1999 GMC Sierra 1500 Pickup Owner's Manual - Page 88

1999 GMC Sierra 1500 Pickup Manual

Page 88 highlights

Features & Controls To use the block heater: 1. Turnofftheengine. 2. Openthehoodandunwraptheelectricalcord. 3. Plug it intoanormal,grounded110-voltoutlet. ! Pluggingthecordintoanungroundedoutletcouldcause an electrical shock. Also, thewrongextensioncordcouldoverheatandcausea fire. You could be seriouslyinjured.Plugthecordintoaproperly groundedthree-prong110-voltoutlet. If thecord won'treach,usea heavy-duty three-prong extension rated at cord forleast 15 amps. Afteryou'veusedtheblockheater,besure to storethe cord inthe you manner it was, tohelpkeep it awayfrommovingengineparts.If don't, it could be tornanddamaged. Howlongshouldyoukeeptheblockheaterpluggedin?Theanswerdepends ontheweather,thekindofoilyouhave,andsomeotherthings.Insteadof tryingtolisteverythinghere,weaskthatyoucontactaGeneralMotors dealerintheareawhereyou'llbeparkingyourvehicle.Thedealercangive youthebestadviceforthatparticulararea. 2-20

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