Auto Service Professional

FEB 2018

Magazine for the auto service professional

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53 | ASP February 2018 Technical Service Bulletins Cadillac LIFELONG LUBE? e bulletin applies to 2000-2010 Cadillac Escalade models. e service information and owners manual do not show a service interval for the 7.6, 8.6, 9.5, 9.75, 10.5 and 11.5-inch rear axles with or without G80 locking differential. According to Cadillac, these axles do not need to be serviced under normal operation due to the synthetic fluid that is installed at the factory. As long as the fluid level is correct, there's no need to change the gear lube. Chevrolet RUBBED THE WRONG WAY Some owners of 2009-2011 Chevy Traverse vehicles (as well as 2008-2011 Buick Enclave, 2007-2011 GMC Acadia and 2007-2010 Saturn Outlook) may complain about an intermittent no-crank/no-start, lift gate inoperative and/ or warning lights on. Another concern may be that there is no communication on the low speed LAN with any combina- tion of the following codes set: U0073, U0140, U0151, U0155, U0159, U0164, U0170, U0184, U0194, U0198, U0214 and U0249. Inspect the wiring harness at the base of the left B pillar for chafing that may result from rubbing as the harness routes along the floor sheet metal. ere are two areas of concern: One is at the rear of the front door opening. e other is at the front of the rear door opening. If neces- sary, peel the tape from the area and look for any damaged wires. Repair as necessary. Acura OVERLY SENSITIVE ACURA is bulletin applies to all 2000 and later Acura models with SRS. e OPDS (occupant position detection system) sensors in the front passenger seat back pad are very sensitive and can set SRS DTC 15-3 (faulty OPDS sensor) or 86-11 (faulty OPDS seat back sensor) if they are exposed to even small amounts of electronic interference. Some electrical devices that plug into the accessory power socket, especially those using a power inverter/converter, can interfere with the seat back sensors and cause a false DTC. According to Acura, even fluorescent lights can cause this when placed close to these sensors. Find out if the customer is using any plug-in electrical devices or fluorescent lights near the front passenger seat. Typical plug-in devices include laptops, DVD players, cell phone/laptop charging units, A/C inverters, etc. If the answer is yes, clear the DTC and let the customer know how sensitive these plug-ins can be and to advise them not to use such items. Volkswagen VW AUXILIARY HEATER TIP is bulletin applies to all Volkswagen TDI diesels. e auxiliary heater is designed to improve the heating performance under certain conditions via three glow plugs in the coolant flange. If just one of the glow plugs becomes Note the two possible areas for wiring chafing.

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