLE and SLT. The manual keeps those two layers apart so the common work is not written out three times.

Engines covered

• 5.3L V8 (325 cu in) — OHV, naturally aspirated, gasoline
• 3.0L inline-six (183 cu in) — DOHC, turbocharged, diesel
• 6.2L V8 (376 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• AT4
• Denali
• Denali Ultimate
• SLE
• SLT

Known issues on the 2023 Yukon. Four recalls are on the federal record. One concerns rear suspension outer control arm bolts that were not heat treated correctly and can break, throwing the rear wheel out of alignment. Another covers brake control module software that may fail to light the low brake fluid warning, so a truck can be driven with the level down. A third involves 6.2L engines whose connecting rod or crankshaft components can give way. Of 229 complaints, 111 name the engine and 40 the power train, and the suspension, brake and engine internal procedures here answer them.