1993 GMC Suburban Owner's Manual - Page 90

It canbedangeroustoleaveyourvehiclewiththeenginerunning. Your vehicle could move suddenly if theshiftleverisnotfully P (Park)withtheparkingbrakefirmlyset. in If you have four-wheel drive with a manual transfer case shift lever and yourtransfercaseis in N (Neutral),yourvehicle will befreeto in B (Park). So besurethetransfer roll,even if yourshiftleveris in N (Neutral). case'is in adrivegear-not And, if youleavethevehiclewiththeenginerunning, it could overheatandevencatchfire.Youorotherscouldbeinjured.Don't leaveyourvehiclewiththeenginerunningunlessyouhaveto. If you havetoleaveyourvehiclewiththeenginerunning,besureyour vehicleis in B (Park)andyourparkingbrakeisfirmlyset,beforeyouleave it. I youhavefour-wheeldrivewithamanualtransfercaseshiftlever,besure f in adrive gear-not in N (Neutral). thatthetransfercaseis Afteryou'vemovedtheshiftleverintothe P (Park)position,holdtheregular brakepedaldown.Then,see if youcanmovetheshiftleverawayfrom P (Park)withoutfirstpulling it towardyou. If you can, it means that the shift lever wasn't fully locked into P (Park). Parking Your Wehkie (Mama/ Transmission Modeis Onjy) Beforeyougetout ofyourvehicle,putyourmanualtransmission in W (Reverse)andfirmlyapplytheparkingbrake. If you havefour-wheeldrive,besureyourtransfercaseisin if it isn't. Yourvehiclecouldroll a drivegear. If youareparkingonahill,or if yourvehicleisequippedtotowatrailer, see"TowingaTrailer"or"ParkingonHills"intheIndex. 2-26