2017 Chevrolet Tahoe Problems: 6 Known Issues

On the 2015-2020 Chevrolet Tahoe 5.3L V8 (L83), gen V 5.3L engines use variable valve timing (VVT) with a cam phaser and VVT solenoid. Sludge and wear cause the phaser to rattle and the timing chain to stretch, producing a cold-start 'marbles in a can' rattle that often precedes a check-engine light. It sets crank/cam correlation codes (P0008/P0016/P0017) or VVT performance codes (P0011). GM PIP5258A covers P0011 cam actuator codes on the 5.3L L83 that persist after standard diagnosis, directing technicians to check oil pressure and the number 2 cam bearing that feeds the actuator. Ignored, a stretched chain can jump timing and cause severe internal damage.

On the 2007-2020 Chevrolet Tahoe, the Tahoe 5.3L and 6.2L V8 engines with Active Fuel Management (AFM) use collapsible hydraulic lifters that commonly fail between 80,000-120,000 miles. Failed AFM lifters cause misfires on deactivation cylinders (1, 4, 6, 7), ticking noises, and potential camshaft and cylinder wall damage. This is the same issue affecting the Silverado and Escalade. GM issued Service Bulletin 15-06-01-002O for 2015-2020 Tahoes with the 5.3L (L83) or 6.2L (L86), acknowledging collapsed or stuck AFM lifters. GM's bulletin calls for replacing the affected bank of AFM lifters (with new lifter guides), and the Valve Lifter Oil Manifold (VLOM) only when diagnosis finds a fault in it; the camshaft is replaced if lobes or rollers are worn.

On the 2015-2018 Chevrolet Tahoe, if your 2015-2018 Tahoe's brake pedal has started feeling firmer and you have to push harder than you used to, GM recall 19V645000 is worth checking. GM found that the vacuum created by the vacuum pump may decrease over time. Because that vacuum is what powers the brake booster, less vacuum means less brake assist. NHTSA's stated consequence is straightforward: braking effort goes up, the distance needed to stop the Tahoe gets longer, and the risk of a crash increases. Nothing about the defect makes the brakes disappear - it makes them progressively harder to apply. Chevrolet Tahoes were one of several GM SUVs and trucks swept into this campaign, which covers 3,456,719 vehicles across the entire recall population.

On the 2007-2020 Chevrolet Tahoe, tahoe models with Autoride (RPO Z55) or Magnetic Ride Control (RPO Z95) use rear air-assisted shocks and an electronic compressor that fail between 80,000-120,000 miles. The rear air-shock bladders rot or tear with age, causing the vehicle to sag. The compressor burns out from overwork. Same system as Escalade and Yukon. Many owners convert to conventional coil springs.

On the 2007-2020 Chevrolet Tahoe, the engine-driven water pump bearing and shaft seal wear out, leaking coolant from the weep hole and eventually letting the impeller wobble or the bearing seize. Coolant loss leads to overheating if ignored. It's a routine wear item on the small-block V8s, commonly needed around/after 100k miles — and some replacement pumps of poor quality fail far sooner, so pump quality matters.

On the 2015-2020 Chevrolet Tahoe, the factory A/C condenser on K2XX-platform Tahoes is a combination A/C condenser/transmission oil cooler ("combi-cooler") that cracks from thermal-stress cycling, typically at the coupler, allowing refrigerant to escape. The result is A/C that blows warm again a season or two after a recharge. It was widespread enough that GM issued Special Coverage Adjustment 17336 extending coverage for this leak on 2015-2017 Tahoes to 5 years / 60,000 miles, and a 2018 class action targeted 2015-2017 Tahoe/Suburban/Yukon. Simply adding refrigerant is only a temporary fix because the leak recurs.