- July 5: Chevrolet Bolt Battery Fire Recall Failed For 84 Vehicles recalls | 17 days ago
- July 4: Chevrolet Colorado and GMC Canyon Recalled For Fire Risk recalls | 18 days ago
- July 4: GM Recalls 2024 Chevrolet Blazer Electric Vehicles Over Control Issues recalls | 18 days ago
- July 2: No Missouri GM Oil Consumption Class Action Lawsuit news | 20 days ago
- June 14: Chevrolet Corvette Recall Issued Over Seat Belt Problems recalls | 38 days ago
Chevrolet TSB #G-209669
2013 Chevrolet Tahoe
TSB Document:
Affected Component: ENGINE (PWS)
- Summary
- 14390 - SPECIAL COVERAGE. ON SOME 2012-2014 MODEL YEAR CHEVROLET TAHOE VEHICLES EQUIPPED WITH RPO PPV OR 5W4, UNDER CERTAIN OPERATING CONDITIONS, SOME POLICE PACKAGE VEHICLES HAVE EXPERIENCED INFREQUENT ENGINE-IDLE PROBLEMS AND MOMENTARY POOR LOW-SPEED ENGINE PERFORMANCE. THESE PERFORMANCE ISSUES CAN BE TRIGGERED IF BOTH OF THE FOLLOWING CONDITIONS ARE SATISFIED: (I) THE VEHICLE IS OPERATED IN AMBIENT TEMPERATURES THAT EITHER EXCEED 100 DEGREES FAHRENHEIT IN A LOW-HUMIDITY ENVIRONMENT OR THAT EXCEED 85 DEGREES FAHRENHEIT IN A HIGH-HUMIDITY ENVIRONMENT; AND (II) THE VEHICLE IS OPERATED AT IDLE FOR A LONG PERIOD OF TIME, AT IDLE AFTER HEAVY POWERTRAIN USAGE, OR WITH A HEAVY ELECTRICAL LOAD. THE CONDITION CAUSES ENGINE-IDLE RPM FLUCTUATIONS (450-1000 RPM) AND HESITATION DURING ACCELERATION. WHILE GM HAS RECEIVED SOME FIELD REPORTS OF ENGINE STALLS AT IDLE, GM HAS NOT BEEN ABLE TO CONFIRM THESE REPORTS. GM HAS ONLY BEEN ABLE TO DUPLICATE A SIMILAR STALL BY OPERATING A TEST VEHICLE AT A TEMPERATURE THAT IS AT THE LIMIT OF THE FUELÂ’S HIGH-TEMPERATURE SPECIFICATION. IF SUCH A STALL DID OCCUR, THE STALL WOULD BE AT IDLE OR LOW SPEED, AND ALL ELECTRICAL AND SAFETY SYSTEMS WOULD CONTINUE TO FUNCTION AS DESIGNED. IF THE CONDITION OCCURS WITHIN THE SPECIAL COVERAGE TERMS, DEALERS ARE TO UPDATE THE ENGINE CONTROL MODULE (ECM) AND BODY CONTROL MODULE CALIBRATIONS.
Click a tab for more information.