2018 Chevrolet Tahoe Service and Repair Manual

This factory service and repair manual for the 2018 Chevrolet Tahoe brings the 6.2-liter overhead-valve V8 of 376 cubic inches back alongside the 5.3 of 325, both naturally aspirated and both listed for flex fuel or gasoline, under an eight-trim range running from Commercial and LS to Premier and the Midnight Edition. The body is a four-door sport utility. Two displacements mean two sets of engine specifications and two calibration families in the fueling and emissions diagnostics.

Engines covered

• 5.3L V8 (325 cu in) — OHV, naturally aspirated, flex-fuel or gasoline
• 6.2L V8 (376 cu in) — OHV, naturally aspirated, flex-fuel or gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Commercial
• LS
• LT
• Midnight Edition
• Police
• PPV
• Premier
• SSV

Known issues on the 2018 Tahoe. Three recalls stand on this year's record, and two of them describe the same failure from different angles: a mechanical vacuum pump whose output decreases over time, cutting the brake assist available so pedal effort climbs and the stop grows longer. The third covers a wheel-speed sensor that, on failure, lets the driveline protection system brake the wheel opposite the fault and pull the truck to one side at speed. Complaints number 103, led by the power train at 19, with the electrical system and engine at 12 each.